-Double temperature inside and outside the car -12/24V car universal, ultra-simple installation -Vehicle-mounted high temperature and vibration resistance -bracket angle adjustment, rubbing and fixing. --5M car impact and probe wire -low power consumption, super power saving -Temperature measuring range: inside the car:-20 ~+70 C. Outside:-50 ~+70 C. Installation: 1. Fix the product on the car, place the outdoor probe outside the door, install an AG10 battery, and the LCD displays the current temperature inside and outside the car. 2, plug in the car power supply, the product appears blue backlight. 3. If there is no vehicle power supply and backlight, it is only the product to test the temperature inside and outside the vehicle. Package includes: 1x Thermometer 1x Manual 1x Charger cable Product Notes: Please allow a little manual errors.Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please confirm acceptance before ordering. About Shipping: Please ensure your shipping informations are correct to avoid delivery issues. All orders are shipped within 3 days after payment. Delivery usually takes 8–12 days, The specific delivery time is depend on circumstances. If you have any questions during your purchase, feel free to contact us. We will respond you within 221 hours.