1.power:DC5V timer 2.High accuracy 3.CE & ISO9001 digital hour meter Specification:Power supply: DC5V,DC12V,DC24V,AC9V,AC12V,AC110V,AC220V optionalOperating temperature: 0~50Relative humidity: 20%~80%Dimension: (W) 79mm X (H) 42.5mm X (D) 25.5mm ModelFull rangeResolutionAccuracyClear modeXL5155S99999S0.02Hz1SManual or automaticXL5155S-19999.9S0.2Hz100mSManual or automaticXL5155S-2999. ...