Products

EcoBailer Disposable Bailers for Water Sampling

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Designed to sink quickly without creating turbidity in the well sample, the EcoBailer Pro features...

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Ecología-Humana: Una Propuesta Bioética

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The human-ecology is a moral metaphor speaking of the close relationship between human beings and...

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Ecology 6th Edition

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This ecology book offers outstanding pedagogy, organizing each chapter around Key Concepts and Learning Objectives...

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Ecology of Climate Change: The Importance of Biotic Interactions

$ 59.50 USD

Rising temperatures are affecting organisms in all of Earth's biomes, but the complexity of ecological...

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Ecology of North American Freshwater Fishes

$ 75.00 USD

The North American freshwater fish fauna is the most diverse and thoroughly researched temperate fish...

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Econarrative: Ethics, Ecology, and the Search for New Narratives to Live By

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Econarratives are all around us, describing and shaping human interactions with other species and the...

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Ecosystem-Based Fisheries Management: Progress, Importance, and Impacts in the United States

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Ecosystem-based fishery management (EBFM) is rapidly becoming the default approach in global fisheries management. The...

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Ecotek Ultralight Inflatable Mattress with Panal Design FlexCell Contorneado

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Edaphic Scientific Data Loggers

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ES-SYS-0

is a basic entry-level option that can measure a limited number of analog and digital sensors.

It has a built-in modem where data can be accessed over the internet through the Eagle online platform.

There is also an option for manual data download to Excel using free software.

ES-SYS-1

is a more advanced but entry-level option that can measure a limited number of analog and digital sensors.

Data can be downloaded manually, with a USB cable and a laptop, or remotely through the INTELIMAX modem and the EAGLE.IO data management software platform.

ES-SYS-2

The ES-SYS-2 is an advanced high-quality option that can measure a moderate number of analog and digital sensors.

Data can be downloaded manually, with a USB cable and a laptop, or remotely through the INTELIMAX modem and the EAGLE.IO data management software platform.

ES-SYS-3

is a comprehensive high-level option that can measure multiple analog and digital sensors. The ES-SYS-3 is ideal for supporting a large number of analog sensors through a multiplexer system.

Data can be downloaded manually, with a USB cable and a laptop, or remotely through the INTELIMAX modem and the EAGLE.IO data management software platform.

Highlighted Features

• Continuous long-term environmental research and monitoring
• Suitable for terrestrial, marine, indoor, or laboratory environments
• Option to download data over the internet
• Comes preprogrammed, wired, and ready to use

Applications

• Agriculture and horticulture
• Marine sciences and aquaculture
• Mines and landfills
• Hydrology and groundwater
• Rivers and streams
• Buildings and green roofs
• Greenhouse gases and fluxes

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

• • Features
    Ref	ES-SYS-0	ES-SYS-1	ES-SYS-2	ES-SYS-3
    Analog Sensors:	4 voltages or 4..20mA	6 single-ended or 3 differentials	16 single-ended or 8 differentials	48 single-ended or 24 differentials
    Digital Sensors:	6 to 12 SDI-12	20 SDI-12	100+ SDI-12
    Implexx Sap Flow Sensors:	up to 6	up to 12	20+
    Solar Panel Regulator	built-in		external solar panel
    Wi-Fi and Ethernet	N/A	available	available (Ethernet)
    Modem	integrated	available

• • Data Logger (1)
  • Manual
• • Tripod
• • None

EO20231104

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Edna Lead Acid Battery 12V 8AH

$ 237.00 USD

Reliable Power for Your eDNA Sampler with the 12V 8Ah Lead-Acid Battery

Optimize your sampling equipment's performance with this durable and rugged battery, specifically designed for the eDNA Sampler.

The 12V 8Ah lead-acid battery is the ideal power source for operating environmental DNA sampling systems such as the eDNA Sampler. With a robust and reliable build, this battery provides the capacity and stability needed for extended field sampling. Compatible with various eDNA Sampler configurations, it ensures efficient operation even under demanding conditions.

Key Features:

• Standard 12V Output: Ideal for portable environmental sampling equipment like the eDNA Sampler.
• 8Ah Capacity: Sufficient for extended sampling sessions.
• Lead-Acid Technology: Proven and reliable for field environments.
• Compact Design: Easy to transport and install in portable equipment.
• Full Compatibility: Designed to seamlessly integrate with multiple eDNA Sampler system configurations.

