Extech WB200 Wet Bulb Hygro-Thermometer Datalogger

Extech WB200 Wet Bulb Hygro-Thermometer Datalogger


The Extech WB200 is ideal for greenhouses, paint booths, food processing, and other environmentally sensitive locations.


  • Two thermistors provide fast and accurate readings
  • Built-in fan provides fast response time
  • Datalogger stores 100 records
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This instrument combines traditional dry/wet bulb operation with modern electronic circuitry to provide accurate readings and trouble-free operation, especially in dusty environments. Audible and visual alarms alert when temperature and humdity level is higher or lower than the user programmed high/low set points. The dual color LED indicator will flash green for datalogging and red for alarm mode. The LCD displays wet bulb, dew point, air temparature readings, and relative humdity.


Two thermistors provide fast and accurate readings, and a built-in fan provides fast response time. User programmable datalogging sampling rate ranges from 15 seconds to 60 minutes in 5 minute increments.The datalogger can store 100 records that can easily be recalled on the meter display. The WB200 also features water and dust resistant contsruction, maximum/minimum function, and low battery indicator.

Notable Specifications:
  • Temperature range: 41°F to 122°F /5°C to 50°C
  • Relative humidity range: 0.0 to 99.9%RH
  • Resolution: 0.1°F/°C and 0.1%RH
  • Basic accuracy: ±1°F/±0.6°C; ±3%RH
  • Dimensions: 2.8 x 3.1 x 7.0” (71 x 78 x 177mm)
  • Weight: 8.0oz (250g)
  • Display update rate: 120 seconds
What's Included:
  • (1) Datalogger
  • (4) AAA batteries
  • (1) 100-240V universal AC adaptor
Image Part # Product Description Price Stock Order
Extech WB200 Wet Bulb Hygro-Thermometer Datalogger WB200 Portable hygro-thermometer with wet bulb and dew points temperature readings
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