【Protection Design】Reverse Polarity Protection: The meter won't burn out if reverse polarity is applied, but the screen will display nothing
【Precision Display】Three Digit Voltmeter Display Red Panel the decimal point is automatically shifted.; Display Color: Red
【Very Easy To Use】Small in size and light in weight,quite easy and convenient to carry out. easy for installing and connecting. no power supply required, two wire connection
Description
Display color: Blue Three-wire Measurement range: DC 3~30V Working Current: