ENVIROMUX-STHSB-D Temperature/Humidity/Dew Point Sensor, DIN MountedProduct Datasheet Temperature Humidity Dew Point Sensor, DIN Mounted Applications from 4 to 185 F ( 20 to 85 C) and 0 to 90% relative humidity. High resistance to external influences on the cable due to digital output signal. Temperature accuracy: 0. 90 F ( 0. 50 C) for 4 to 14 F ( 20 to 10 C). 0. 72 F ( 0. 40 C) for 14 to 185 F ( 10 to 85 C). Humidity accuracy: 0 to 80% relative humidity, 3% 80 to 90% relative humidity, 4% Supports dew point