Working voltage: DC 5.0~27V Frame size: 22x58 mm Installation opening size: 19.5x56 mm Temperature display range: -35 ~ 120°C (±1°C accuracy) Voltage display range: 5.0~28V (±0.1V accuracy) Power lead length: 28cm Integrates time, internal and external temperature, and voltage into one display. Users can choose to display individual readings or cycle through multiple measurements. Display settings are customizable. Equipped with RX8025T timekeeping chip for accurate time display. Includes two temperature probes: one 0.3m and one 1.5m waterproof probe, both with a measurement range of -35°C to 120°C. Features adjustable brightness with three levels and an automatic brightness mode that adjusts based on ambient light, dimming at night and brightening during the day. Condition: Material: ABS Color: Black Display screen color: Green Package Contents: 1 x Car Clock Note: Light reflection and differences in display screens may cause slight variations between the product color in images and actual color. Measurement error allowance is ±1-3cm.