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4.5-30V DC Two-Wire 0.56" 3 Digit Blue Panel Mount LED Digital Voltmeter Voltage Meter This voltmeter can be used to measure the battery and charging voltage in cars, trucks, motorcycles, ATVs, RVs and other applications requiring voltage measurement from 4.5V to 30V. The two-wire design simplifies interconnection. The Blue wire connects to the battery's positive terminal and the black wire to negative (ground). Additional circuitry or a sense wire is not needed. .
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.