Extech

Digital Sound Level Meter Extech 407730

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Extech 407730 Sound Level Meter for Accurate Noise Level Measurements

Monitor Environmental Noise with Professional Accuracy and Easy Operation

The Extech 407730 Sound Level Meter measures sound pressure levels from 40 to 130 dB with an accuracy of ±2 dB. Its digital display provides 0.1 dB resolution and features a fast-response analog bar graph for real-time monitoring. Users can select either A or C frequency weighting to suit different measurement applications. The Max Hold function captures the highest reading, making it ideal for environmental, industrial, HVAC, occupational safety, and laboratory noise assessments. The meter includes a microphone windscreen and four AAA batteries for immediate operation.

Key Features

• Measures sound pressure levels from 40 to 130 dB with ±2 dB accuracy.
• Digital display with 0.1 dB resolution for precise readings.
• Fast-response analog bar graph for real-time sound monitoring.
• Selectable A and C frequency weighting for multiple applications.
• Max Hold function captures the highest measured value.
• High-quality 12.7 mm (0.5 in) condenser microphone.
• AC analog output for external recording or analysis.
• Selectable Fast or Slow response times.
• Includes microphone windscreen to reduce wind interference.
• Powered by four 1.5 V AAA batteries.
• CE certified for safety and quality compliance.

• Specifications
• In the Box
• Documents

• Microphone	12.7 mm (0.5 in) Condenser
  Frequency Weighting	A, C
  Basic Accuracy	±2 dB
  Measurement Range	40 to 130 dB
  Maximum Resolution	0.1 dB
  Analog Output	AC
  Response Time	Fast / Slow
  Power Supply	4 × 1.5 V AAA Batteries
  Certifications	CE
  Dimensions	230 × 57 × 44 mm (9 × 2.2 × 1.7 in)
  Weight	160 g (5.6 oz)

• • 1× Extech 407730 Sound Level Meter
  • 1× Microphone Windscreen
  • 4× AAA Batteries
  • 1× User Manual
  • 1× Traceable Calibration Certificate with Complete Data and Uncertainty Values
• • User Manual (English)

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Dual Input Thermometer Extech

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Extech 421502 Dual Input J/K Digital Thermometer

High-Precision Thermometer with Dual Display, Programmable Alarms, and Differential Temperature Measurement

The Extech 421502 is a high-precision digital thermometer designed for demanding field applications and industrial environments requiring rigorous temperature monitoring. This dual-input instrument delivers an exceptional basic accuracy of 0.05% and supports simultaneous Type J and Type K thermocouples. Its rugged housing is protected by a durable protective holster with an integrated stand, making it ideal for continuous diagnostics in HVAC systems, manufacturing processes, and material quality control.

The instrument features a large dual LCD display that simultaneously shows individual readings from each channel (T1 and T2), the differential temperature (T1 - T2), and elapsed time. The 421502 includes advanced analysis functions such as MIN/MAX/AVG recording, Data Hold, Relative mode, and programmable audible high and low temperature alarms that immediately notify users whenever preset limits are exceeded.

Key Features

• Exceptional measurement accuracy with a basic accuracy of 0.05% for reliable and stable temperature readings.
• Complete differential temperature analysis using two Type J, two Type K, or a combination of both thermocouple types.
• Large dual LCD display with elapsed timer for simultaneous monitoring of T1, T2, and T1-T2 differential.
• Programmable audible High and Low temperature alarms for improved process monitoring.
• Advanced statistical functions including MIN/MAX/AVG, Data Hold, and Relative measurement mode.
• Heavy-duty protective holster with an integrated tilt stand for convenient hands-free operation.

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

• Basic Accuracy	0.05%
  Inputs	Dual Input, Simultaneous Type J and Type K
  Included Probe Range (Type K)	-20 to 250 °C (-4 to 482 °F)
  Functions	MIN/MAX/AVG, Data Hold, Relative Mode, Differential Temperature (T1-T2), Elapsed Time
  Alarms	Programmable Audible High and Low Temperature Alarms
  Power Supply	1 × 9V Battery

• • 1x Extech 421502 Dual Input J/K Digital Thermometer

• None: Ready to Use!

• • 9V Battery
• • User Manual (English)
  • Datasheet (English)

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Extech 12-Channel Data Logger Thermometer TM500

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The TM500 is a 12-channel data logging thermometer. This data logging thermometer features 6 types of thermocouples (J, K, E, T, R, S). It displays CH1 to CH8 or CH9 to CH12 on the screen, and data can be recorded from all 12 channels simultaneously on an SD card in Excel format for later analysis.

Key Features

• Simultaneously displays CH1 to CH8 or CH9 to CH12.
• Stores 99 readings manually and readings from 65.6 ft via included 2GB SD card.
• Records readings with date and time stamp in Excel format for further analysis.
• User-programmable sampling frequency from 1 to 3600 seconds.
• Min/Max, data hold, auto-off.