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

• Specification	12V 8Ah Lead-Acid Battery
  Voltage	12V
  Capacity	8Ah
  Chemistry	Lead-acid
  Weight	5.05 lb

• • 12V 8Ah lead-acid battery
• • eDNA Sampler Backpack Combo
  • eDNA Sampler Combo
  • 12V lead-acid battery charger
• • Additional 12V battery charger
  • Padded carrying case

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eDNA Sampling Kit for Citizen Science

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Accurate and Efficient eDNA Sampling for Citizen Scientists

Simplify the collection of environmental DNA samples with a portable, reliable, and easy-to-use system—ideal for collaborative and citizen science projects.

The eDNA Citizen Scientist Sampler is designed to facilitate field collection of environmental DNA (eDNA) samples by non-specialist collaborators. Its compact and fully integrated system allows high-quality sample capture quickly and accurately. With all essential components included, this sampler is ideal for participatory science programs where data consistency and reliability across multiple geographic locations are critical.

Key Features:

• Compact and Portable Design: Easy to transport and ship, ideal for distributed and remote projects.
• High-Precision Sampling: Ensures reliable and consistent results in diverse field conditions.
• User-Friendly: Designed for use by volunteers and citizen scientists with no prior experience.
• Everything Included: Battery, charger, hoses, and vacuum bottle ready for immediate use.
• Compatible with Custom Filters: Option to include eDNA filter packs tailored to your project.

• Specifications
• In the Box
• Optional Items

• Item	Description
  Power source	Rechargeable lithium or lead-acid battery
  Vacuum capacity	2-liter bottle with integrated vacuum system
  Connection kit	Durable and reusable sampling hoses

• • 1 Lithium or lead-acid battery
  • 1 Battery charger
  • 1 Hose kit
  • 1 2-liter vacuum bottle
• • Custom eDNA filter pack

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eDNA Sampling Transect Pole ²⁵

$ 985.00 USD

The Trident pole for eDNA sampling is designed for mobile eDNA collection. Three filter clamps...

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Effects of Climate Change on Insects: Physiological, Evolutionary, and Ecological Responses

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Anthropogenic climate change is the defining environmental challenge of this century, posing an existential threat...

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Eijkelkamp Analysis System to Measure Soil Oxygen Content

$ 4,795.00 USD $ 5,110.00 USD

With the Soil oxygen content analysis system you carry out a soil gas analysis easily and quickly with the help of a needle probe and an oxygen content meter, without the need for drilling.

• Measure soil contamination without the need for complicated drilling.
• The meter allows you to measure up to 0% O2.
• Immediately shows the living conditions of the roots.

This robust system consists of a short soil probe and an oxygen content meter. The probe is pushed into the soil manually. Once at the right depth the probe is lifted slightly to open it. Subsequently the oxygen content meter is connected to the probe and with the aid of a bellows, soil gas is sucked through the meter and the O2 content is measured, which is an important growth parameter for trees and plants.

The probe has a small dead volume, so that a measurement can be taken accurately within a few minutes. The meter allows measurements up to 0% O2 content.

The oxygen content meter works with an electrochemical cell. This cell has a limited service life (about 1.5 years), but can be easily calibrated with air (21%) and with an oxygen-free gas (natural gas, nitrogen).

Note: Please note that the meter requires regular renewal of the O2 sensor.

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

• • Specifications
    Cable Length	1 m
    Range	0 - 25% volume
    Calibration	Oxygen
    Detection Method	Electrochemical sensor
    Response Time	Within 6 seconds
    Sampling Method	Hand aspirated
    Batteries	9 Volt transistor type
    Operating Hours	Approx. 30
    Operating Temperature	-12 to +45 °C
    Weight	11 lb

• • Soil probe
  • Oxygen content meter
  • Inclusive filter set
  • Including shoulder strap
  • Manual
• • 9v battery
• • None
• • User Manual (English)

EO20231603

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Eijkelkamp Beeker Sediment Core Sampler

$ 6,921.00 USD

The Beeker type sediment sampler is rod-operated and has a closable cutting head and piston. This sampler is used for high accuracy sampling of very soft to medium hard sediment layers. A standard and extended set are available.

