Features: Multi-functional electronic clock module that displays time, indoor and outdoor temperature, and voltage in one unit. You can view a single parameter or cycle through the readings automatically, with customizable display options. The time function uses Epson's RX8025T chip, a temperature-compensated real-time clock for high accuracy. Includes standard 0.3m and 1.5m cables with two waterproof temperature probes, supporting a range of -35°C to 120°C. Features adjustable brightness with three manual levels and an automatic brightness mode that dims at night and brightens during the day. Compatible with 12V and 24V vehicles including motorcycles, ATVs, cross bikes, scooters, cars, boats, SUVs, and aircraft. Designed for easy installation with a compact size. Package Includes: 1 x Digital Car Clock Specifications: Working Voltage: DC 5.0–27V Mounting Hole Size: 19.5 x 56 mm Temperature Display Range: -35°C to 120°C (±1°C error) Voltage Display Range: 5.0–28V (±0.1V error) Power Lead Length: 28 cm Note: 1. Please allow 1–2 cm variation due to manual measurement. Ensure you are comfortable with this before ordering. 2. Due to differences in monitor displays, the actual color of the item may vary from the image shown. Thank you for your understanding.