Wide Range The versatile Extech TM500 thermometer is designed to take temperature measurements using six different types of thermocouples (J, K, E, T, R, S), allowing the user to measure temperatures ranging from -148 to 2372 °F (-100 to 2602.0 °F).
	Simultaneous Readings The TM500's large display shows CH1 to CH8 or CH9 to CH12 at any given time. Although not all at once on the screen, all 12 readings can be recorded in excellent format (with date and time) on the included SD card.
Highly Functional The easy-to-use indoor/outdoor TM500 thermometer features user-programmable sampling rates (1 to 3600 seconds) to suit the current application. Additionally, the device's internal memory can store 99 readings, a real benefit when the included SD card is full.
	Accurate Readings The TM500 digital thermometer uses offset settings for zero function or when taking relative measurements.

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

• • Technical Specifications (English)
• • 12-Channel Data Logger
  • 6 Thermocouple Types (J, K, E, T, R, S)
  • AA Batteries (8)
  • Type K Temperature Probes (12)
  • 2GB SD Card
  • Carrying Case
  • Manual
• • None
• • Temperature Sensors
  • Temperature Probe
• • User Manual (English)
  • Technical Specifications (English)

EO2023603

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Extech 42280A Temperature and Humidity Data Logger

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Extech 42280A Temperature and Humidity Data Logger

High-Precision Environmental Monitoring with Storage for up to 48,000 Readings, USB Connectivity, and Automatic PDF Report Generation for Scientific Research and Conservation

The Extech 42280A is an advanced data logger specifically designed for continuous monitoring of environmental conditions in scientific research, natural resource management, and ecosystem conservation. This high-precision portable instrument simultaneously measures temperature, relative humidity, and dew point, displaying all information on an easy-to-read triple LCD with integrated date and time stamps. Its expanded internal memory stores up to 24,000 readings per parameter (48,000 total readings), making it ideal for long-term environmental monitoring in the field, laboratories, museums, archives, greenhouses, or biological sample storage facilities.

Equipped with an integrated USB interface, the logger functions as a self-contained USB drive with built-in configuration software, allowing users to export analytical reports with detailed graphs directly in PDF or Excel format when connected to a PC. It also features configurable visual and audible alarms that immediately notify users whenever environmental conditions exceed preset limits, helping protect valuable biological resources, research projects, and sensitive environmental monitoring applications.

Key Features

• Triple LCD simultaneously displays relative humidity, temperature, date, and time.
• Continuous and accurate monitoring of essential environmental parameters.
• Configurable audible and visual alarms notify users when measurements exceed preset thresholds.
• Stores up to 48,000 total readings (24,000 temperature and 24,000 humidity readings) with time and date stamps.
• Direct export of analytical reports with graphs and statistics in PDF or Excel format when connected to a PC.
• Flexible configuration through the built-in keypad or PC software.

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

• Model / Version	Standard Model	NIST Model (Traceable Calibration Certificate)
  Temperature Measurement Range	-30 °C to 70 °C (-22 °F to 158 °F) *Note: Logger operates down to -20 °C (-4 °F)	-30 °C to 70 °C (-22 °F to 158 °F) *Note: Logger operates down to -20 °C (-4 °F)
  Basic Temperature Accuracy	±0.5 °C (±0.9 °F)	±0.5 °C (±0.9 °F)
  Maximum Temperature Resolution	0.1 °C / °F	0.1 °C / °F
  Relative Humidity Range	0 to 100% RH	0 to 100% RH
  Basic Humidity Accuracy	±3% RH (10 to 90% RH)	±3% RH (10 to 90% RH)
  Maximum Humidity Resolution	0.1% RH	0.1% RH
  Dew Point Calculation	0 °C to 50 °C (32 °F to 122 °F)	0 °C to 50 °C (32 °F to 122 °F)
  Sampling Rate	Selectable: 30 s, 5 min, 10 min, 30 min, 60 min, 90 min, 120 min	Selectable: 30 s, 5 min, 10 min, 30 min, 60 min, 90 min, 120 min
  Memory Capacity	24,000 temperature readings and 24,000 humidity readings	24,000 temperature readings and 24,000 humidity readings
  Power Supply	4 × 1.5 V AA batteries (or optional 9 V AC adapter)	4 × 1.5 V AA batteries (or optional 9 V AC adapter)
  Operating Conditions	-20 °C to 70 °C (-4 °F to 158 °F); <90% RH non-condensing	-20 °C to 70 °C (-4 °F to 158 °F); <90% RH non-condensing
  Dimensions	12.07 × 8.89 × 3.81 cm (4.75 × 3.5 × 1.5 in)	12.07 × 8.89 × 3.81 cm (4.75 × 3.5 × 1.5 in)
  Weight	0.163 kg (5.7 oz)	0.163 kg (5.7 oz)
  Certifications	CE	CE / NIST Traceable Calibration Certificate
  Warranty	2 years (6 months for cables and sensors)	2 years (6 months for cables and sensors)

• • 1× Extech 42280A Temperature and Humidity Data Logger
  • 1× Windows-compatible configuration software
  • 1× USB connection cable
  • 1× Universal AC power adapter
  • 4× 1.5 V AA batteries
• • AA batteries
• • Humidity Calibration Kit
  • 9 V AC Power Adapter

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Extech Dual Laser IR Video Thermometer VIR50

$ 550.00 USD

The VIR50 is a 3992°F (2200°C) Digital Laser Video IR Thermometer which features a 2.2" color TFT LCD display and built-in VGA (640 x 480) Camera. Includes a MicroSD card for capturing images (JPEG) and video (3GP) for viewing on your PC. Dual lasers indicate the ideal measuring distance (approximately 50 inches) where the two laser points converge to a 1" target spot. Comes with microSD card, general-purpose Type K bead wire probe, USB cable, rechargeable 3.7V battery, carrying case, and user manual.

