3-in-1 LCD Pressure Gauge for Car Truck SUV RV Oil Pressure Voltage Water Temperature 9-36V

3 in 1 Car Device, Integrating Oil Pressure Gauge, Water Temperature Indicator and Voltmeter, with Digital LCD Display, Clear and Easy to View. Can work under ultra wide voltage, 40V can also work normally. When the voltage is too high or too low, it will flash and alarm. It has an oil level anti-shock function and can maintain the normal display even if the car is hit or the oil float is open. Thanks to the self-learning function, the floating oil resistance of each model can be given. Working voltage 9-36V, suitable for most models on the market, such as car, truck, RV, SUV, etc.