Dwyer RHPLC-2N22 is a humidity/temperature transmitter with a drift of <0.25% RH/year. It operates in a temperature range of -40 to 140°F (-40 to 60°C) and requires a power supply of 10 to 35 VDC for 4 to 20 mA or 0 to 5 VDC output. The response time is 8 s (π63) and it features a capacitive polymer sensor for humidity measurements. The enclosure is made of polycarbonate and it has screw terminal block electrical connections. The accuracy for temperature readings varies depending on the type of sensor used, with the best accuracy being ±0.3°C @ 0°C (±0.54°F @ 77°F). The RH accuracy is ±2% 10 to 90% RH @ 25°C.