435358 Overview: Do you want to control the car temperature while your are driving? Do you want to know battery voltage of your car when it is charged for other devices? VST VST-708 3-in-1 multi-functional car charger can help you. It has the function of car battery voltage monitor， car charger， and thermometer. LED screen displays the temperature and voltage clearly which makes your driving more convenient. Come on to experience it! Brand: VST Model: VST-708 Quantity: 1Piece Color: White Material: Plastic shell Features: - Function 1: Car battery voltage monitor Plug the product into the car cigarette lighter port， and the screen will display the car battery voltage Suitable for 12V cars/SUV and 24V trucks/motor buses As for different cars have storage batteries， motors and stabilizers， so different voltages have different meanings - Function 2: Car charger Plug the product into the car cigarette lighter port， 2.1A dual USB can charge for phone， digital cameras， DVs， tablet PC etc. Current range: 0~2100mA (each USB) - Function 3: Car thermometer Measuring range: -30℃~+70℃ In order to get accurate temperature， you had better bend the soft external temperature sensor to avoid the exothermic part (such as directly irradiated by the sun)， which will affect the measuring results Packing list: 1 x 3-in-1 Voltage monitor thermometer car charger