Anina 2Packs Car Voltage Meter Monitor 12V/24V Voltmeter Gauge with LED Digital Display Round Panel Mount Battery Monitor Compatible with Vehicle Truck Motor Cycle ATV UTV Marine Boat

Real-Time DC Battery Monitor: This LED digital voltmeter gives you a precise, constant readout (8V-48V) of your battery’s voltage, letting you spot issues before a dead battery leaves you stranded, accuracy 0.1- 0.2V, only display voltage will not show power

Clear Blue LED for Day & Night: Bright blue LED digits ensure easy reading under the sun or at night, with 0.1V accuracy for reliable monitoring of your 12V/24V system

LED Digital Display: This Panel Mounting Voltage Meter with an led digital display to help monitor the on-board battery level and also makes it easy to ensure that you are not using more than the system can produce while working, thus avoiding draining the battery

Waterproof for Vehicles & Boats: Rugged and sealed designed battery voltage monitor, making this 12V battery meter works everywhere—from daily cars and trucks to boats, RVs, and motorcycles. It’s built to handle rain, splash, and off-road conditions

Easy 29mm Panel Mount Kit: Install in minutes - Everything is included for a clean mount in a standard 29mm dashboard hole or on the provided panel

A Diagnostic Tool to Extend Battery Life: Monitor voltage health to prevent unexpected failures; marine voltmeter gauge is simple practice helps extend battery life and avoid costly breakdowns