Features: 1. Universal for: Motorcycle Car/Boat/ATV/UTV/Camper/Caravans/Travel Trailer etc.2. Display: 3-bit, digital LED tube, tube display is green.3. Works for 12V-24V. Small size and easy to install, check the voltage perfectly.4. Mounts into a 1-1/8" hole in 0.25" thick panels, nylon retaining nut holds the meter in place.5. Battery status between fully charged and discharged.6. The meter has easy-to-read diode segments and connects to a 12-volt system.7. Used to monitor battery voltage, with reverse connection protection function, the line will not be burned.8. Timely capture the battery voltage status, voltage measurement purposes can also be used for other products. Specification: Type: Voltmeter Input voltage: 12V-24V Size: Approx. 36*31*26mm (as shown in the picture) Measuring range: 6-30V Output voltage: 5V Color LEDs: red, blue, green (optional) Material: ABS Operating temperature: -40-80 deg; cPackage include: 1x Mini Voltmeter Notes: 1. Due to manual measurement, please allow 1-2cm error. Make sure you don't mind bidding.2. Due to the difference of different monitors, the picture may not reflect the actual color of the item. Thanks!