digital counter with output relay 1.power:DC5/12/24V AC220/110V 2.with the output relay 3.can set the alarm value digital counting meter Specification:Model: XL5155JMax count:99999Digit display:5digit (99999)Signal input: On-off signal or high-low levelSignal output: Relay outputRelative humidity: 20%~80%Dimension: (W)79X(H)42.5X(D)25.5mm XL1001J99999±0.01%+1 digitXL1002J99999±0.01%+1 ...