Digital Voltmeter DC 10A Red Blue Green LED Amp Panel Car Current Monitor Tester 4.5-30v Voltage Meter

                                              1.Product attributes

Specification:

Remark:     

       1,This voltmeter's wiring is simple,it only need to connect two wires,the red wire is to connected to positive pole,the black wire is to connected to negative pole. There is protection when the wires  aren't correctly connected,the electric circuit won't be bumed.

      2,This voltmeter doesn't need external drive working power,it can work with measuring voltage,the working  voltage's  range is 4.5-30V.

      3,To reach the best measurement accuracy,this voltmeter will automatically move the decimal point's  position  according to the different measuring voltage. When it measures the voltage below 10V,it  will display two places after decimal point. When it measures the voltage above 10V,it will display one   place after decimal   point.

     4,This voltmeter can be used to measure the storage battery's voltage in motorcycles and cars and  also can grasp the storage battery's status. It also can be used to measure other voltage.  

Red line : Power Supply +,Measure Voltage +,(4.50-30.0V DC)

Black line: Power Supply -, Measure Voltage-