With the Beeker sampler, you can take undisturbed sediment samples in a fast and certain way from watery sediment to unconsolidated sand to a depth of 5 metres. Even in watery conditions, the sample will not be lost thanks to the closable cutting head. Using additional extension rods, sampling to greater depths is possible in certain cases. The Beeker sediment core sampler works almost the same way as a Multisampler / piston sampler, but with a lockable head with inflated membrane.

Key Feactures

• Takes samples fast and certain
• Sample can be emptied into clean stainless-steel bucket, or layer by layer in wide necked sample jar
• Soil profile description and classification
• Contaminant free stainless steel body
• Possible to hammer the sampler

Method

The samples are taken in a transparent tube which allows you to make a clear profile description. The sampler has long sampling tubes of 1 metre. The piston can be operated directly with a rod, so that the sample can be pushed out of the sampler on site into a sample bucket. The apparatus is pushed or hammered into the sludge. To avoid compaction of the layers, a piston is held at a stationary position relative to the sludge. The sample can then be emptied into a clean stainless-steel bucket, or layer by layer in wide necked sample jar. It is not necessary to assemble and disassemble the apparatus with every new sample. This set comes in an aluminium transport case.

Extended set

In addition to the standard set (04.23.SA), an extended set (04.23.SB) is also available for sampling and discharging core samples with a length of 1 metre or 1.5 metres, in bucket or jars and to transport and divide in subsamples with water pressure. This set is suitable for sampling of submerged soils to a depth of 5 metres from very aqueous sediments to unconsolidated sand.

Applications

• Soil profile description and classification
• Environmental soil research
• Undisturbed sampling
• Geohydrological research
• Sediment sampling

Note: If you have any questions, please contact one of our experts.

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

• • Características
    Connection	Screw thread
    Sampling Diameter	57 mm
    Maximum Sample Depth	5-8 m
    Product Material	Stainless steel, iron, PVC, other material
    Power Supply	Manual
    Sampler Position	Vertical
    Sample Length	1 m
    Sample Stored in	Tube PVC transparant (ø 63 x 57 mm)
    Tube Length	1 m, optional 1.5 m
    Sample Volume	2.4 - 3.5 l
    Package Size	146 x 62 x 54 cm
    Weight	57 kg

• • Transparent tube of 1 metre
  • Piston + piston rod
  • Battery powered pressure
  • Vacuum pumps with extension hose
  • Hammer
  • Handles
  • Extension rods
  • Non-stretch cord
  • Sample bucket
  • Brush and accessories
  • Aluminium transport case
  • Manual
• • None
• • None
• • User Manual (English)

EO 20230727

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Eijkelkamp Granular Composition Test Set

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Granular composition test set, complete with electromagnetic sieve shaker and standard set of sieves for dry and wet sieving. Suitable for the determination of the particle size distribution of soil samples.

Particle size distribution determination with our granular composition test set helps to classify the soils on the basis of international standards. The set contains:

• Electromagnetic sieve shaker that can hold up to 8 sieves
• Set of stainless-steel wire mesh sieves of 200 mm diameter, with different apertures

The electromagnetic sieve shaker keeps the sample in continuous motion, for the best possible sieving results and accurate determination of the granular composition. The sieve shaker and the stainless steel mesh sieves (including receivers and lids) are suitable for both wet and dry sieving.

Outstanding Features

• Suitable for wet and dry sieving
• Determine particle size distribution
• Continuous motion for best sieving results
• Complete set to analyse coarse fractions of soil samples

Note: The granular composition test set is used to analyse coarse fractions of soil samples. To perform a complete analysis or the grain-size of soil samples, the hydrometer set, for smaller fractions, is needed as well.

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

• • Características
    Measuring Range	0,063 micron - 8 mm
    Sample Specification	Disturbed
    Sieves Diameter	200 mm
    Sieves Height	50 mm
    Sieve Openings	0,063 mm, 0,090 mm, 0,125 mm, 0,180 mm, 0,250 mm, 0,355 mm, 0,500 mm, 0,710 mm, 1,0 mm, 2,0 mm, 4,00 mm, 8 mm
    Power Supply	Line voltage
    Voltage	240V 50Hz
    Weight	130 lb

• • (1) Granular composition test set
  • Manual
• • None
• • Hydrometer set
• • User Manual (English)

EO20232103

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Eijkelkamp Penetrologger with GPS and Soil Moisture Probe

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The Royal Eijkelkamp penetrologger is a versatile instrument for in-situ measurement of soil penetration resistance. This electronic penetrometer comes with a built-in datalogger and memory for up to 1500 measurements.

This lightweight penetrologger of Royal Eijkelkamp is ergonomically designed and can measure up to a depth of 31.4 inch (80 cm). The penetrologger is used to measure the penetration resistance of the soil. The penetration resistance is a means to determine the carrying capacity of the soil and the ease with which roots can grow through the soil. This is important in agricultural, farming, and civil engineering techniques.

With the built-in data logger, the data is easily stored for further processing on your PC. The penetrologger contains an accurate internal GPS system (16 channels GPS receiver) to determine the exact measuring location. The coordinates stored in the penetrologger can be linked to a location or map using software (or less accurately via the Internet). The penetrologger results are displayed in MegaPascals (MPa) and Newtons (N) as a function of depth. The penetrologger also derives the Cone Index (CI).

Outstanding Features

• Incorporated fast GPS, data is auto-stored
• Traffic ability or load bearing capacity research
• No mechanical parts, strong and reliable
• Numerous different projects can be defined
• Geotechnical soil research

Applications

• Agricultural- as well as the civil engineering sector and technical soil research
• General soil science research
• Trafficability or load bearing capacity research
• Foundation technology
• The detection of compacted (possibly impermeable) sub-soil layers
• Checking whether or not the soil is suitable for agricultural use

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

• • Characteristics
    Angle of cone	60 °
    Battery life	8 hours
    Cone surface range	1, 2, 3.3, 5 cm²
    Data output	.txt, other
    Data plug type	RS232
    Data storage capacity	1500 measurements
    Data transfer	Cable
    International Protection Rating	54
    Maximum Applicable pressure	10000 kPa
    Maximum measuring depth	31.4 inch
    Maximum operating temperature	50 °
    Measuring accuracy	± 1%
    Measuring range	0...10000 kPa
    Minimum operating temperature	0 °
    Product material	Stainless steel, iron, PVC, other material
    Programming possibility	Yes
    Reading accuracy	0,1%
    Registration type	Logging
    Package size	23.6 x 11.8 x 9.4 inch
    Weight	34.1 lbs

• • Penetrologger body (1)
  • 4 different cones
  • probing rods (2)
  • Battery charger (1)
  • RS232 cable + adapter RS323 to USB
  • Depth reference plate (1)
  • Cone check (1)
  • Penetroviewer software, downloadable below
  • Driver software for converter cable
  • Accessories
  • Rugged transport case
  • Manual
• • None
• • Soil Moisture Sensor
• • User Manual (English)
  • EData Sheet (English)

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Eijkelkamp Soil Moisture Sensor

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Characteristics Measuring range: 5-55% Accuracy: 5% Resolution: 1% Output signal: 0-1 Vdc Measuring pens material:...

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Emil du Bois-Reymond: Neuroscience, Self, and Society in Nineteenth-Century Germany

$ 38.00 USD

Emil du Bois-Reymond is the most important forgotten intellectual of the nineteenth century. In his...

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EMS Band Dendrometer DRS26 for Large Trees from 12 in

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EMS Band Dendrometer DRS26 for Large Trees from 30 cm

Precisely Monitors Radial Tree Growth With Fast Detup for Research and Forestry Applications

The EMS DRS26 band dendrometer is a digital sensor that accurately measures the circumferential increment of large tree trunks with micrometer precision, without affecting their natural growth. Its non-invasive design and high resolution make it ideal for studies of plant growth, water stress, and environmental response.

Features

• Precise digital measurement with sub-micrometer resolution.
• Non-invasive installation that does not affect tree growth.
• No upper limit on trunk diameter.
• SDI-12 digital output for easy integration with monitoring systems.
• Low maintenance and energy requirements.
• 64 mm measurement range for circumferential growth.
• Provides data on growth, water stress, and trunk freezing.
• Compatibility with different tree diameters by changing the base plate.