• Non-contact IR Temperature measurement from -58 to 3992°F (-50 to 2200°C) with 50:1 distance to target ratio.
• Built-in VGA (640 x 480) Camera.
• MicroSD card for capturing images (JPEG) and video (3GP) for viewing on your PC.
• Dual laser indicates ideal measuring distance where the two laser points converge to a 1" target spot.
• Fast 150 millisecond response time, color LED bargraph for viewing trends.
• Type K Thermocouple input, USB interface.
• Air Temperature and Relative Humidity measurement.
• Adjustable emissivity increases measurement accuracy for different surfaces.
• Adjustable High/Low set points with audible alarm alerts user when temperature exceeds the programmed set points.
• MAX/MIN/AVG/DIF functions, Auto Power Off.
• Complete with microSD card, general purpose Type K bead wire probe, USB cable, rechargeable 3.7V battery, and carrying case.

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

• Specifications	Range
  Laser Convergence Distance	50" (127cm)
  IR Temperature Range	-58 to 3992°F (-50 to 2200°C)
  Repeatability	±0.5% or 1.8°F/1°C
  Basic Accuracy	±(1% of rdg + 4°F/2°C) (31 to 212°F)
  Max resolution	0.1°F/°C
  Emissivity	0.10 to 1.00 Adjustable
  Field of View (Distance to Target)	50:1
  Type K Temperature Range	-58 to 2498°F (-50 to 1370°C)
  Air Temperature Range	32 to 122°F (0 to 50°C)
  Relative Humidity	0 to 100%RH
  LCD Display	2.2" TFT 320 x 240 pixels
  Camera	640 x 480 pixels
  Dimensions	7.4x6.0x2.2" (189x152x57mm)
  Weight	17.4oz (494g)

• • Thermometer (1)
• • None
• • 3.7V Li-Ion Rechargeable Battery
• • Datasheet (English)
  • User’s Manual (English)
  • Manual de Usuario (Español)
  • Manual do Usuário (Português)

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Extech EA10 EasyView Dual Input Thermometer

$ 154.99 USD

Basic Type K Thermometer with wide temperature range. EA10 is an EasyView Dual Input Thermometer....

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Extech EA11A Easy View Type K Single Input Thermometer

$ 104.99 USD

Thermocouple thermometer with dual LCD display and memory function. EA11A is an easyview Type K...

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Extech Four-Channel Thermometer SD Logger SDL200

$ 429.70 USD

Extech SDL200 Precision 4-Channel Thermometer and RTD Data Logger

Capture and analyze critical temperature data with an advanced 4-channel system that exports directly to Excel, ensuring seamless monitoring for complex environmental and industrial applications.

The Extech SDL200 is a professional-grade monitoring solution designed to provide deep insight into thermal dynamics across diverse environments. By supporting six different thermocouple types and dual RTD probes, this versatile logger allows researchers to track four distinct channels simultaneously or focus on differential temperature changes (T1-T2). Whether you are monitoring delicate forest soil temperatures, industrial heating processes, or aquatic habitats, the SDL200 simplifies data management by logging up to 20 million readings directly onto an SD card in an Excel-ready format. Its user-programmable sampling rate and real-time clock ensure that every fluctuation is captured with precision, making it an indispensable tool for long-term field studies and laboratory analysis.

Key Features

• Multi-Channel Versatility: Supports 4-channel logging with thermocouples (J, K, E, T, R, S) and 2-channel logging with RTD probes.
• Effortless Data Management: Logs data directly to a 2GB SD card in Excel format for easy PC transfer without specialized software.
• Massive Storage Capacity: Capable of storing 20 million readings with real-time date and time stamps for long-term monitoring.
• Differential Analysis: Displays individual readings for all channels or the differential value (T1-T2) for relative temperature tracking.
• Programmable Sampling Rate: Allows users to set data capture intervals from 1 second to 3600 seconds to fit specific project needs.
• Advanced Measurement Tools: Features Min/Max tracking, Data Hold, and an offset adjustment for high-accuracy zero functions.

• Specifications
• In the Box
• Documents

• Model	Extech SDL200
  Type J Range	-100 to 1150 °C (-148 to 2102 °F)
  Type K Range	-100 to 1300 °C (-148 to 2372 °F)
  Type T Range	-50 to 400 °C (-58 to 752 °F)
  Type E Range	-50 to 900 °C (-58 to 1652 °F)
  Type R Range	0 to 1700 °C (32 to 3092 °F)
  Type S Range	0 to 1500 °C (32 to 2732 °F)
  RTD (Pt100) Range	-200 to 850 °C (-327 to 1562 °F)
  Resolution	0.1° / 1°
  Basic Accuracy (J, K, E, T, Pt100)	±0.4% of reading (+1 °C / +1.8 °F)
  Basic Accuracy (R, S)	±0.5% of reading (+1 °C / +2 °F)
  Data Logging Capacity	20 million readings (using 2GB SD card)
  Dimensions	182 x 73 x 47.5 mm
  Weight	600 g

• • 1x Extech SDL200 Temperature Data Logger
  • 4x K-Type bead wire temperature probes
  • 1x 2GB SD Card
  • 6x AA Batteries
  • 1x Hard carrying case
  • 1x User manual
• • Technical Specifications Manual (English)

(S 23/9/2020)

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Extech HD500 Psychrometer with Pyrometer ²⁶

$ 386.90 USD

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Extech Heavy Duty Hot Wire Anemometer

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Extech 407123 Reinforced Hot Wire Thermo-Anemometer

Extendable telescopic probe for accurate air velocity and temperature measurements in ducts, ventilation systems, and hard-to-reach locations.

The Extech 407123 Reinforced Hot Wire Thermo-Anemometer features a telescopic probe (extending up to 61 cm), making it ideal for measurements inside HVAC ducts, ventilation systems, and even for monitoring temperatures in nests and burrows. It simultaneously measures air velocity and temperature, displaying both readings on a dual LCD screen. Additional features include Data Hold and Min/Max recording modes. The instrument comes complete with a 167 cm (5.5 ft) telescopic probe cable and six AA batteries.

Key Features

• Telescopic probe is ideal for measurements in HVAC ducts, ventilation systems, and other small openings. It can also be used to measure temperatures in nests and burrows.
• Probe extends up to 2.1 m.
• Measures airflow up to 1200 m/min.
• Extra-large 36 mm dual LCD display.
• Min/Max and Data Hold functions.

• Specifications
• In the Box
• Required Items
• Documents

• Air Velocity (m/s)	0.2 to 20 m/s (Resolution: 0.1 m/s, Accuracy: ±3%)
  Air Velocity (m/min)	12.1 to 1200 m/min (Resolution: 0.3 m/min)
  Air Velocity (mph)	0.5 to 45 mph (Resolution: 0.1 mph)
  Air Velocity (Knots)	1.0 to 38.8 knots (Resolution: 0.1 knots)
  Air Velocity (km/h)	0.7 to 72 km/h (Resolution: 0.1 km/h)
  Temperature (°F)	32 to 122 °F (Resolution: 0.1°, Accuracy: ±1.5 °F)
  Temperature (°C)	0 to 50 °C (Resolution: 0.1°, Accuracy: ±0.8 °C)
  Power Supply	6 AA batteries
  Dimensions	17.8 × 7.4 × 3.3 cm (178 × 74 × 33 mm)
  Weight	0.0014 kg (1.4 g)

• • 1x Extech 407123 Reinforced Hot Wire Thermo-Anemometer
  • 1x Telescopic Probe with 167 cm (5.5 ft) Cable
  • 6x AA Batteries

• None: Ready to use!

• • User Manual (English)
  • Datasheet (English)

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Extech Hygro Thermometer InfraRed Thermometer.

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This combination moisture meter plus infrared thermometer features a large backlit LCD display with primary and secondary displays. The main display is user selectable for IR or humidity; The secondary always shows the ambient temperature. The infrared thermometer has a built-in laser pointer and an 8:1 distance to target ratio. Data hold and MAX, auto power off. Complete with 9V battery and carrying case.

Featured Features:

• Combined moisture meter plus infrared thermometer with laser pointer.
• Non-contact infrared thermometer with 8:1 distance to target ratio.
• Large backlit dual LCD display.
• The main display is user selectable for IR or humidity.
• Secondary always displays the ambient temperature.
• Data hold and MAX, auto power off.

• Specs
• In the box
• Required Items
• Optional Items

• Specs	Ranks	Maximum Resolution	Basic Accuracy
  Humidity	10% a 95%	0,1%	± 3.5%
  Infrared Temperature	-50 a 500 ° C	0,1 °	± 2% 2 ° C
  Air temperature	-20 a 60 ° C	0,1 °	± 2 ° C
  Emissivity	0,95
  Field of view	8: 1
  Dimensions	150 x 75 x 40 mm
  Weight	200 g

• • Extech Thermo-Hygrometer and Infrared Thermometer (1)
  • Case (1)
  • Drums 9V (1)
• • None
• • None

(DR 20220818)

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Extech Hygro-Thermometer/Datalogger SDL500

$ 463.75 USD

Optimize Humidity and Temperature Measurement with the Extech SDL500

The Extech SDL500 is a temperature and humidity data logger designed for professionals who need accuracy and convenience in environmental data collection.

This device records humidity, temperature, dew point, and wet bulb readings onto an SD card in Excel format. It is ideal for monitoring environmental conditions and conducting detailed analysis.

Key Features:

• Large dual backlit LCD display.
• Stores up to 20 million readings with a 2G SD card.
• Compatible with type K/J thermocouples for high-temperature measurements.
• Min/Max, Data Hold, and Auto Power Off functions.

