Triplett RHT52-NIST Psychrometer + IR Thermometer (-20 ~ 60°C, 10 ~ 90%RH)

Air Temperature: -4 to 140°F (-20 to 60°C)

Air Temperature Accuracy: ±(2% + 2°F / 1°C)

Relative Humidity: 10 to 90%RH

Humidity Accuracy: ±2%RH

Type K Temperature: -148 to 2501°F (-100 to 1372°C)

Type K Accuracy: ±(3% + 4°F / 2°C)

Infrared Temperature: -58 to 932°F (-50 to 500°C)

Infrared Accuracy: ±2% or ±4°F / ±2°C

Wet Bulb: -6.88 to 140°F (-21.6 to 60°C)

Dew Point: -90.4 to 140°F (-68 to 60°C)

Resolution: 0.1°F/°C; 0.1%RH

Power: 9V Battery

Dimensions: 10.1 x 3 x 2" (257 x 76 x 53mm)

Datasheet

Manual