DC Solar Meter Digital Voltage Meter Voltmeter DC 0-600V

1 x Dimension: 48*29*21 mm 1 x mounting hole: 45.5*26.5mm 1 x Power Supply: DC3.3-30V 1 x Power Consumption: <20mA 1 x Test voltage: DC0~/600V 1 x Display mode: 0.56 “LED with red/blue/green digits 1 x Measurement accuracy: 1% (± 2 digits) 1 x Measurement rate: ≥ 500mS / time Features: 1x with three wires, the wiring is simple, the installation is convenient. 1x when there is a small tolerance, you can calibrate by the potentiometer on the circuit board. 1x with polarity protection function for meter power supply. Connection Method: 1x With three wires, can be connected to cars,e-bikes or motorcycles. 1x  Red wire: Power supply Positive terminal 1x  Black wire: Public Negative terminal （Power supply and test negative terminal） 1x  Yellow wire: Testing terminal