100% brand new and high quality 3 in 1 design and digital display can display car battery real-time voltage time and temperature in car Portable appearance、 easy to use Adjustable base design with double-sided tape can be convenient for installation High sensitivity probe can measure the car inside and outside temperature accurately and quickly、 the probe need installing outside the car、 but please far away from engine Backlight function convenient for you to view the thermometer or clock voltage in poor light environment Car cigarette lighter type power supply suitable for most DC 12V-24V cars、 built-in 2pcs standby button batteries、 provided for the normal usage when car battery is power off Item Type: 3 In 1 Car Kit Electronic Clock Thermometer Voltmeter Material: Plastic Screen Type: Digital Display Function: Time And Car Inside And Outside Temperature Car Battery Voltage Display Application: Car Size(Base Not Included): 9.2*5.5cm/3.6*2.2in(L*W) Base Diameter: 4.5cm/1.8in Interface Type: Power Supply Interface、 Temperature Probe Cable Interface Backlight: Blue+Orange Power Supply: Car Cigarette Lighter、 2pcs Button Batteries(Standby) Color: Black、 Edge Color Random Package Included: 1* 3 In 1 Car Kit Electronic Clock Thermometer Voltmeter 1* Power Supply Cable 1* Probe Cable