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

• Specification	Details
  Dew Point	-25.3 to 48.9 °C (-13.5 to 120.1 °F)
  Maximum Dew Point Resolution	0.1°
  Memory	20M data records with 2G SD card
  Relative Humidity	5% to 95%
  Basic Relative Humidity Accuracy	±3%
  Maximum Relative Humidity Resolution	0.1%
  Temperature (Air)	0 to 50 °C (32 to 122 °F)
  Basic Temperature Accuracy (Air)	±1 °C (±1.8 °F)
  Maximum Temperature Resolution (Air)	0.1°
  Temperature (Type J)	-100 to 1200 °C (-148 to 2192 °F)
  Basic Temperature Accuracy (Type J)	±(0.4% + 1 °C/1.8 °F)
  Maximum Temperature Resolution (Type J)	0.1°
  Temperature (Type K)	-100 to 1300 °C (-148 to 2372 °F)
  Basic Temperature Accuracy (Type K)	±(0.4% + 1 °C/1.8 °F)
  Maximum Temperature Resolution (Type K)	0.1°
  Temperature (Type N)	±(0.4% + 1 °C/1.8 °F)
  Basic Temperature Accuracy (Type N)	0.1°
  Wet Bulb	-21.6 to 50 °C (-6.9 to 122 °F)
  Maximum Wet Bulb Resolution	0.1°
  Certifications	CE
  Dimensions	182 × 73 × 47.5 mm (7.2 × 2.9 × 1.9 in)
  Power Supply	6 × AA batteries (1.5V)
  Weight	655 g (23.1 oz)

• • Extech SDL500 Thermo-Hygrometer/Data Logger
  • SD Card
  • 6 × AA Batteries (1.5V)
  • Carrying Case
  • Humidity/Temperature Probe
  • User Manual
• • AA Batteries
• • Carrying Case
  • CR2032 Batteries
• • User Manual (English)
  • Technical Specifications (English)

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Extech MO210 Moisture Detector ²⁶

$ 137.25 USD

MO210 Pocket Moisture Meter

Portable digital hygrometer with sharp pin electrodes, designed for the fast and accurate assessment of moisture levels in wood and porous building materials.

The Extech MO210 pocket moisture meter is an essential diagnostic tool for investigators, field inspectors, and professionals tasked with environmental monitoring and structural resource management. This compact device allows for the immediate evaluation of whether wood, stabilized soil, or various porous components have suffered water intrusion or unwanted moisture accumulation—factors that can compromise structural integrity or promote microorganism growth. Its operation is extremely simple and intuitive: just insert the sharp pin electrodes into the material's surface to obtain a direct reading of its physical-chemical condition.

Thanks to its integrated selection switch, the instrument adapts its measurement principle based on the substrate being analyzed. In the building materials mode (such as sheetrock, wallboards, concrete, mortar, and plaster), the device accurately detects moisture levels within a range of 0.2% to 2.4%. By sliding the selector to the wood function, the portable meter calibrates its parameters to determine moisture concentrations from 6% to 44%. This versatility makes it indispensable field equipment for conservation projects, natural material optimization, and biological control in green buildings or botanical warehouses.

Key Features

• Dual operating mode optimized for wood and porous building materials.
• Replaceable sharp pin electrodes that ensure optimal surface penetration.
• Fast-reading digital display for real-time water intrusion diagnostics.
• Ergonomic pocket design with a safety cap for maximum field portability.

• Specifications
• In The Box
• Optional Items
• Documents

• Building materials range	0.2% to 2.4%
  Wood range	6% to 44%
  Measurement principle	Electrical resistance (pin electrodes)
  Power supply	3x CR-2032 button cell batteries
  Data sheet	Technical Specifications (English)

• • 1x MO210 Pocket Moisture Meter
  • 1x Protective Electrode Cap
  • 1x Spare Pin Set
  • 3x CR-2032 Button Cell Batteries
  • 1x Instruction Manual
• • Additional Replacement Pins
• • User Manual (English)
  • Technical Specifications (English)

EO20231503

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Extech SD700 Pressure, Humidity and Temperature Data Logger ²⁶

$ 466.00 USD

Extech SD700 Pressure, Humidity and Temperature Data Logger

Accurate Instrument for Environmental and Scientific Monitoring

The Extech SD700 is a multifunctional device designed to monitor and record key environmental parameters such as barometric pressure, relative humidity, and temperature. With the ability to store data on an SD card, this instrument allows for detailed analysis and easy transfer of information. It is ideal for laboratories, industrial environments, and weather stations. The SD700 is compact and robust, ensuring reliable performance even under demanding conditions.

Key Features

• Accurate measurement of barometric pressure, relative humidity, and temperature.
• Real-time data logging to an SD card for subsequent analysis.
• Large, easy-to-read LCD display.
• Flexible configuration with adjustable sampling intervals.
• Portable and durable design, suitable for a variety of applications.

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

• Specifications
  Barometric Pressure Range	10 to 1100 hPa
  Temperature Range	-5 to 50°C
  Relative Humidity Range	10 to 95%
  Pressure Accuracy	±1.5 hPa
  Temperature Accuracy	±0.8°C
  Humidity Accuracy	±3% RH
  Memory	SD Card
  Power Supply	6 AA Batteries
  Dimensions	132 x 92 x 32 mm
  Weight	400 g

• • 1x Extech SD700 Data Logger
  • 6x AA Batteries
  • 1x User Manual
• • None
• • AC Power Adapter
  • SD Cards
• • User Manual (English)

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Extech UV510 UVA Light Meter ²⁶

$ 221.00 USD

Extech UV510 UVA Light Meter

The Extech UV510 UVA Light Meter is an essential tool for measuring UVA light radiation from natural and artificial light sources. This portable device is perfect for professionals who require precision and ease of use in their ultraviolet light measurements.

