:This voltmeter can real-time monitoring of car battery voltage, making you know the battery voltage status timely. It is easy to read the result by the digital display design.With touch switch function, this voltmeter is convenient for you to use. It is universal for 12-24V vehicles, easy for you to modify freely.Made of high-quality flame-retardant PC material, this voltmeter is durable and safe to use.The length of this voltmeter is 3.6cm, the width is 3.2cm and the height is 2.7cm.It is suitable for motorcycles, cars, trucks, boats, yachts, etc., universal for 12-24V vehicles.Item Name: VoltmeterMaterial:PCInput Voltage: 12-24VOutput Voltage: 5VOperating Temperature: -40 Degree Celsius - 60 Degree CelsiusShell Color: BlackDisplay Color: Red/Blue/GreenApplicable Charging Range: 12-24VSize:3.6cmx3.2cmx2.7cm/1.42inx1.26inx1.06inNotes:Due to the light and screen setting difference, the items color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 X Voltmeter2 X Blue Sheath Terminals