0.28 inch 3-wire Digital DC Voltmeter Head Digital Display Adjustable Three-wire DC0-100V Battery Voltmeter

Description The voltmeter is small only 0 28 inches range DC DC0 100V 3 wire genericproducts to break the routine voltmeter is the latest design can work directly on 5V 9V 12V 24V and other circuits without regulation With three wiring easy access to car battery car motorcycle car line with reverse polarity protection function line reversed not burn Used to monitor battery voltage grasp the battery voltage state it can also be used for other products voltage measurement applications Specifications Display method 0 28 LED red blue green yellow3 wire working voltage 4 0 40V with reverse connection protection function 3 wire detection voltage 0 0 100VWorking voltage 30mAMeasuring rate 200mS timeMeasurement accuracy 3 Low working voltage 2 4VHigh working voltage 40VOperating temperature 10 65°CWorking humidity 10 80 no condensation Working pressure 80 106kPaSunlight No direct exposurePackage Include 1 Digital DC Voltmeter