The Extech UV510 measures UVA light radiation with superior accuracy, offering a dual backlit display and a cosine-corrected sensor. With two selectable ranges and additional features such as minimum and maximum value recording, screen hold, and automatic shutdown, this meter becomes a versatile and reliable tool. Its compact design, accompanied by a wrist strap, makes it easy to transport and use anywhere.

Highlighted Features

• Dual Backlit Display: Provides clear and easy data readings.
• Cosine-Corrected Sensor: Ensures measurement accuracy under different light incidence angles.
• Two Selectable Ranges: Adapt to different levels of UVA light intensity.
• Zero Function: Allows resetting measurements for more precise results.
• Minimum and Maximum Value Recording: Facilitates tracking variations in UVA light intensity.
• Screen Hold: Allows freezing the reading on the screen for later review.
• Automatic Shutdown: Saves energy by automatically turning off the device when not in use.
• Compact Design: Its small size and wrist strap make it easy to use and transport.

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

• Variant 1
  

• Specifications

  GENERAL SPECIFICATIONS
  Basic UVA Accuracy	±4% full scale
  Maximum UVA Resolution	0.001 mW/cm²
  UVA	0 to 1.999 mW/cm², 2 to 20.00 mW/cm²
  ADDITIONAL DETAILS
  Power Supply	3 × AAA batteries (1.5V)
  Certifications	CE-NIST
  Dimensions	14.1 × 5.8 × 2.5 cm (5.5 × 2.3 × 1 inches)
  Weight	160 g (5.6 ounces)

• • Extech UV510 UVA Light Meter
  • Manual
• • Rechargeable AAA Batteries
• • Case
  • CR2032 Batteries
• • Technical Specifications (English)

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Extech Video Particle Counter with Built-in Camera VPC300

$ 2,123.75 USD

VPC300 Video Particle Counter

6-channel environmental particle counter with color TFT LCD display, built-in camera for photo and video recording, and NIST-traceable calibration certificate.

The Extech Instruments Model VPC300 Video Particle Counter is an advanced diagnostic and environmental monitoring scientific instrument, essential for indoor air quality (IAQ) assessment, cleanroom verification under ISO standards, and filtration system optimization in conservation and environmental protection projects. Equipped with an internal controlled-flow pump and an isokinetic probe, this field device allows for the precise quantification of airborne particulate matter concentration (such as dust, smoke, mold spores, and chemical byproducts) that alter the balance and comfort of enclosed ecosystems and biological research laboratories.

One of the most innovative features of the VPC300 is its built-in 320 x 240 pixel camera, which captures JPEG images and 3GP videos of the exact sampling points. This visual evidence directly correlates with the collected physical data, facilitating the precise localization of airborne pollution sources. The meter features a 74 MB internal memory capable of storing up to 5,000 full records and 20 minutes of video, externally expandable via a Micro-SD card. Thanks to the included PC software, researchers can download the collected information through the USB interface to process statistical data and structure professional analytical reports based on historical pollution profiles.

Beyond particle analysis, this comprehensive measurement equipment simultaneously monitors critical climate variables such as air temperature and relative humidity, automatically calculating dew point and wet bulb temperature values. These metrics are fundamental in environmental studies, as the combination of high relative humidity and temperature drops serves as a predictive indicator for mold colony formation and the degradation of sensitive organic materials. Its 7.1 cm color TFT LCD display incorporates a color-coded alert scale (green for low counts, yellow for moderate levels, and red for hazardous concentrations), ensuring an immediate visual diagnosis during field assessments.

Key Features

• Simultaneous measurement and display of 6 independent channels of particle sizes (down to 0.3 µm).
• Built-in digital camera to capture photos (JPEG) and videos (3GP) with date and time stamps.
• Built-in meteorological sensors for direct readings of air temperature, relative humidity, dew point, and wet bulb.
• 7.1 cm color TFT LCD display with intuitive menus based on hotkeys.
• Programmable alarm range (Level Indication) with an environmental safety color code.
• Versatile counting modes including cumulative, differential, and concentration measurements for rapid assessments.
• Delivered fully tested and factory-verified with a NIST-traceable calibration certificate.
• Robust structure with a tripod mount option, optimized for continuous long-term logging.

• Specifications
• In The Box
• Optional Items
• Documents

• Technical Specifications
  Particle size channels	0.3, 0.5, 1.0, 2.5, 5.0, 10.0 µm
  Air flow rate	2.83 L/min (0.1 ft3/min) controlled by internal pump
  Counting efficiency	50% at 0.3 µm; 100% for particles > 0.45 µm
  Coincidence limit / loss	5% at 2,000,000 particles per 0.028 m3 (1 ft3)
  Particle counting modes	Cumulative, differential, and concentration
  Air temperature range	-25 to 60 °C (-14 to 140 °F)
  Dew point / wet bulb range	0 to 50 °C (32 to 122 °F)
  Relative humidity range	0 to 100% RH
  Temperature accuracy (Air / Dew Point / Wet Bulb)	± 0.5 °C (± 0.9 °F) from 10 to 40 °C (50 to 104 °F); ± 1.0 °C (± 1.8 °F) in other ranges
  Relative humidity accuracy	± 3.0% RH (40 to 60% RH); ± 3.5% RH (20 to 40% and 60 to 80% RH); ± 5.0% RH (0 to 20% and 80 to 100% RH)
  Instrument display	7.1 cm (2.8 in) color TFT LCD with 320 x 240 pixel resolution
  Internal meter memory	74 MB (up to 5,000 numerical records or 20 minutes of video)
  External expansion capacity	Micro-SD memory card slot up to 8 GB
  Power supply	7.4 V rechargeable lithium-ion polymer battery
  Battery life / autonomy	Approximately 4 hours of continuous use
  Estimated charge time	Approximately 2 hours with AC adapter/charger
  Operating conditions	0 to 50 °C (32 to 122 °F); 10 to 90% RH non-condensing
  Storage conditions	-10 to 60 °C (14 a 140 °F); 10 to 90% RH non-condensing
  Instrument dimensions	24.0 cm x 7.5 cm x 5.7 cm (240 x 75 x 57 mm / 9.4 in x 3.0 in x 2.2 in)
  Instrument weight	0.57 kg (570 g / 1.26 lbs)

