Digital VoltmeterDigital Voltmeter its function is to output standard voltage transfer signal using CPU operation electric network’s parameter,Website: ,such as voltage and then A/D’s conversion.Main technical specification1、Accuracy Class： 0.5F·S±1 class2、Display Digit：4 3、Reference Input：AC /AV：0～5A/0～500V   volts D.C.：0～199.9V   0～1000V4、Power consumption：≤3W5、Working power：AC85～242V,50HZ6、Working circumstance：0～50℃,relative humidity≤85％,without corrode and electric radiationPanel board and connection 1、Panel board