Linkstyle Battery Voltage Gauge, DC 24V 12V Volt Meter, Digital Display Meter 12V, Waterproof Voltmeter with Touch Switch

2-in-1 Function: Car voltmeter monitors DC 5–48V voltage and 0–100% battery capacity in real time with ±0.1% accuracy, preventing battery failure or unexpected power outages Waterproof & Built to Last: Built with a waterproof housing, reverse polarity protection and a built-in 10A fuse, this battery monitor provides reliable performance for cars, motorcycles, boats, trucks, campervans and RVs, even in demanding environments. One Button Operation: Press once to switch between battery voltage and battery capacity display. Hold for 5 seconds to power the unit on or off, helping reduce battery drain when the vehicle is parked Easy to Install: LED digital voltmeter fits a 30mm mounting hole and can be installed with or without the faceplate. Secure with the lock nut; connect red to positive and black to negative Wide Application: Waterproof voltmeter is suitable for 12V 24V 36V battery systems, including cars, boats, motorcycles, RVs, SUVs, trucks, tractors, outdoor battery, golf carts and more