Description 100% brand new and high quality DC 4.5v-30V 0-50A Dual LED Digital Voltmeter Ammeter Voltage AMP Power Meter The small size of the two-color dual instrument. Voltage and current can be displayed on the same screen at the same time This instrument test voltage, current, power supply is taken from the test loop. No additional power supply The the instrument test voltage supply range: DC4.5 ~ 30V Note: The maximum input voltage can not exceed 30V, otherwise there is the danger of burned The instrument is equipped with three wiring. Convenient access to car / battery car / motorcycle car line. Used to monitor the battery voltage, Grasp the battery voltage state, can also be used for other products, the use of Voltage/current measurement. Specification Supply voltage: 4.5 30V Measur.
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