Produtos

LaMotte Soil Sampling Tube ²⁶

$ 55.90 USD

Soil Sampling Tube – Precision in Every Sample

Obtain clean and reliable soil samples for scientific analysis

The Soil Sampling Tube (Code 1055) is an essential tool for those conducting soil studies in agriculture, environmental research, and scientific education. Made of galvanized steel, its design with a serrated edge and side window allows intact core extraction and real-time visualization of soil stratification. Its lightweight construction and ease of use make it the ideal ally for achieving precise and consistent results in both laboratory and field testing.

Key Features

• Accurate extraction: Obtains 1” diameter cores with minimal sample disturbance.
• Side window: Allows inspection of soil stratification before removing the core.
• Durable construction: Made of galvanized steel for strength and longevity.
• Serrated edge: Facilitates penetration even in compact soils.
• Depth measurement: Ideal for locating and separating specific layers (e.g., 6–8 inches).
• Educational and professional use: Recommended for soil science studies and agronomic analysis.
• Includes sampling bags: Supplied with 20 LaMotte sample bags for a complete process.
• Easy to clean: The open design allows removal of the sample without damaging the core.

• Specifications
• In the Box
• Required Items
• Optional Items
• Documents

• Specification	Model/Variant
  Total length	12 inches (30.5 cm)
  Core diameter	1 inch (2.54 cm)
  Maximum sample depth	10 inches (25.4 cm)
  Material	Galvanized steel
  Cutting edge	Serrated and sharpened
  Side window	9.75 inches (24.7 cm)

• • x1 Soil Sampling Tube (Code 1055)
  • x20 LaMotte Soil Sampling Bags (Code 0615)
• • No additional items required for operation
• • "A Study of Soil Science" Manual (1530-FREE)
  • LaMotte Soil Handbook (Code 1504)
• • SOIL SAMPLING TUBE

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LaMotte STH Series Soil Analysis Kits ²⁶

$ 757.90 USD

This product is sold by BIOWEB United States just for delivery in US. This line...

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LaMotte Tracer PockeTester pH and Temperature Meter ²⁶

$ 355.00 USD

LaMotte Tracer PockeTester pH and Temperature Meter

The TRACER PockeTester™ is the essential tool for measuring key parameters in saltwater pools, providing accurate results for salinity, pH, TDS, and temperature in a compact and easy-to-use device.

The PockeTester™ is designed for pool professionals, allowing the measurement of five parameters: Conductivity, TDS, Salinity, pH, and Temperature with a single electrode. It has memory that stores up to 25 labeled readings and includes automatic shut-off and low battery alert functions.

Key Features:

• Salt measurement range: 0 to 9,999 ppm.
• pH: 0.00 to 14.0.
• TDS: 0 to 9999 ppm.
• Temperature: 32.0° to 149°F.
• Memory for 25 labeled results.
• Versatile measurement units: pH, μS, mS, ppm, ppt, mg/L, g/L, °C, °F.
• Automatic shut-off and low battery alert.

• Specifications
• What's in the Box
• Required Items
• Optional Items
• Documents

• Test Factor	Range	Resolution	Accuracy
  TDS	0 to 99.9 ppm (mg/L), 100 to 999 ppm (mg/L), 1.00 to 9.99 ppt	0.1 ppm (mg/L)	±2%
  Salinity	0 to 99.9 ppm (mg/L), 100 to 999 ppm (mg/L), 1.00 to 9.99 ppt	0.1 ppm (mg/L)	±2%
  pH	0.00 to 14.00 pH	0.01 pH	±0.01 pH
  Temperature	32° to 149°F (0 to 65°C)	0.1°F/°C	±1.8°F/°C

• • LaMotte Tracer PockeTester pH and Temperature Meter
  • Manual
• • None
• • Replacement Electrode pH/EC/TDS/SAL
  • Weighted Stand with Five 20 mL Sample Vials
  • 24 Sample Vials with Caps
  • Sample Vial with Cap
  • Conductivity Standard, 84 μS, 30 mL
  • Conductivity Standard, 1413 μS, 30 mL
  • Conductivity Standard, 12,880 μS, 30 mL
  • pH Buffer Tablets 7.0, Pack of 100
  • Salt Calibration Standard, 3,000 ppm, 120 mL
• • Technical Specifications (English)

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LaMotte Tracer PockeTester pH and Temperature Meter ²⁶

$ 232.00 USD

The LaMotte Tracer PockeTester for pH and Temperature allows direct pH readings from 0.01 to 14.00 pH. The Tracer offers simultaneous displays of pH and temperature, with memory storage for 15 readings. The pH range is from 0.00 to 14.00 pH / 0.01 pH. The temperature range is from 5°C to 90°C.

• Specifications
• In the Box
• Required Items
• Optional Items

• Test Factors	Range	Resolution	Accuracy
  pH	0.00 to 14.00 pH	0.01 pH	± 0.01 pH
  Temperature	0 to 65°C	0.1°F / °C	± 1.8°C

• • LaMotte Tracer PockeTester for pH and Temperature (1)
• • None
• • Chlorine test tablets (pack of 100)
  • Weighted stand with five 20 ml sample cups
  • 24 sample cups with lids
  • Sample cup with lid
  • pH Probe (Range 0-14.00 / ± 0.01 pH)
  • ORP Probe (Range ORP Probe)
  • Cl2 Probe (Range 0-10.00 / ± 10% of reading)

(S 18/6/2021)

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LaMotte Tracer PockeTester Salinity, TDS, Conductivity, and Temperature Meter ²⁶

$ 229.75 USD

Precise Measurement of Salinity, TDS, Conductivity, and Temperature in One Device

Discover the accuracy and convenience of the TRACER PockeTester™. This compact and easy-to-use device provides reliable measurements to maintain complete control over water quality in pools or laboratories.

