Description: It is a practical car measuring setconsisting of a voltmeter and a thermometer. Small size and high accuracy, with digital display LCD, temperature, voltage, clock, date, everything will be visible in this mini device. Features: Car voltmeter 2-in-1 thermometer, compact and portable. Precise voltmeter, accurate monitor and instant display of battery voltage data on the LCD screen. The thermometer function, equipped with a 2-meter wired temperature sensor, measures indoor and outdoor temperature with high accuracy 1,0 . Meanwhile, this device can freely switch the celsius and fahrenheit degree display. Digital LCD display, shows hours, minutes, internal temperature, external temperature and voltage simultaneously on the same screen and provides 12-hour or 24-hour conversion of the time display system. Backlight mode with two LED LEDs: If the device is powered by a cigarette lighter, the backlight is highlighted and all content (including time, temperature and voltage) will be displayed on the LCD screen. If it is powered by a backup battery, there is no backlight, and the LCD screen will display the time and temperature. Freezing Warning Function: When the outside temperature is in the range of -1 4, the freezing warning icon will flash continuously for 30 seconds. More user-friendly functions: calendar, alarm clock, snooze function, etc. With stable stand holder, flexible and easy to adjust the angle to see the screen clearly. Technical data: Kolor black Material: ABS Temperature display: or Temperature measurement range: -50 70 Temperature measurement accuracy: 1.0 Temperature sampling duration: 20s Voltage measurement range: DC 12 24 V Battery: 2 units L1154F battery (included) Power cable length: Approx. 1.4m or 55.1in Temperature sensor cable length: Approx. 2m or 78.7in Size: Approx. 15.5 x 4.6 x cm or 6.1 x 1.8 x 0.8in Package weight: 148g List of packages: Car voltmeter thermometer 1x2 in 1 1 x stand holder 2 x L1154F batteries 1 x User Manual Please be aware: