SINEDY Car Windscreen Inner Temperature Thermometer Suction Cup Practical Useful LCD Digital Car Indoor Thermometer with suction cup. Measures and displays the temperature (in Celsius or Fahrenheit) in your vehicle. Temperature range: -20C ~ +110C. Accuracy: 1C. Power by 1 x LR44 battery(Battery Not Included). Size: 2.8cm x 9.3cm x 1.5cm. Color: transparent.