The Salt/TDS/Conductivity/Temp TRACER PockeTester™ is a versatile electronic meter designed to accurately monitor sodium chloride levels in saltwater pools, as well as measure Total Dissolved Solids (TDS) and temperature. With a wide measurement range and high sensitivity, it is the ideal tool for professionals and enthusiasts who require fast and consistent data.

Key Features:

• Salinity Measurement: Range from 0 to 9,999 ppm, with a resolution of 0.1 ppm and accuracy of ±2%.
• TDS (Total Dissolved Solids) Measurement: Range from 0 to 9,999 ppm, with a resolution of 0.1 ppm and accuracy of ±2%.
• Conductivity: Measures from 0 to 19.99 mS with a resolution of 0.1 µS and accuracy of ±1%.
• Temperature: Measures from 0 to 65°C (32° to 149°F) with a resolution of 0.1°C/F and accuracy of ±1.8°F/°C.
• Portable and Compact Design: Easy to operate and carry, optimized for both field and laboratory use.

• Specifications
• In the Box
• Required Items
• Optional Items
• Documents

• Test Factors	Range	Resolution	Accuracy
  Conductivity	0 to 199.9 µS, 200 to 1999 µS, 2.00 to 19.99 mS	0.1 µS	±1%
  Salinity	0 to 9,999 ppm (mg/L)	0.1 ppm (mg/L)	±2%
  TDS	0 to 9,999 ppm (mg/L)	0.1 ppm (mg/L)	±2%
  Temperature	0 to 65°C (32° to 149°F)	0.1°F/°C	±1.8°F/°C
  Note: Not interchangeable with Cl/pH/ORP TRACER models.

• • 1x TRACER PockeTester™ Multichannel Meter
  • 1x Instruction Manual
• • None
• • Weighted stand with five 20 mL sample cups
  • 24-pack of sample cups with caps
  • Conductivity Standard, 84 μS, 30 mL
  • Conductivity Standard, 1413 μS, 30 mL
  • Conductivity Standard, 12,880 μS, 30 mL
  • Salt Calibration Standard, 3,000 ppm, 120 mL
  • Replacement Probe: EC/TDS/SAL Replacement Electrode
• • Technical Specifications (English)

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LaMotte Water Pollution Detection Kit - Kit 1 ²⁶

$ 608.75 USD

🔴  Due to the content of this product, it has air fees applicable for exportation. This product is sold by BIOWEB Global for US delivery only.

Ideal for examining water quality in known or suspected contaminated aquatic environments.

Key Features

• Individual test modules for 7 key test factors.
• Comprehensive instructions.
• Reagents for conducting 50 tests for each factor.
• All necessary apparatus.
• Three manuals.

• Specifications
• In the Box
• Required Items
• Optional Items

• Specifications
  Titration Tests
  Test Factor	Range (# Tests)	Kit Codes	Shipping Code
  Dissolved Oxygen	0-10.0 ppm (50)	5860-01	LQ
  Colorimetric Tests
  Test Factor	Range (# Tests)	Kit Codes	Shipping Code
  Chlorine	0.2-3.0 ppm (50)	3308-01	NH
  pH	3-10.5 (100)	5858-01	R1
  Nitrate-Nitrogen	0.2-1.0 ppm (40)	3119-01	R3
  Phosphate	0.2-1.0 ppm (50)	3119-01	R3
  Ammonium Nitrogen	1.0-4.0 ppm (50)	5864-01	R1
  Temperature	-5°C – 45°C	1066	NH

  
  

  † Proposition 65 WARNING:  Cancer and reproductive harm - www.P65Warnings.ca.gov/chemicals

  * Shipping Codes. Import Restriction.

  
  
• • Pollution Detection Kit (1)
• • None
• • None

(EO 20230828)

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Lantern Mantles Equivalent to Coleman String Tie Mantles #11 ²⁶

$ 5.95 USD

Replace your Coleman lantern’s mantles with these equivalent string tie mantles. These easy-to-use replacement mantles...

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Larvae Collection Kit

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Complete Larvae Collection Kit: Essential Tools for Field Work

Efficiently and neatly collect larvae with this portable and durable kit. Ideal for demanding research and vector control environments.

The Larvae Collection Kit is a complete set of tools designed for collecting and sampling larvae in the field, all carefully organized in a durable yellow toolbox. This kit facilitates the work of researchers, entomologists, and environmental health professionals by providing the necessary instruments for efficient collection of mosquito larvae and other aquatic organisms. Its portable and practical design makes it an ideal solution for fieldwork in wet or remote environments.

Key Features

• Portable and Organized Kit: All components are stored in a durable, easy-to-carry yellow case.
• Dipper with Telescopic Handle: Easily reaches water sources at various distances.
• Sieve Set: Efficiently separates debris and concentrates larvae.
• 250 ml Sample Jars: Includes two reusable jars for specimen transport.
• Permanent Marker: Easily cleaned with isopropyl alcohol for field labeling.
• 500 ml Wash Bottle: Useful for rinsing samples or cleaning instruments.
• Waterproof Flashlight: For observations in low-light conditions or dark areas.
• Waterproof Notepad: Allows note-taking even in humid environments.
• Water Pipettes: Includes one large 50 ml pipette and three small 3 ml pipettes for handling larvae.
• Reusable Gloves: Provides suitable protection for handling samples in the field.

