Description - 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 Blue. - 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. - Waterproof - LED Display: Blue - Operating Voltage: 12-24V - Measure Voltage: 6 - 30V - Size: 1.4" x 1.4" x 0.5" - Interface Type: Anode and cathode - Eco-friendly Meterial: Acrylic - Application: Universal for all Cars, motorcycles and other universal models. What's Included ? - 1 x LED DC Voltmeter - 2 x Insulated Terminals