Voltmeter gives readings in low-light conditions
Model 4-540 digital voltmeter/battery testers red LED screen displays clear readings even in dim lighting conditions. Records four- digit readings ranging
Model 4-540 digital voltmeter/battery tester’s red LED screen displays clear readings even in dim lighting conditions. Records four- digit readings ranging from 4.5 to 19.99 volts with ±0.03 accuracy. Also features reverse-polarity protection. Works with 6- to 12-volt systems. Phillips Industries, Santa Fe Springs, Calif.