Feature: Specification: Featrues 1. The 12V LED digital display voltage gauges are made of PC and use flame-retardant materials, which is durable and sturdy, supporting a long time application. 2. The car voltmeters are lightweight and portable, each voltmeter is about 3.7×3.2cm / 1.5×1.3in, suitable size will facilitate your use and you can store them without taking up much space. 3. The voltage gauge is suitable for most kinds of 12V~24V voltage vehicles, such as automobile, motorcycle, bus, caravans, trailer, ship, boat, yacht and so on. 4. Precise LED digital display, this 12v voltmeter gauge is easy to read, real time monitoring of battery voltage, easy for you to know the status of the battery. 5. Timely grasp the state of battery voltage between full charged and discharged of this D C voltmeter. Specification Material: PC Color: Green, Blue, Red Size: 3.7×3.2cm / 1.5×1.3in Weight: 12.4g Input Voltage: 12V~24V Working Temperature: -40-80（℃） Package Include: 1× LED Digital Display Voltmeter Package List: Package Include: 1× LED Digital Display Voltmeter