Latest Instruments from ExTech

Great news! Pay attention to state-of-the-art Extech instruments with unique technologies (included or combined), manufactured to meet all your needs. Here is a list of the latest products with a short description.

1. Compact Handheld Water Quality and Environmental Meters 

Extech’s new Water Quality/Environmental meters measure Dissolved Oxygen, Conductivity, TDS, pH, Temperature, and Humidity. They are compact in size with a large dual LCD display and auto power off feature to save battery life, making them perfect for field or home use. These portable meters are easy-to-use, precise, and economically priced to meet your budget!

DO210 model

This compact handheld Dissolved Oxygen Meter takes quick measurements of Dissolved Oxygen or % Oxygen plus Temperature in water. The device comes with easy to replace membrane caps, electrolyte, and a soft case.


  • Municipal Wastewater/Sewage Treatment
  • Environmental water testing
  • Aquaculture/Aquariums
  • Natural stream purification system
  • Boilers
  • Biochemical manufacturing
  • Beverage manufacturing


  • Measures Dissolved Oxygen and % Oxygen plus Temperature
  • Automatic Temperature Compensation via temperature probe sensor built into polarographic type oxygen probe
  • Adjustable Altitude and Salinity Compensation
  • Min/Max and Data Hold functions
  • Auto Power Off with the disable feature
  • Complete with DO probe with membrane and 39" (1m) cable, two spare replacement membranes, electrolyte, 9V battery, and soft case
DO210 Compact Dissolved Oxygen Meter


2. EN510 10-in-1 Environmental Meter

It is a convenient 10-in-1 Environmental Meter measuring Air Velocity, Air Flow, Air Temperature, Type K Temperature, Heat Index, Humidity, Wet Bulb, Dew Point, Windchill, and Light Level. Includes built-in low friction ball bearing mini vane wheel, a precision photodiode with cosine and color correction filter, and a capacitive humidity sensor for high accuracy. The Type K input accepts standard Type K Thermocouple probes to measure surface temperature up to 2372°F (1300°C). Features a large dual LCD with backlighting, Data Hold, and Min/Max function.

EN510 10-in-1 Environmental Meter

3. SDL470 UVA/UVC Light Meter/Datalogger

The SDL470 includes two types of probes: one to measure UVA (long wave 365nm) and the other to measure UVC (short wave 254nm) light sources up to 20mW/cm2. This meter features a cosine correction filter, data logging to Excel format, offset adjustment for relative measurements, type K/J thermocouple input for temperature measurements (probe sold separately), record/recall modes, min and max readings, data hold plus auto power off with the disable function.

SDL470 UVA-UVC Light Meter-Datalogger

4. CG304 Coating Thickness Tester with Bluetooth

This Coating Thickness Tester offers a non-destructive way to measure the thickness of ferrous and non-ferrous substrates with auto-recognition of the material being measured. The tester’s memory stores 2500 readings. The Unique Bluetooth interface feature wirelessly transmits data to your PC for further analysis and to generate a documented report. A special LCD with the backlit feature and contrast allows easy viewing in various lighting conditions.

CG304 Coating Thickness Tester with Bluetooth

5. 461920 Mini Laser Photo Tachometer Counter

It allows you to take RPM (photo/contact) and Linear Surface Speed measurements. There is a narrow beam Laser photo tachometer for accurate non-contact RPM measurements up to 4.9ft (1.5m) from the target for improved safety and accessibility.

461920 Mini Laser Photo Tachometer Counter

6. CO240 Handheld Indoor Air Quality, Carbon Dioxide (CO2) Meter

The device measures Carbon Dioxide (CO2), Air Temperature, and Humidity, and also calculates Dew Point and Wet Bulb. The user-settable alarm with audible beeper is perfect for conducting a quick check of CO2 level to help adjust the environmental conditions in an enclosed area, such as a greenhouse or nursery.

CO240 Handheld Indoor Air Quality, Carbon Dioxide (CO2) Meter

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