Adoption of material, the voltage is durable and use. It works for 12V-24V equipment. With mini size, it is easy to install, great for checking voltage. A nylon retaining nut holds the meter in place. Suitable for motorbike, Car, Boat, UTV, Caravans, Travel Trailer, etc. Feature - Color: As shown. - Material: Plastic. - Size: About 3.7 x 2.9 x 1.5cm/1.5 x 1.1 x 0.6inch(LxWxH). - Input voltage: 12-24V. - Output voltage: 0-30V. - Ambient temperature: - to 85 degrees. - Waterproof grade: IP68. - Suitable for motorbike, Car, Boat, UTV, Caravans, Travel Trailer, etc. - Twist-and-Lock system. Display: 3-bits, digital tube, lamp display color includes blue and green. - It works for 12V-24V. Mini size and easy to install, work great for checking Voltage. - A nylon retaining nut holds the meter in place. - Used to monitor the storage-battery voltage, with reverse connection protection function, line will not be Package list: 1 x Universal Digital Display Voltmeter Waterproof Voltage Meter Green for DC 12V-24V Car Motorcycle Auto Truck