• Specifications
• In the Box

• Specification	Detail
  Product Type	Larvae collection kit
  Application	Field sampling of larvae
  Case Material	Durable plastic, yellow color
  Included Accessories	11 essential items for collection and documentation
  Portability	High, includes organized case
  Outdoor Use	Suitable for wet environments

• • Dipper with telescopic handle
  • Sieve set
  • 250 ml sample jars (2)
  • Permanent marker
  • 500 ml wash bottle
  • Waterproof flashlight
  • Waterproof notepad
  • 50 ml water pipette
  • 3 ml water pipettes (3)
  • Reusable gloves (1 pair)

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Laser Bird Repellent for Long-Range Outdoor and Indoor Use

$ 860.00 USD

X-Laser X-45P-2 Dual Laser Bird Repeller

Effective Bird Control with Bicolor Technology and Intelligent Rotation

The X-45P-2 laser repeller is one of the most effective and advanced solutions for bird control. Using dual laser beams (red and green), it creates an environment that birds dislike, forcing them to move to other areas without causing them harm. Its beams constantly change pattern and location within a 158° horizontal and 42° vertical angle, preventing birds from becoming accustomed. In addition to its effectiveness, this method is completely eco-friendly, as it does not use poisons, traps, or chemicals, keeping the environment, local wildlife, and your family safe.

Key Features

• Dual Thick Laser Beams (Red and Green).
• 158° Horizontal Rotation and 53° Vertical Rotation with Main Beam of 42°.
• Wide Coverage up to 450 m² (4,800 sq ft).
• Remote Control Included.
• Silent and Humane Operation.
• Robust IP65 Structure.

• Specifications
• In the Box
• Required Items
• Optional Items
• Documents

• Brand	X-Laser
  Model	X-45P-2
  Laser Color	Dual (Red + Green)
  Coverage Area	Up to 450 m² (4,800 sq ft)
  Horizontal Rotation Angle	158°
  Main Beam Angle	42°
  Maximum Beam Angle	165°
  Power Supply	AC 100V-240V, 50/60Hz
  IP Rating	IP65 (Water and Dust Resistant)
  Housing Material	Cast Aluminum
  Operating Temperature	0–40 °C

• • 1x X-45P-2 laser repeller unit
  • 1x Rotation motor
  • 1x Main power cable
  • 1x Laser cable
  • 1x Remote control
  • 4x Metal anchors
  • 1x User manual (English)
• • Power source (wall outlet)
  • Outdoor protected outlet
• • Timer switch (Optional)
• • Brochure (English)

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LaserTech Download Cable 36-inch LTI 4-Pin to DB9

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A 4-pin to DB9 download data cable for TruPulse series instruments.

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Leatherman OHT Multi Tool, 16 Tools

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For years multi-tool users could choose from two distinct options when it came to a "one-hand-operable" multi-tool: one-hand-opening pliers OR one-hand-opening blades. Today, Leatherman has taken these two well-loved ideas and fused them into the first ever, 100% one-hand-operable multi-tool, the Leatherman OHT. This industry-first tool features spring-loaded pliers and wire-cutters so you don't tire your hand adjusting and readjusting your grip. Handles with visual imprints of the tool beneath make for quick identification. A lifesaving strap cutter and oxygen bottle wrench, threading for common-size cleaning rods and much more make this a one-handed workhorse of a tool.

Tools

•  01 Spring-action Needlenose Pliers
•  02 Spring-action Regular Pliers
•  03 Spring-action Premium Replaceable Hard-wire Cutters
•  04 Spring-action Premium Replaceable Wire Cutters
•  05 420HC Knife
•  06 420HC Serrated Knife
•  07 Saw
•  08 Strap Cutter
•  09 #8-32 Cleaning Rod/Brush Adapter
•  10 Can Opener
•  11 Bottle Opener
•  12 Oxygen Tank Wrench
•  13 Phillips Screwdriver
•  14 Large Screwdriver
•  15 Medium Screwdriver
•  16 Small Screwdriver

• Specifications
• In the box
• Required items
• Optional items

• Specs
  Weight:	9.9 oz
  Closed Length:	4.5 in
  Open Length:	6.6 in
  Primary Blade Length:	1.37
  Width:	1.6 in
  Overall Thickness:	.8 in
  Materials:	420HC Stainless Steel, 154CM Stainless Steel, Black Oxide

• • Wire cutter
  • Pliers
  • Screwdriver
  • Wrench
  • Blade
  • Knife
  • Pliers
  • Sheath
  • Strap cutter
• • None
    
• • Seath
  • Replacement wiew cutter kit
  • Premium leather sheath

  EO20230203

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Leatherman OHT, 16 Tools

$ 116.95 USD

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Leatherman Raptor Multipurpose Shears

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The Leatherman Raptor Shears feature the necessary tools for uniformed response professionals to work safely and swiftly in an emergency situation. Developed with input from special operations medics, emergency medical technicians, and fire professionals familiar with standard shears, the Raptor shears were created with the right balance of multipurpose functions for emergency response without an excess of tools to complicate life-threatening situations. When it comes to survival, the Raptor responds loud and clear. Includes a holster. Commonly used as: Emergency response shears, industrial shears, fabric shears, kitchen shears, garden shears.

