Review on 🚗 High-Performance 12-24V LED Digital Car Voltmeter for Optimal Vehicle Voltage Monitoring in Automobiles, Motorcycles, Trucks by Adam Madden

Overall I am very pleased with these voltmeters. They are also easy to read from a distance and are very useful for batteries you are storing or for your vehicle to get an idea of the state of charge or your alternator. Well, these aren't the most accurate gauges. . But for the price they are quite reasonable. Most of them are within 0.1-0.2 volts of each other and from my much more accurate multimeter. One was clipped by about 0.4 volts, but just to look at it and see the overall health of the battery is enough for most users or people. They also don't use a lot of electricity. I've measured them draw about 50mA, which is not entirely negligible, but shouldn't be a huge drain on the car battery unless you're going to be driving them plugged in for several weeks.