Car 4 in 1 Tachometer, Gauge Temp,Battery Voltage

Digital Auto Car Thermometer Car Battery Voltmeter Voltage Meter Tester Monitor 12V / 24V Noctilucous Clock Freeze Alert Product description This Car Voltage Meter Clock Thermometer is a multifunctional clock with 4 in 1 function, including time, thermometer, voltmeter and backlight. It can inspect your automobile at real time effectively, there is alarm lamp to remind you to avoid icing may cause damage to your car as temperature lower freezing point. There are alarm voice and lamp to remind you to cheeking the storage battery as the voltage is excessive to too low. You can maintain your automobile by the real time data of voltage. Portable, Quick reading Display Type: Digital LCD display Power Supply: Build-in battery Material : Plastic Color : Black Special function : Time display (12 / 24hour),