• Specifications
• In the Box
• Required Items
• Optional Items

• Specifications
  Product Type	Multi-Tool
  Closed Length	12.7 cm
  Weight	164 g
  Materials	420HC Stainless Steel, Glass-filled Nylon, Carbide

• • Leatherman Raptor Multipurpose Shears (1)
• • None
• • None

(S 8/11/2020)

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Leatherman Super Tool 300, 19 Tools

$ 173.75 USD

One of our most popular with replaceable wire cutters, extra-long blades and more comfortable handles.

The award-winning, Leatherman Super Tool 300 is the multi-tool for the working man. Larger pliers are the strongest we've ever produced and the sloped-top handle design means you can maneuver them further into tight spaces. When you're working with gloves on, the large side cutouts make it easy to still grab components and rolled handles make for a comfortable grip. Stranded, hard and regular wire cutters all come standard on Super Tool 300, and because they're removable you can repair or re-sharpen on the spot. 19 tools all ready for your toughest jobs. Super Tool 300 is back from vacation and ready to get to work.

Features

• All Locking Features
  

  All locking features means that every tool and knife on the body of the handle, with the exception of the plier head, will lock into place. The all locking design enables the user to operate individual tools safely and effectively. By locking them into place when fully open, the user can put pressure on the implement while safely completing the job, before manually unlocking the tool to stow it away.

• Lanyard Ring

  This secure ring is for attaching the tool safely and securely to a lanyard. Often people who work near water or on scaffolding attach their tool to a lanyard on their person to avoid losing the tool if it's dropped.

• Specifications
• In the box
• Required items
• Optional items

• Closed Length	4.5 in | 11.5 cm
  Open Length	7.0 in | 17.78 cm
  Primary Blade Length	3.2 in | 8.13 cm
  Weight	9.6 oz | 272.15 g
  Width	1.2 in | 3.0 cm
  Overall Thickness	0.76 in | 1.9 cm
  Materials	420HC Stainless Steel, 154CM Stainless Steel, Black Oxide

• • Needlenose Pliers
  • Regular Pliers
  • Premium Replaceable Wire Cutters
  • Premium Replaceable Hard-wire Cutters
  • Stranded-wire Cutters
  • Electrical Crimper
  • Wire Stripper
  • 420HC Knife
  • 420HC Serrated Knife
  • Saw
  • Awl w/ Thread Loop
  • Ruler (9 in | 22 cm)
  • Can Opener
  • Bottle Opener
  • Wood/Metal File
  • Phillips Screwdriver
  • Large Screwdriver
  • Medium Screwdriver
  • Small Screwdriver
• • None
    
• • None

(DR 20220817)

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LED Body w/ right hand stage

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Repair Part - BA310 LED body with right hand stage.

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Leo E. Miller, Naturalista Incógnito

$ 45.00 USD

Between 1911 and 1916, the American Museum of Natural History of New York conducted a...

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Lichenpedia A Brief Compendium

$ 17.95 USD

Lichenpedia is a delightfully entertaining and beautifully illustrated A–Z treasury about the strange, obscure, and remarkable...

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Life in a Shell: A Physiologist's View of a Turtle

$ 18.95 USD

Trundling along in essentially the same form for some 220 million years, turtles have seen...

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Livingstone: Revised and Expanded Edition

$ 25.00 USD

David Livingstone (1813–1873) is revered as one of history’s greatest explorers and missionaries, the first...

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Lizards of the World: A Guide to Every Family

$ 29.95 USD

Lizards are one of nature’s great success stories: survivors from the time of the dinosaurs,...

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Long Stem Garden and Compost Moisture Meter

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Reotemp Long Stem Moisture Meter for Soil and Compost

Measure Real Soil and Compost Moisture with Professional Precision to Improve Plant Health and Composting Efficiency

The REOTEMP Long Stem Moisture Meter (MMXX) measures the moisture content of soil and compost piles using a sensor located at the very tip of the probe. This direct measurement removes guesswork and helps you make more accurate decisions when watering plants or managing compost conditions.

During gardening or composting, it is common to wonder how wet the material really is. This moisture meter provides a clear and reliable reading, indicating whether the soil or compost is relatively wetter or drier, allowing for more efficient plant care and compost management.

The instrument uses a 0 to 10 moisture scale to represent relative wetness levels rather than percentages. The sensor is sensitive only at the probe tip, and calibration instructions are conveniently printed on the meter head for easy and consistent use.

Key Features

• Accurate moisture measurement in soil and compost using a sensor located at the probe tip.
• Relative moisture scale from 0 to 10 to identify wetter or drier conditions.
• Long stem lengths available from 24 to 60 inches for deep measurements.
• Thick 5/16 inch diameter stem that provides added strength and durability.
• Rugged metal construction designed for demanding gardening and composting use.
• Ergonomic probe handle that allows for a firm and secure grip during measurement.
• Calibration instructions printed on the meter head for permanent reference.
• Powered by one AAA battery included for immediate operation.
• One year limited warranty that supports long term reliability.

• Specifications
• In the Box

• Weight	3.00 lbs
  Measurement Type	Relative moisture scale
  Measurement Range	0 to 10
  Sensor Sensitivity	Located only at the probe tip
  Stem Diameter	5/16 inch
  Stem Lengths	24 to 60 inches
  Construction Material	Metal
  Power Source	1 AAA battery
  Warranty	1 year limited

• • 1x REOTEMP Long Stem Moisture Meter.
  • 1x AAA Battery.

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Look Inside Also Available: A Blue New Deal Why We Need a New Politics for the Ocean

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An urgent account of the state of our oceans today—and what we must do to...

