Professional Thermohygrometer with NIST Traceable Calibration (WD-20250-21)

Digi-Sense®'s compact, hand-held Model WD-20250-21 thermohygrometer provides accurate measurements of wet bulb, dew point, humidity, and temperature readings for a wide range of applications and environments. This model’s ergonomic design and portability allow easy, one-handed operation. Meters offer quick mode selection, large backlit LCD displays of accurate temperature, dew point, and wet bulb readings. Units are ideal for usage in warehouses, storage areas, factories, HVAC, IAQ, and cleanrooms. Digi-Sense@reg;'s easy-to-use quick read-out is essential for inspections and spot checks. Meters are pre-calibrated to NIST-traceable standards* and ready to use.
  • For tough applications, superior protection is provided by light weight, double-molded heavy-duty housing
  • Accurate measurements anywhere
  • Thermistor (NTC) temperature sensor and integrated humidity
  • Good repeatability
  • °F or °C user-selectable readout
  • Min/Max readings and Hold function
  • Auto Power Off mode extends battery life
  • Basic accessories included: carrying case, batteries, and *NIST-traceable certificate with data and uncertainties
  • Includes one 9 V battery and hard carrying case.
  • R&D
  • HVAC
  • Industrial
  • Educational
  • Food Industry
  • Laboratory
Specifications WD-20250-21
RH Range (Min): 0%
RH Range (Max): 100%
Min Temperature :
-30 º C / -22 º F
Max Temperature:
100 º C / -212 º F
RH Range:
0 to 100%
RH Accuracy:
±2% from 40 to 60% RH
±3% from 20 to 40% RH and 60 to 80% RH
±4% RH from 0 to 20% RH and 80 to 100% RH
RH Resolution:
Temp Range:
-22 to 212°F (-30 to 100°C)
Temp Accuracy:
±1.8°F (1°C) from -4 to 140°F (-20 to 60°C)
±2.7°F (1.5°C) from -22 to -4°F (-30 to 19°C) and 140 to 212°F (60 to 100°C)
Temp Resolution:
-22 to 212°F (-30 to 100°C)
Wet Bulb:
32 to 176°F (0 to 80°C)
Response Time:
<15 sec
Data Logging:
CE Compliance:
One 9V battery
Backlit, dual, LCD
11-7/8" x 3" x 1" (30 x 7.5 x 5 cm)
Product Type:

Usually Ships in 3 to 5 Business Days
Item # Item Description Item Price Subtotal Qty
WD-20250-21 Thermohygrometer with NIST (WD-20250-21) $365.00 $0.00

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Usually Ships in 3 to 5 Business Days

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