Non-Invasive Tape Fixing System

The EMS DRS26 dendrometer uses a tape fixing system (D RL 26 C) that does not damage the tree or affect its natural growth. This innovative method:

No effect on tree growth Integrated value for the entire radial profile at the measured height Almost identical thermal expansion of wood and stainless steel

Complex Dendrometric Data

Dendrometer data Efficient tool for field measurement Includes information on growth, water stress, and trunk freezing Low maintenance and energy requirements compared to sophisticated systems like sap flow Together with soil water potential measurement, it provides a realistic picture of water stress and tree response

SDI-12 Data Output Asynchronous serial communications protocol for intelligent microprocessor-based sensors. The sensor typically takes a measurement, performs calculations based on the raw sensor reading, and outputs the measured data in engineering units. It allows the connection of a set of sensors in series on a cable line. For more information, visit the SDI-12 website. Measure trees with different diameters by simply changing the base plate.

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

• Output	SDI-12 version 1.3
  Circumferential Increment Measurement Range	64 mm
  Linearity	1% of full scale
  Resolution	1μm
  Internal Temperature Accuracy	± 0.2 °C
  Protection Grade	IP68
  Weight	350 g
  Operating Temperature	–40 to 60 °C
  Operating Humidity	0 to 100%
  Fixing	Non-invasive by tape

• • EMS DRS26 Dendrometer
  • Base plate (model according to purchased version)
  • Non-invasive fixing system
  • User manual
• • SDI-12 compatible data acquisition system
  • Connection cables (not included, depend on configuration)
• • Additional base plates for different tree diameters
  • Complementary weather stations
  • Additional soil water potential sensors
• • Datasheet (English)
  • Product Technical Sheet (English)
  • Update for small diameters (English)

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Encyclopedia of Dinosaurs: The Sauropods

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Sauropods form one of the three great groups of dinosaurs. They roamed the planet for...

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Encyclopedia of Dinosaurs: The Theropods

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You are likely familiar with the most famous theropods, such as the mighty T. rex...

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Endangered Places: Disappearing Sites around the World

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Discover the existential threats facing 50 unique places across the globe and the possible solutions...

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Endangered Species: A Reference Handbook

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A detailed exploration of the variety of threats that endangered species are facing around the...

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Energizer 9-Volt Lithium Batteries

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Energizer, 9-volt lithium battery, provides up to 10 years of backup power in AC-powered smoke...

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Energizer AA Ultimate Lithium Batteries

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Energizer Ultimate Lithium L91 Batteries - Superior Performance and Extended Life

The best option for high-consumption devices with advanced lithium technology

Guaranteed long-lasting performance! In a world where high-tech devices demand exceptional power, Energizer Ultimate Lithium batteries stand out by redefining battery life. It's time to play and power your moments, memories, and life! Energizer Ultimate Lithium batteries are not only the longest-lasting in high-tech devices but also store more energy than traditional alkaline batteries. They even offer up to 25% more life than Energizer MAX batteries! Their leak-proof construction and full functionality in extreme temperatures make Ultimate Lithium batteries perfect for your most critical devices, whether for work, play, or home.

Main Features

• Extended life: Up to 20 years of shelf life.
• Extreme temperature resistance: From -40°C to 60°C.
• Lightweight: 33% lighter than standard alkaline batteries.
• Universal compatibility: Works in any AA device.
• Superior performance: Ideal for high-power-demand devices.

• Specifications
• Documents

• Specifications
  Classification	Primary Cylindrical Lithium
  Chemical System	Lithium/Iron Disulfide (Li/FeS2)
  Designation	ANSI 15-LF, IEC-FR14505 (FR6)
  Nominal Voltage	1.5 Volts
  Storage Temperature	-40°C to 60°C (-40°F to 140°F)
  Operating Temperature	-40°C to 60°C (-40°F to 140°F)*
  Typical Weight	15 grams (0.5 oz.)
  Typical Volume	8.0 cubic centimeters (0.49 cubic inches)
  Maximum Discharge	2.5 continuous amps, 4.0 amps pulses (2 sec on / 8 sec off)
  Lithium Content	Less than 1 gram
  Typical Internal Resistance	120 to 240 milliohms (depending on method)
  Service Life	25 years at 21°C
  Certifications	Tested per ANSI-19 C18.3M
  Discharge Profile	Constant Current and Power with Discharge to 0.8 Volts
  Temperature Effects	Capacity varies with temperature (-40°C to 60°C)
  Applications	Remote controls, radios, clocks, CD/games, digital audio, portable lighting, personal care, digital cameras, toys
  Notes	All data shown was tested at 21°C, unless otherwise noted. Typical features only; no implied warranty offered.