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LOOK INSIDE Also Available: Bird versus Bulldozer A Quarter-Century Conservation Battle in a Biodiversity Hotspot

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An examination of the struggle to conserve biodiversity in urban regions, told through the story...

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Look Inside Also Available: In Search of Meadowlarks

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An ornithologist’s personal look at farming practices that finds practical solutions for sustainable food production...

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Lost Animals: Extinction and the Photographic Record ²⁶

$ 24.95 USD

Paleontological Data Analysis An up-to-date edition of the indispensable guide to analyzing paleontological data. Paleontology...

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Lumber Crayon Holder

$ 13.25 USD

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Magnet Animal Catcher

$ 1,920.00 USD

This air-powered net gun is suitable for small animal capture, primarily birds and dogs. When...

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MagNet Animal Catcher Replacement Nets and Head

$ 42.50 USD

Use additional launchers or refill for your animal capture net gun if you need to...

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Magnifier 10X with Interchangeable Reticle Scale LED

$ 55.54 USD

High-Precision LED Magnifying Glass with 10x Magnification

Illuminate and Examine Gemstones, Jewelry, Coins, Stamps, Electronics, and More with LED Lighting and Glass Reticle Scales

This DANOPLUS Scale Loupe provides up to 10x magnification. It features a 25mm diameter and a 20mm glass reticle scale chart, which can be clearly seen through the eyepiece. The loupe is equipped with 8 LED lights that illuminate the field of view and the stones being viewed, ensuring enhanced visibility and clarity. With its magnification capabilities and illumination, it us useful tool for tasks such as gemstone inspection, jewelry appraisal, and other detailed examinations.

Aplications

• Gemstone Inspection
• Jewelry Appraisal
• Coin Collecting
• Stamp Collecting
• Watchmaking and Horology
• Electronics and Circuit Board Inspection
• Precision Engineering

 

8 Bright LED Light Source

Designed to provide ample illumination to the field of view and the objects being viewed through the loupe. The lights are strategically placed to ensure even and uniform illumination, allowing for clear visibility and enhanced detail when examining stones, jewelry, or other objects requiring magnification. The LED lights are energy-efficient and provide consistent lighting, ideal for various applications where additional lighting is necessary for a thorough examination.

Features

• 【Powerful 10X Magnification】This scale loupe magnifier features a 10x magnification lens, allowing you to see small details with exceptional clarity.
• 【8 LED Lighting】DANOPLUS Loop Magnifier is equipped with 8 built-in LED lights, this magnifier provides ample illumination for examining tiny objects or examining fine print.
• 【4 Glass Scale Charts】The Jewelers Loupe is included with 4 glass reticle scale charts, which is able to measure 20mm each. These charts help you accurately measure and identify small objects.
• 【25mm Field View】The jeweler's loupe is 25mm wide field of view, allows you to see a larger area at once, making it easier to inspect and analyze tiny details.
• 【Compact and Portable】This jewelry loop magnifier is small and lightweight, making it easy to take with you on the go. It fits easily into a purse, pocket, or backpack.

• Specifications
• In the Box
• Required Items
• Optional Items
• Documents

• Specifications
  Batteries Required?	No
  Item Weight	0.17 Kilograms (5.9 ounces)
  Lens Material	Glass
  Product Dimensions	1.18"L x 0.78"W
  Magnification Strength	10x
  Manufacturer	Danoplus
  Lens Width	0.78 Inches

• • 1 x Scale Loupe
  • 4 x Glass Reticle scale chart
  • 4 x AG9 button battery (installed)
  • 1 x Metal Hook
  • 1 x Synthetic Leather Case
• • None
• • Adjustable Stand
  • Replacement LED Lights
  • Rechargeable Batteries
  • Carrying Case
  • Cleaning Cloth
  • Anti-Glare Screen
• 

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Mammals of China

$ 24.95 USD

China's breathtaking diversity of natural habitats - from mountains and deserts to grasslands and lush...

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Mammals of South America, Volume 2: Rodents

$ 95.00 USD

The second installment in a planned three-volume series, this book provides the first substantive review...

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Managing the Mountains: Land Use Planning, the New Deal, and the Creation of a Federal Landscape in Appalachia

$ 28.00 USD

Winner of the 2010 Charles A. Weyerhaueser Book Award as given by the Forest History...

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Mantax Black Mechanical Caliper with Gator Eyes Laser Pointers ²⁵

$ 1,021.25 USD

Mantax Black Mechanical Caliper with Gator Eyes

Measure Tree Diameters from a Distance with Precision, Speed, and Outstanding Visibility.
Green Laser Technology Designed for Professionals Working in Challenging Field Conditions.

Order the Mantax Black Mechanical Caliper with green Gator Eyes laser pointers for excellent visibility, even in sunny environments. This advanced system allows accurate diameter measurements from a distance when access is limited by water streams, debris, poison ivy, or other obstacles, eliminating the need to approach the tree directly.

The Gator Eyes laser system is factory-assembled on the patented foldable jaws of the Mantax Black, DP II, and Digitech Professional calipers. With a measuring range exceeding 40 m (130 ft), the green laser remains visible in daylight and performs best in dusk and low-light environments, ensuring fast and reliable measurements in the field.

