Resistive humidity sensor trusens srhr 233c esi enclosed humidity sensor 30 to 90 rh humidity 1 9 to 920k resistance 3 rh hysteresis 60s response time 0 c to 60 c 50hz to 1khz frequency 1 4v ac supply voltage miniature sensors whose ac resistance decreases as relative humidity rises they consist of an rh sensitive material deposited on a ceramic substrate which offers high sensitivity and reliability in a small package choice of resistance with terminations set at 5 08mm pitch sui