Triplett RHT415-NIST Hygro-Thermometer With Remote Probe (-10 ~ 60°C; 0 ~99%RH; With Cert of Traceability to N.I.S.T)

Air Temperature: 14 to 140°F (-10 to 60°C)

Air Temperature Accuracy: ±1.8°F / ±1°C

Relative Humidity: 0 to 99%RH

Humidity Accuracy: ±4%RH

Comfort Level Bargraph:

Dry (Red): <40%RH

Comfortable (Green): 40 to 70%RH

Wet (Blue): >70%RH

Power: 2 AA Batteries

Dimensions: 4.4 x 4 x 0.9" (112 x 102 x 23mm)

Weight: 8oz (227g)

Datasheet

Manual