Características Destacadas

• Patented foldable jaws designed for durability and compact transport.
• Green Gator Eyes laser pointers for long-distance diameter measurement.
• Exclusive alloy-coated aluminum scale with non-reflective surface.
• Rounded scale profile with hollow center for strength and reduced weight.
• Ergonomic handle suitable for all hand sizes and extended use.
• Smooth sliding operation with no loose parts or fragile components.
• Indestructible one-side readings that do not wear off over time.
• Factory-calibrated system designed for professional forestry applications.

• Especificaciones
• En la Caja
• Artículos Opcionales

• Jaw Design	Patented Foldable Jaws
  Scale Material	Alloy-Coated Aluminum
  Available Scale Lengths	500 mm, 650 mm, 800 mm / 18 in, 24 in, 30 in
  Laser Type	Green Gator Eyes Laser Pointers
  Measuring Range	Over 40 m / 130 ft
  Reading Type	One-Side Non-Reflective Scale
  Handle Design	Ergonomic for All Hand Sizes
  Compatibility	Haglöf Marktax Marking System
  Manufacturing Quality	Superior Swedish Design and Engineering

• • 1x Mechanical Caliper Mantax Black with Gator Eyes.
  • 1x User Manual.
• • 1x Holster for Haglöf Caliper.

Mantax Black Mechanical Caliper with Gator Eyes

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Mantax Black Mechanical Caliper ²⁶

$ 302.50 USD

The Mantax Black is the finest mechanical caliper ever developed by Haglöf. It features patented foldable jaws, an elegant rounded non-reflective aluminum measuring scale with multiple graduation options, and an ergonomically designed handle suitable for hands of all sizes. Like all Haglöf calipers, the Mantax Black is equipped with permanent scale graduations that will not wear off, even after years of intensive field use.

Every detail of the Mantax Black caliper is the result of extensive production experience, customer feedback, expert advice, and innovative engineering. When used together with Haglöf Gator Eyes laser pointers, it allows accurate diameter measurements from a distance, making fieldwork faster, safer, and more efficient than ever.

• Specifications
• In the Box
• Required Items
• Optional Items

• - Patented foldable jaws
  - Exclusive alloy-coated aluminum scale available in 500, 650, 800, and 950 mm or 18", 24", 30", and 36"
  - Rounded scale profile with hollow center for increased durability, strength, and reduced weight
  - Ergonomic handle designed to fit all hand sizes comfortably
  - Smooth and precise sliding movement
  - No loose parts and no fragile components
  - One-side, indestructible readings on a non-reflective scale
  - Optional version available with Haglöf Gator Eyes laser pointers
  - Compatible with the Haglöf Marktax Marking System
  - Superior Swedish quality in functionality and design
• - Mechanical Caliper (1)
  - User Manual
• None
• - Holster for Haglöf Caliper
  - Mantax Black Mechanical Caliper with Gator Eyes Laser Pointers

Mantax Black Mechanical Caliper

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Mantax Blue Mechanical Caliper ²⁶

$ 195.50 USD

The Mantax Blue provides excellent diameter measurement. With its adjustable jaws and unique bright blue design for high visibility, the Mantax Blue is ideal for diameter measurement in any environment. Available in the widest range of scale lengths and graduation options, the Mantax Blue is a diameter caliper you can rely on for many years. The Mantax Blue caliper is used for a wide variety of applications across many fields: measuring tree and timber diameters, logs, in the fishing industry, wildlife management, and the healthcare industry.

The Mantax Blue is often used in research studies where statistics are required, for example, measuring the length of tuna or shellfish in a specific area, turtle shell width, forest flora composition, and measuring bone length and BMI in humans.

The simple construction of the Mantax Blue caliper allows any operator to start working immediately. The scale is made of lightweight aluminum. Choose from a wide variety of scale and graduation options, ranging from 400 mm to 1270 mm, or inch/cm combinations. With rounded contours and digits that will not fade even after years of daily field use! There are no delicate parts, no corrosion, and no deterioration of the scale divisions.

• Specifications
• In the Box
• Required Items
• Optional Items
• Manuals

• Features
  Metric Scales	11-100-1101: 400 mm. 11-100-1102: 500 mm. 11-100-1139: 600 mm. 11-100-1103: 650 mm. 11-100-1104: 800 mm. 11-100-1105: 950 mm. 11-100-1138: 1000 mm. 11-100-1006: 1020 mm. 11-100-1107: 1270 mm.
  Wildlife / Fish Measuring Calipers with Short Jaws	11-100-1037: 1100 mm. 11-100-1052: 1520 mm. 11-100-1137: 1800 mm.
  Inch Graduated Scales	11-100-1110: 18 in. 11-100-1111: 24 in. 11-100-1112: 30 in. 11-100-1113: 36 in. 11-100-1114: 40 in. 11-100-1115: 50 in.
  Dual Graduation	11-100-1116: 18 in / 500 mm. 11-100-1117: 24 in / 650 mm. 11-100-1118: 30 in / 800 mm. 11-100-1119: 36 in / 950 mm.
  French Triple Graduation	11-100-1123: 500 mm. 11-100-1124: 650 mm. 11-100-1125: 800 mm. 11-100-1129: 800 mm with gauge marker. 11-100-1126: 950 mm. 11-100-1127: 1020 mm. 11-100-1128: 1270 mm.
  Other Graduation	11-100-1140 Mantax Blue 1250 mm with 5 cm classes / mm graduation.
  Material	Coated aluminum alloy, non-reflective
  Handle Material	Reinforced fiberglass polycarbonate plastic

• • 1x Mantax Blue Mechanical Caliper
• • None
• • Belt Holster for Haglöf Caliper
• • Technical Specifications Manual (English)

(S)

calipers

(S 7/1/2020)

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Manual Band Dendrometers

$ 58.75 USD

Measure growth and water status of trees daily and seasonally with these band dendrometers. Trunk...

