Operating instructions: Indoor or outdoor thermometer with voltmeter & clock Intended use: 1.The product is used to measure the temperature in indoor and outdoor areas. Furthermore, the battery voltage of a vehicle can be measured and displayed; a digital watch is also integrated. Power is supplied bybatteries of type LR44or CR2032(power for the display light is only supplied via the cigarette lighter connection of the vehicle). 2.Read the operating instructions carefully and keep them for later reference. Always observe the safety instructions and all other information included in these operating instructions 3.Any use other than that described above will lead to damage to this product and will expose you to additional risks, such as short circuits, fire, electrical shocks etc. No part of the product may be modified or converted 4.This product complies with the applicable national and European requirements. All names of companies and products are the trademarks of the respective owners. All rights reserved. Description: This product is available for your car in real time for effective clinical control, when the temperature is freezing, you are prompted to pay attention to the alarm pattern ice damage to your car performed. When the battery voltage is too high or too low, the real-time voltage data display, you can issue a warning in advance, so you can monitor real-time data more efficiently, and can be noted in the above data and alarm on the car maintenance and repair. Specifications: 1, the temperature measuring range: -50 to 70 degrees (when the temperature is below -1 degrees, ice alarm pattern lit). 2, real-time monitoring car battery voltage, current-voltage digital display. 3, the time display function, the key for years, month, date display. 12 and 24 hour display format. 4, blue, orange backlight color conversion. 5, size: 108 X 80 X 42mm (W XD X H) 6, Weight: 115 g 7, Packing: Color Box Package include: 1 x Thermometer and Battery Voltage Measuring with Time 1 x User Manual