Featrues 1. The 12V LED digital display voltage temperature 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 3.73.6cm / 1.51.4in, suitable size will facilitate your use and you can store them without taking up much space. 3. The temperature voltage gauge is suitable for most kinds of 12V 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 and temperature, 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: Blue, Red Size: 3.73.6cm / 1.51.4in Weight: 14.8g Input Voltage: 12V Working Temperature: -40-80 Package Include: 1 Digital Display VoltmeterPackage ListPackage Include: 1 Digital Display Voltmeter