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Manual Básico de Fototrampeo. Aplicación al Estudio de los Vertebrados Terrestres

$ 35.00 USD

The detection, identification and study of terrestrial vertebrates harder to spot because of its rarity,...

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Manual Mosquito Trappers with HEPA Filter ²⁶

$ 90.50 USD

Risk-Free Capture: The Ultimate HEPA Filter Solution for Researchers. Efficient tools for the safe capture...

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Marine Biology

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Levinton's Marine Biology is highly acclaimed and regarded by many as the best, most authoritative...

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Mariposa Road: The First Butterfly Big Year

$ 22.00 USD

With a love for adventure as great as his lifelong fascination with butterflies, America’s best-known...

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Mark III Scissor Grip Fish Tagger for Floy T-Bar Tags ²⁶

$ 36.75 USD

New scissor grip fish tagger. Has a maximum insertion depth of 5/8”, and 1 needle...

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Master Lock Python Adjustable Locking Cable

$ 41.95 USD

This versatile cable lock features a patented locking mechanism that holds the cable tight at...

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Master Lock Python Master Cable Lock ²⁶

$ 15.75 USD

The patented adjustable locking mechanism of this cable lock holds the cable tight at any...

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Mathematical Modeling in Systems Biology: An Introducction

$ 50.00 USD

Systems techniques are integral to current research in molecular cell biology, and system - level...

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MB Bronze Messenger for Closing Mechanisms

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Precision Activation with the MB Bronze Messenger

The essential component for triggering deep-water closure mechanisms, engineered to guarantee perfect sampling in plankton nets and oceanographic bottles.

The MB Bronze Messenger is a cornerstone of aquatic sampling engineering, acting as the vital link between the researcher and the submerged equipment. Designed to slide with precision along the main line, its function is to unfailingly activate the closing mechanisms of plankton nets, oceanographic bottles, and Ekman grabs. Manufactured from high-density bronze, this device ensures a steady descent and effective impact, allowing the capture of underwater nature to occur at the exact moment and depth required, protecting the purity of every collected sample.

Key Features

• Threaded opening system that allows for quick and secure installation at any point on the line.
• Robust bronze construction with AISI 316 stainless steel cable for total durability.
• 8mm central hole optimized for lines up to 6mm in diameter.
• Versatile design compatible with tandem or cascade sampling systems using its attachment wire.
• Available in two distinct weights to adapt to various current conditions and depths.

• Specifications
• In the Box

• Parameter	Model MB-01	Model MB-02
  Primary Material	Bronze	Bronze
  Cable Material	AISI 316 Stainless Steel	AISI 316 Stainless Steel
  Weight	450 g	850 g
  Maximum Length	71 mm	159 mm
  Body Diameter	35 mm	35 mm
  Max. Bottom Diameter	45 mm	45 mm
  Central Hole	8 mm Ø	8 mm Ø

• • 1x MB Bronze messenger
  • 1x Stainless steel attachment wire

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Mechanical Counter with Back Run Stop ²⁶

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Mechanical Flow Meter with Back-Run Stop: Scientific Precision for Hydraulic Monitoring

The industry standard for exact water flow quantification in plankton nets and stationary applications, ensuring rigorous data integrity through integrated back-run stop technology.

The Mechanical Flow Meter with back-run stop is a specialized precision instrument designed for the most demanding oceanographic and limnological research. Its primary application is the accurate determination of the volume of water passing through a plankton net, although its robust design also makes it ideal for stationary monitoring in rivers and outfalls. By utilizing a three-blade impeller directly coupled to a non-resetting five-digit counter, the device provides a reliable mechanical record of every revolution during deployment.

Engineered for vertical operations, the "back-run stop" feature is critical for maintaining sample integrity, as it prevents the counter from registering reverse movements that could skew results. Constructed from a high-performance combination of plastic and titanium, the flow meter offers exceptional durability and corrosion resistance in aquatic environments. With a constant hydraulic pitch of 0.3 meters per revolution, researchers can easily convert mechanical counts into precise towing distances and volumetric data, ensuring that every expedition yields high-quality scientific evidence.

Key Features

• Integrated Back-Run Stop: Specifically designed for vertical deployments to ensure the counter only records forward flow.
• Precision Engineering: Features a three-blade impeller coupled to a five-digit mechanical counter.
• Robust Materials: Built with titanium and technical plastics for maximum resistance in saline and freshwater environments.
• Versatile Deployment: Suitable for both towed equipment like plankton nets and stationary flow monitoring.
• High Accuracy: Delivers measurements within ± 5% in the primary range of 0.6 to 10 m/s.
• Easy Installation: Features a triple-point nose piece connection for secure mounting inside net rings.
• Simplified Calculations: Standardized 0.3 m hydraulic pitch allows for rapid determination of filtered water volume.