• • 1x Model VPC300 Video Particle Counter
  • 1x NIST-traceable calibration certificate
  • 1x Universal AC adapter/charger with multi-plug options
  • 1x Mini-USB interface cable
  • 1x PC software on CD-ROM
  • 1x Field tripod for stable recording
  • 1x Zero-count filter for sensor purging
  • 1x 7.4 V rechargeable lithium-ion polymer battery
  • 1x Hard protective carrying case for safe transport
• • Micro-SD memory card (Maximum capacity 8 GB)
• • Technical Specification Manual (English)

(DR 20220830)

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Extech Waterproof Thermometer

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Extech 39240 Waterproof Pocket Digital Stem Thermometer

Portable Digital Thermometer for Measuring Temperatures in Solids and Frozen Liquids

The Extech 39240 is a waterproof digital stem thermometer featuring a compact pocket-sized design. Its easy-to-read digital display with 0.1° resolution provides accurate temperature measurements in both solids and frozen liquids. The 70 mm stainless steel probe offers excellent durability and convenient access to the measurement point. The instrument records maximum and minimum readings, includes a Data Hold function, and features automatic power-off to extend battery life. It is ideal for food service, scientific, and industrial applications.

Key Features

• Fast-response digital display with 0.1° resolution.
• Durable 70 mm stainless steel probe.
• Temperature measurement range from -40 to 392 °F (-40 to 200 °C).
• Data Hold, MAX/MIN recall, and Auto Power-Off functions.
• Pocket-sized design, ideal for portable and field applications.
• Includes one LR44 button-cell battery and a protective probe cover.

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

• Basic Temperature Accuracy (Contact)	±1 °C / ±2 °F
  Maximum Temperature Resolution	0.1 °F / °C
  Temperature Range (Contact)	-40 to 392 °F (-40 to 200 °C)
  Probe	2.75 in (70 mm) Stainless Steel
  Display	Segmented LCD
  Power Supply	1 × LR44 Button Cell Battery (1.5 V)
  Certifications	CE
  Dimensions	150 × 20 × 18 mm (5.9 × 0.8 × 0.7 in)
  Weight	20 g
  Warranty	2 Years

• • 39240 Waterproof Digital Stem Thermometer
  • LR44 Button Cell Battery (1.5 V)
  • Protective Probe Cover
• • No additional items are required for operation.
• • Replacement LR44 batteries.
  • Additional protective probe covers.
• • User Manual (English)

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Heavy Duty CFM Metal Vane Anemometer Extech 407113 ²⁶

$ 561.25 USD

Measure Airflow with Professional Accuracy with the Extech 407113 Heavy Duty Metal Vane Anemometer

Reliable readings of air speed, volume, and temperature in a single rugged device—ideal for demanding field or lab applications.

The Extech 407113 is a heavy-duty metal vane anemometer designed to deliver accurate measurements of air velocity, airflow (CFM/CMM), and temperature. Equipped with a large dual-readout LCD display (up to 9999), this instrument is ideal for technicians, engineers, and professionals who require precise data in industrial, HVAC, environmental, or lab settings. Its metal vane sensor mounted on a 3.9-foot cable offers enhanced durability and high-precision with minimal friction.

Key Features:

• Simultaneous display of air velocity or airflow and temperature on dual screen.
• Three airflow modes: instantaneous, 20-point average, and 2/3 total flow.
• High accuracy: ±2% air velocity with low-friction, heavy-duty vane sensor.
• Advanced functions: MIN/MAX, Data Hold, and Auto Power Off.
• Rugged construction: durable metal vane sensor with 1.2-meter cable.
• Flexible power supply: operates on 9V battery or AC adapter (optional).
• Includes hard carrying case, rubber holster with stand, and battery.
• CE and UL certifications for international compliance.