• • Technical datasheet (English)

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Energy Science: Principles, Technologies, and Impacts

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Energy Science successfully integrates social, economic, and environmental considerations with an accessible, quantitative approach to...

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England's Rare Mosses and Liverworts: Their History, Ecology, and Conservation

$ 40.00 USD

This is the first book to cover England's rare and threatened mosses and liverworts, collectively...

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Enthos Butterfly Bait Trap -Disccontinued

$ 85.25 USD

These butterfly bait traps fit easily into backpacks for field trips. They are lightweight, .68...

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Enthos Winkler Trap, 3 Tanks -Dsicontinued

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Three mesh bags placed inside a cylinder of waterproof fabric that ends in a plastic...

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Ento Sphinx Bottom Collector for Slam Malayse Trap

$ 178.95 USD

The bottom collector is made to fit with our SLAM trap(26.66). The SLAM trap then...

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Ento Sphinx Extra Hard Forceps 0.4 mm

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Ento Sphinx Laminated Telescopic Poles for Entomological Nets

$ 60.00 USD

These poles made in the Czech Republic are made to the highest quality for the best performance in the field. Does not include the net neither the frame.

For you to select the preferred length for your work, its maximum extension is indicated, eg. 89 cm and in parentheses the smallest size is indicated when closed (24 cm / 6S), and the sections that the telescopic support has, that is, a 6S support has six sections or pieces that extend and collect.

This product needs the net and frame to use and thus assemble your entomological net.

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

• - Telescopic laminated support.
  - M6 screw for optimal grip.
  - 110 cm telescopic supports include a lock against angular rotation.
• - Telescopic Support
• - Nets and Frames for Entomological Nets
• - Custom Entomological Net Case

(DR 20220826)

Hama, Telescopic Support, Jama, Jamas, net, hoop, hamas, entomological net, entomological nets

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Ento Sphinx Slam Malayse Trap

$ 477.88 USD

SLAM - from the acronym the Sea, Land, and Air - is Malaise Trap that...

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Ento Sphinx Standard Nets and Frames for Entomological Nets

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Nets of high quality with folding net frame from steel wire. Require Ento Sphinx Laminated Telescopic Poles...

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Entomological Dissection Kit x 5 u.

$ 103.75 USD

Designed for middle to high school and college level dissection. Contains all the necessary tools...

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Entomological Tray Boxes x 10 units - Discontinued

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Cardboard boxes to avoid direct handling of collection specimens. Ideal for organizing insects into taxonomic...

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Entomological Triangle Punch - Discontinued

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Triangle Punch for Insects The Enthos Triangle Punch is the Perfect Tool for Creating 3x13...

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Entomology Specimen Cabinet Model 401 ²⁵

$ 2,456.50 USD

Designed for the proper and permanent protective storage of insect collections. These all-metal cabinets are...

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Entomology Specimen Cabinet Model 402 ²⁵

$ 3,192.95 USD

Designed for the proper and permanent protective storage of insect collections. These all-metal cabinets are...

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Entos Sphinx Malaise Traps Townes Style ²⁵

$ 125.50 USD

Malaise traps are widely used in biodiversity surveys because they efficiently trap a wide range...

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Environment

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Object Lessons is a series of short, beautifully designed books about the hidden lives of...

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Environmental Winds: Making the Global in Southwest China

$ 27.95 USD

Environmental Winds challenges the notion that globalized social formations emerged solely in the Global North prior...

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Eowpower 50ml Plastic Vial Storage Container Test Tubes for Laboratory Lab x 30 pcs

$ 20.00 USD

Material: High transparency PP. Apply to loading solid,powder, seeds, pills, granular objects, etc. Each capacity:...

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Essential Entomology

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Comprising well over half of all known animal species, insects are the most successful organisms...

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Essential World Atlas

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With superbly crafted maps covering the entire globe, this new edition of Oxford's Essential World...

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Estwing Geological Hammers with Pike Point

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The Estwing Pointed Tip Rock Pick has a bonded and molded Shock Reduction Grip®, which...

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Evolution and Human Sexual Behavior

$ 39.95 USD

Few things come more naturally to us than sex - or so it would seem....

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