Feature: 1. 2-in-1 car meter, integrating water temperature meter and voltage meter in one, 9-36V wide working voltage, wide application. 2. LED digital display, with sunshading function design, the data on the screen can be read clearly even under the direct sunlight. 3. With alarm function, when the water temperature or voltage is too high or too low will automatically alarm, making driving safer. 4. With 1/8NPT temperature sensor, high conduction sensitivity and more accurate value. 5. High-quality ABS housing with high strength and nice durability, sturdy and not easy to damage. 6. Easy to install and use, suitable for car, truck, SUV, RV, etc. Specification: Features: 2-in-1 car meter, integrating water temperature meter and voltage meter in one, 9-36V wide working voltage, wide application. LED digital display, with sunshading function design, the data on the screen can be read clearly even under the direct sunlight. With alarm function, when the water temperature or voltage is too high or too low will automatically alarm, making driving safer. With 1/8NPT temperature sensor, high conduction sensitivity and more accurate value. High-quality ABS housing with high strength and nice durability, sturdy and not easy to damage. Easy to install and use, suitable for car, truck, SUV, RV, etc. Specifications: Color: Black Material: ABS + Metal Voltage: 9-36V Gauge Install diameter: Φ52mm (2") Temperature Measuring Range: 14-248℉, Accuracy: ±1% Voltage Measuring Range: 9-39V, Accuracy: ±0.1% Gauge Size: 65 * 65 * 65mm/ 2.6 * 2.6 * 2.6mm Package Size: 105 * 70 * 77mm/ 4.1 * 2.8 * 3.0in Package Weight: 140g/ 4.9oz Packing List: 1 * Water Temperature Gauge 1 * Bracket 2 * Screw Package List: 1 * Water Temperature Gauge 1 * Bracket 2 * Screw