- Dual temperature display for inside and outside the vehicle - Compatible with 12V and 24V vehicles; universal fit with simple installation - Designed for automotive use with high temperature and vibration resistance - Adjustable bracket for flexible mounting and secure positioning - Includes 5-meter cable for probe placement - Low power consumption for efficient energy use - Temperature measurement range: Interior: -20°C to +70°C Exterior: -50°C to +70°C - Installation instructions: 1. Mount the device in the vehicle, place the outdoor sensor outside the door, insert an AG10 battery; the LCD will display indoor and outdoor temperatures. 2. Connect to vehicle power supply to activate blue backlight. 3. Without vehicle power, the device operates on battery only, displaying temperature without backlight. - Package includes: 1 x Thermometer 1 x User manual 1 x Charging cable