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Extech WB200
Wet Bulb Hygro-Thermometer Datalogger

  • Audible and visual alarm alerts
  • LCD displays Wet Bulb, Dew Point, and Air Temperature readings and Relative Humidity
  • Two thermistors provide fast and accurate readings
  • Built-in fan provides fast response time
  • Datalogger stores100 records that can easily be recalled on meter display
  • Water and Dust resistant construction
  • Maximum/Minimum function
  • Low battery indicator
  • Complete with four AAA batteries and 100-240 V Universal AC adaptor
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Product Information
Datasheet 100 KB PDF
Manual 143 KB PDF
Click here for Information Regarding PDF'sPDF Help
The Extech WB200 Portable Hygro-Thermometer with Wet Bulb and Dew Point Temperature readings. The Extech WB-200 combines traditional dry/wet bulb operation with modern electronic circuitry to provide accurate readings and trouble-free operation especially in dusty environments. For hanging or bench-top use, the Extech WB 200 is ideal for greenhouses, paint booths, food processing, and other environmentally sensitive locations.
Temperature readings 41°F to 122°F /5°C to 50°C
Relative Humidity 0.0 to 99.9% RH
Resolution 0.1°F/°C and 0.1% RH
Basic accuracy ±1°F/±0.6°C; ±3% RH
Display update rate 120 seconds
Dimensions 2.8 x 3.1 x 7.0” (71 x 78 x 177 mm)
Ordering Information
Model  Description Buy Online Price
WB200 Extech WB200 Wet Bulb Hygro-Thermometer Datalogger Buy Now Sale $94.59
(Reg. $109.99)
Included Accessories
  • 1- Product Manual
  • 1- Universal AC adaptor
  • 4- AAA Batteries

*NOTE: Items ordered with optional NIST calibration will require
approximately 10 days to complete the certification.