• Specifications
• In the Box
• Documents

• Product ID	438 115
  Length	205 mm
  Body Diameter	32 mm
  Impeller Diameter	75 mm
  Materials	Plastic, Titanium
  Measuring Range	0.3 to 10 m/s
  Accuracy (0.6 - 10 m/s)	± 5%
  Accuracy (0.3 - 0.6 m/s)	± 10%
  Hydraulic Pitch	0.3 m per revolution
  Counter Range	99,999 revolutions
  Weight in Air	145 g

• • 1x Mechanical Flow Meter with Back-Run Stop
  • 1x Towing Bridle
• • Technical Datasheet HYDR-438-115 (English)
  • User Manual HYDR-438-115 (English)

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Mechanical Flowmeters GO Environmental

$ 587.50 USD

Use in rivers, estuaries, canals, sewer outfalls, pipes, and harbor entrances to determine velocity and distance information or use with plankton nets to determine water volume associated with each tow. Both models incorporate precision molded rotors coupled directly to six digit counters which record each rotor revolution. Supplied with a standard calibration curve (number of counts/unit time vs. velocity) sealed inside transparent body. A single pin and lanyard system located ahead of the lateral center of mass allows the flowmeter to maintain correct dynamic alignment with the fluid flow in which it is immersed. The ref. 2030R6 with a rotor of 7 in, is ideal for slow water (6 to 100 cm/sec) and ref. 2030R with a rotor of 3 in, is ideal for faster water (10 to 790 cm/sec).

Available extension handle for use of mechanical flowmeters in streams and moving water. 8 feet extends up to measure the flow of current hard to reach. Sold separately.

Flujómetro Mecánico, flowmeter

• Specifications
• In the Box
• Required Items
• Optional Items
• Manuals

• • Data readout: Six 10-digit counter wheel reading 000000 to 999999. Ten counts per rotor revolution, non-resetting. Read by noting difference in beginning and end readings. Counter advances through 000000. 999999 counts equals approximately 14.5 nautical miles.
  • Speed Range: With standard rotor, approx. 10cm/sec (1/5 knot) to 7.9 meters/sec (15 knots).
  With low-speed rotor, approx. 6cm/sec (3/25 knot) to 100cm/sec (2 knots).
  • Mounting: Universal bridle allowing single-point connection for towing or two-point connection within net mouth. 3-point connection ring is also available as an option. High-speed impeller rotates clockwise, low-speed impeller rotates counterclockwise.
  • Weight in Air:  225 grams (8 ounces).
  • Weight in Water: 113 grams (4 ounces).
  • Materials: Polycarbonate body, Celcon impeller, nickel-plated brass nose cone, Armalloyed stainless steel rotor and idler gear shafts. PVC low-speed impeller available as an option.
  • Dimensions: 21.3cm (8 3/8”) overall length. Standard rotor diameter is 6.98cm (2 3/4”). Low-speed rotor diameter is 16.5cm (6 1/2”).
  • Depth Rating: Unlimited (free flooding). Standard order of a 2030 series flowmeter includes universal bridle, standard or low-speed rotor. Standard order of a 2031 series flowmeter includes universal bridle, standard or low-speed rotor and pigtail (short length of cable and underwater connector for connection to readout cable. Readouts and other options to be ordered separately.
• • Flowmeter (1)
  • Manual 
• • None
• • Extension Handle
• • User’s Manual (English)

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Mechanical Flowmeters GO Environmental w/ Electronic Underwater Connector

$ 1,000.00 USD

Advanced Stream and Flow Monitoring with the General Oceanics Mechanical Flowmeter

The ultimate tool for measuring water velocity and volume in aquatic ecosystems, designed to deliver rigorous data in rivers, estuaries, and plankton studies at any depth.

The 2030 series mechanical flowmeter is an indispensable precision instrument for researchers and professionals dedicated to studying water dynamics in nature. Its hydrodynamic design, equipped with a pin and lanyard system, ensures perfect alignment with the current, eliminating errors caused by turbulence. Whether determining the volume of water filtered in plankton nets or mapping velocity in canals and harbor entrances, this device provides a reliable direct reading through its six-digit counter, operating optimally even under full immersion and continuous flow conditions.

Key Features

• High-Precision Rotors: Available in versions for slow and fast waters, adapting to various natural environments.
• Continuous Data Logging: Six-digit counter records every rotor revolution for an exact distance calculation.
• Dynamic Alignment: Balanced suspension system that keeps the instrument correctly oriented toward the fluid flow.
• Scientific Grade Construction: Polycarbonate body and Armalloyed stainless steel shafts resistant to corrosion in fresh or salt water.
• Depth Versatility: Free-flooding design that allows operation without pressure limits in deep water columns.

• Specifications
• In the Box
• Optional Items
• Documents

• Model	2030 Series (Mechanical)
  Data Readout	6-digit counter (000000 to 999999)
  Resolution	10 counts per rotor revolution
  Speed Range (Standard Rotor)	10 cm/sec to 7.9 meters/sec
  Speed Range (Low-Speed Rotor)	6 cm/sec to 100 cm/sec
  Maximum Count Capacity	Approximately 14.5 nautical miles
  Body Material	Polycarbonate
  Shaft Material	Armalloyed stainless steel
  Impeller Material	Celcon (Standard) / PVC (Low-speed)
  Dimensions (Length)	21.3 cm (8 3/8”)
  Standard Rotor Diameter	6.98 cm (2 3/4”)
  Low-Speed Rotor Diameter	16.5 cm (6 1/2”)
  Weight in Air	225 grams
  Weight in Water	113 grams
  Depth Rating	Unlimited (Free flooding)
  Maximum Operating Temp	60°C (140°F)

• • 1x 2030 Series Mechanical Flowmeter
  • 1x Universal bridle
  • 1x Rotor (Standard or low-speed according to order)
  • 1x User manual
• • Extension handle (extends up to 8 feet)
  • 3-point connection ring
  • PVC low-speed impeller
  • Direct readout adaptor
• • Flowmeter User Manual (English)

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