Voltmeter Socket Measure voltage: 6 ~ 30V Used to monitor the storage-battery voltage, with reverse connection protection function, line will not burn Suitable for charging GPS, phone, car MP3 power, car vacuum cleaner power, car tire inflation power, etc. Can not be used to light cigarettes because of different structures USB waterproof cover Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. Thank you! Package Content: 1 x Voltmeter Panel
