DROK 0.36" Micro Digital 0~100v Voltmeter Temperature Meter -10 to +170 Fahrenheit Degree 2 in 1 Multimeter Volt Temp Panel Meter Voltage Gauge LED Display for Auto Car Vehicle Automotive Motorcycle (Red Display) It is a voltage meter as well as temperature meter with 1% accuracy for Auto car Voltage messuring range is 0~100V and Temperature messuring range is -10 to +170 Fahrenheit degree Easy installation beacuase of 3 wires and same power supply and testing input With reversed connection protection, meaning the meter will not burn even when connected reversely Tiny in size and light in weight but with strong durability