DC 300V 50A Digital Voltmeter Ammeter DC VOLT AMP Tester Gauge With Red and Green Led No Shunt With Back Cover 0.39 "LED

Technical Parameters Supply voltage non isolated meter DC3 5 30V wide range Note The maximum input voltage can not exceed 30V otherwise it will be burnedIsolation meter isolated power supply meter DC8 18VOperating Current 20mADisplay 0 39 LED voltage red Current GreenDimensions 704030 mmInstallation hole 6838 mmMeasurement rate 500mS timesAccuracy 1 1 word Extreme working conditions Min supply voltage 3 5VMax supply voltage 30VWorking temperature 10 65Operating Humidity 10 80 non condensing Working pressure 80 106kPaSunlight no direct exposure Power meter Two line socketThin Black Line Header supply NegativeThin Red line Header supply positive Note voltage between red and black lines cant exceed 30V Test side Three line socketCOM Test CommonV Test positive voltage inputA Test positive current input check the drawing before install or it will burn Because the header by co design which means the earth wire of test and power supply is interlinked so only can be connected to between the negative power supply and the negative of the tested device We recommend to link the yellow line and the black lines together to prevent outside interference caused by digital ammeter flashing Package included 1 xDigital Voltmeter Ammeter