Suitable for motorcycle, car, boat, UTV, caravan, travel trailer, etc. Twist-and-Lock system. Display: 3-bit, LED digital tube, indicator of blue and green color. It works for 12V-24V. Mini size and easy to install, great for checking voltage. A nylon retaining nut holds the meter firmly. To monitor the memory battery voltage, with reverse connection protection function, the cable will not be burned. Product Description Adopting high quality material, the tension is durable and long lasting. It works for 12V-24V equipment. With its mini size, it is easy to install, great for checking voltage. A nylon retaining nut holds the meter firmly. Suitable for motorcycle, car, boat, UTV, caravan, travel trailer, etc. Features: - Color: as picture shown. - Material: plastic - Dimensions: approx. 3.7 x 2.9 x 1.5 cm (L x W x H). - Input voltage: 12-24V - Output voltage: 0-30V - Ambient temperature: -25 to 85°C. - Waterproof class: IP68. - Suitable for motorcycle, car, boat, UTV, caravan, travel