1、Mini size and easy to install,work great for checking Voltage. 2、The state of your battery between full charged and discharged 3、The meter has easy to read LED segments and connect to your 12 volt system. 4、Used to monitor the storage-battery voltage, with reverse connection protection function, line will not be burnt. 5、Timely grasp the state of battery voltage, voltage measurement purposes can also be used for other products. Features: Universal for: Motorbike Car / Boat / ATV / UTV / Camper / Caravans / Travel Trailer etc. Twist-and-Lock system.Display: 3-bits, LED digital tube, lamp display is white . It works for 12V-24V. Mini size and easy to install,work great for checking Voltage. Mounts in a 1-1/8" hole in panels up, 0.25" thick, a nylon retaining nut holds the meter in place. The state of your battery between full charged and discharged The meter has easy to read LED segments and connect to your 12 volt system. Used to monitor the storage-battery voltage, with reverse connection protection function, line will not be burnt. Timely grasp the state of battery voltage, voltage measurement purposes can also be used for other products. Specifications: Waterproof Display: White Blue Green Red LED Measure voltage: 6 - 30V Size: 1.4" x 1.4" x 0.5" Interface Type: Anode and cathode Eco-friendly Meterial: Plastic Application: Universal for all Cars, motorcycles and other universal models. Package includes: 1x white LED DC Voltmeter