100% brand new and high quality Features: Measure and display the temperature(Celsius) in your vehicle as well as the temperature outside Works with 12V vehicles,Voltage display Plugs into your car's cigarette lighter charger LCD digital display, easy to read Power Supply:12V Phone Number Temporary Parking 12V Voltage Measuring Placement on Vehicle:Front Fitment Type:Direct Replacement Indoor and Outdoor Temperature: Internal Temperature Range: -20~+70C External Temperature Range: -50~+70C Accuracy: +/-1.5C Icing Alarm:0 to 4C Clock/Year/Month/Date Orange and Blue Backlight Battery: 1xCR2032 Cell Battery Material:Plastic Color:black Size:150x33x40mm/5.90x1.30x1.57 in Cable Sensor Length: 1.5m Weight:115g How to use: 1.Connect plug to car cigarette socket, put temperature sensor outside and fix it at the car door's edge, then run the car. Product will display indoor temperature (icon show IN) and car battery voltage. 2.Press UP/Down to shift to Time display. 3.When temperature outside is lower than 0 to 4C, ICE icon will display. 4.The number at right side is car battery voltage. 5.Press the side button to shift blue and orange color backlight. 6.If any abnormal display, please take out battery for a while and reload it again. Note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x Main unit 1 x Phone Number Card 1 x User manual