Features: 1.Universal Type: 2?in?1 voltmeter and water temperature meter is suitable for automobiles, RVs, ships, yachts, motorcycles. 2.Advantage: Intuitive display parameters, high accuracy, low power consumption, good stability, strong anti shake ability. 3.Advanced Technology: Adopting advanced single chip technology, the safety parameters of the car engine are directly displayed on the LCD screen. 4.Good Measuring Device: With wide range of applications, long service life and comprehensive protection functions, ideal choice for measuring the performance of various motors. 5.Quality Material: Car voltage gauge is made of premium ABS and brass material, rustproof, sturdy and durable, long service life. Specification: Item Type: Water Temperature Meter_x000D_ Material: ABS and Brass_x000D_ Working Voltage: DC9-36V_x000D_ Working Environment Temperature: -40-50_x000D_ Working Environment Humidity: 45%-75%RH_x000D_ Test Parameters and Alarm Points:_x000D_ Voltage Test Range: 9-39V_x000D_ Measurement Accuracy: 0.1%_x000D_ Alarm Voltage: Lower Than 10V, 16-20V, Higher Than 31V Intermittent Alarm_x000D_ Water Temperature Measurement Range: -10-120_x000D_ Measurement Accuracy: 0.1% Intermittent Alarm Above 95_x000D_ Fitment: Universal for Cars, RVs, Ships, Yachts, Motorcycles