Description New Waterproof Car Motorcycle LED DC Digital Display VoltmeterThe meter has easy to read and connect to your 12 24 Volt SystemUsed to monitor the storage battery voltageWith reverse connection protection function if the wire is reversely connected the will not be burned to damage Mainly used to monitor battery voltage and know the running status of the Voltmeter and also can be applied to measuring the voltage of other productsWith compact Portable DesignSpecification Color BlackLED Color Orange Blue Red GreenInput voltage DC12V 24V The alternating current cannot be used The range of measurement 5V 30VMaterial ABS LED Digital displaySize about 42mm L x 60mm W Interface Type Connection of Cathode and Anode Package Included 1 X Voltmeter Voltage Meter Gauge