... ,Input channel1 input channelOperation methodCount-up, Count-downOutput modeN, F, R, CReset / ZeroManually reset, Automatically delay reset, External switch resetData retainOver ... 85~265VAC (50/ 60Hz) SMPSPower dissipation≤ 5WWork conditionTemperature :-10~50°C Humidity ≤85% no caustic or magnetic field interference