Feature: 1. Multifunctional: Double probe, can detect indoor and outdoor two temperature, Celsius, Fahrenheit temperature conversion, with clock function. 2. High Quality Material: Car temperature digital clock is made of high quality ABS material, wear resistant, anti aging and durable. 3. Excellent Performance: Professional manufacturing, high accuracy, stable performance and high reliability, have a long service time. 4. Temperature Measurement Range: Indoor temperature measurement range is ‑30℃ ‑ +50℃, and the outdoor temperature range is ‑50℃ ‑ +70℃. 5. Convenient: Driver can easily and conveniently know the time and temperature to arrange the driving time appropriately, more practical. Specification: Item Type: Car Temperature Clock Material: ABSFunction: Double probe, can detect inside and outside two temperature, Celsius, Fahrenheit temperature conversion, with clock function Temperature Measurement Range: Indoor temperature -30℃ - +50℃, outdoor temperature -50℃ - +70℃ Accuracy: ±1 ℃ Power Supply: AAA battery (750mAH) x1 (shipped without battery) Display Size: Approx. 33x12mm/1.30x0.47in Outdoor Extension Line Length: Approx. 1.5m/4.92ft. Package List: 1 x Car Temperature Clock1 x User Manual