FamilyMall Digital Car Voltmeter 12V ~ 24V - LED Display Battery Voltage Tester, Plug into Cigarette Lighter Socket, Portable Auto Battery Monitor for Cars, Trucks & SUVs

【Easy Plug & Play Design】Simply plug this digital car voltmeter into the cigarette lighter socket for an instant reading of your vehicle’s battery voltage. 【12V & 24V Compatibility】Works with both 12V cars and 24V trucks/SUVs, making it a versatile battery voltage tester for multiple vehicles. 【Bright LED Digital Display】Features a clear, high-visibility LED screen that allows easy reading of your car battery status, even in daylight. 【Real-Time Battery Monitoring】Continuously monitor your car battery health to prevent unexpected breakdowns and protect your engine and electronics. 【Compact & Portable】This small car battery monitor fits in your pocket and is always ready for quick voltage checks-no need to open the hood.