• Specifications
• In the Box
• Optional Items
• Documents

• Specification	Value
  Air Velocity (ft/min)	100 to 6890 ft/min
  Air Velocity (m/s)	0.5 to 35 m/s
  Air Velocity (km/h)	1.8 to 126 km/h
  Air Velocity (mph)	1.1 to 78.3 mph
  Air Velocity (knots)	1.0 to 68 knots
  Air Velocity Accuracy	±2% of reading
  Maximum Resolution	0.01 m/s; 1 ft/min
  Airflow (CFM)	0 to 999,900 CFM
  Airflow (CMM)	0 to 999,900 CMM
  Airflow Resolution	0.001 CFM/CMM
  Air Temperature	0 to 80°C / 32 to 175°F
  Temperature Accuracy	±0.8°C / ±1.5°F
  Power Supply	1 × 9V battery or optional AC adapter
  Dimensions	178 × 74 × 33 mm
  Weight	0.7 kg (1.6 lbs)
  Certifications	CE, UL

• • Extech 407113 Metal Vane Anemometer
  • Vane sensor with 3.9 ft (1.2 m) cable
  • 9V battery
  • Rubber holster with stand
  • Hard carrying case
• • Optional AC power adapter
  • Software and RS-232 cable for PC connection
• • User Manual
  • Datasheet

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Humidity and Temperature USB Datalogger Extech RHT10 ²⁶

$ 102.00 USD

Records up to 16,000 readings for each parameter.

The RHT10 datalogs Humidity and Temperature readings (up to 16,000 each) with user programmable sample rates from 2 seconds up to 24 hours for days, weeks and months. USB interface for easy setup and download. Dew Point indication via the included Windows software. User-programmable High/Low alarm thresholds for RH and temperature. Complete with 3.6-Volt Lithium battery, protective USB cap, mounting bracket, and Windows compatible software for analysis.

Features

• 32,000 readings (16,000 for each parameter: Humidity/Temperature).
• Selectable data sampling rate: 2s, 5s, 10s, 30s, 1m, 5m, 10m, 30m, 1hr, 2hr, 3hr, 6hr, 12hr, 24hr.
• Dew point indication via Windows® software (included).

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

• Specifications	Range	Resolution	Accuracy (%rdg+digits)
  Temperature	-40 to 158°F	0.1°F/°C	±1.8°F (14 to 104°F)
  			±3.6°F (-40 to +14 and 104 to 158°F)
  	-40 to 70°C		±1.0°C (-10 to 40°C)
  			±2.0°C (-40 to -10 and +40 to 70°C)
  Humidity	0 to 100%RH	0.1%RH	±3%RH
  Datalogging interval	2 seconds to 24 hours
  Memory	Temperature: 16,000 points; Relative Humidity: 16,000 points
  Dimensions	5.1 x 1.1 x 0.98" (130 x 30 x 25mm)
  Weight	1oz (20g)

• • Datalogger (1)
  • Batteries (2)
• • None
    
• • 3.6V Litium Batteries
• • Datasheet (English)
  • User’s Manual (English)
  • Manual de Usuario (Español)
  • Software Download

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Mini Thermo-Anemometer with built-in InfraRed Thermometer ²⁵

$ 330.50 USD

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Sound Calibrator Extech

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Extech 407744 and 407766 Sound Level Calibrators

Standard Acoustic Reference Systems with 94 dB and 114 dB Options for Precise Sound Level Meter Calibration in Bioacoustic Research and Environmental Monitoring.

The Extech Sound Level Calibrators (Models 407744 and 407766) are high-precision metrology instruments designed to ensure the accuracy and reliability of sound measurements in environmental monitoring, urban ecology, and bioacoustic research. Accurate calibration is essential for collecting dependable acoustic data from wildlife habitats, natural soundscapes, and industrial environments. These calibrators comply with the IEC 60942:1997-11 international standard, providing a stable and repeatable acoustic reference for demanding field and laboratory applications.

The series includes two models to accommodate different calibration requirements. The Model 407744 produces a fixed 1 kHz sine wave at 94 dB and features a dedicated LED battery status indicator for quick operational checks. The Model 407766 offers greater flexibility through a three-position switch that selects either 94 dB or 114 dB sound pressure levels, making it ideal for calibrating sound level meters used in environments with higher ambient noise. Both models are designed to fit standard 0.5 in (12.7 mm) and 1 in (25.4 mm) microphones, providing a secure acoustic seal for accurate calibration.

Key Features

• Standardized verification and calibration for maximum sound level meter accuracy.
• Compatible with standard 0.5 in (12.7 mm) and 1 in (25.4 mm) acoustic microphones.
• Produces a pure 1 kHz sine wave with less than 2% total harmonic distortion.
• Rugged, portable design with integrated LED indicators for battery monitoring.
• NIST-traceable calibration versions available for scientific, regulatory, and environmental auditing applications.

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

• 	Model 407744	Model 407766
  Frequency	1000 Hz (±5%)
  Sound Pressure Level	94 dB (±0.5 dB)	94 dB / 114 dB (±0.5 dB / ±1.0 dB)
  Total Harmonic Distortion (THD)	<2% at 94 dB
  Operating Temperature	0 to 50 °C (32 to 122 °F)
  Power Supply	Two 9 V Alkaline Batteries
  Power Consumption	Approximately 10 mA DC
  Dimensions	5 cm Diameter × 12.7 cm Length (2.2 × 5.6 in)
  Weight	0.34 kg (340 g / 0.75 lb)

• • 1× Sound Level Calibrator (Selected Model)
  • 2× Heavy-Duty 9 V Alkaline Batteries
  • 1× Calibration Screwdriver
  • 1× Hard Carrying Case

• None: Ready to Use!

• • 407744-NIST: NIST-Traceable Calibration Certification
  • 407766-NIST: NIST-Traceable Calibration Certification
  • Extech Sound Level Meters and Acoustic Measurement Instruments
• • Technical Datasheet (English)

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