Senyar digital car clock, DC4.5-30V waterproof dustproof car electronic clock automatic LED digital display (green)

Specification: Condition: 100% Brand New Material: ABS Optional Color: Red, Blue, Green Supply Voltage: 4.5-30V (Wide Range) Backup Battery: CR1220 (Backup power supply for the clock; time can be maintained for more than 12 months without power) Working Current: <20mA Power Supply, Button Wire Length: >120mm Size: Approx. 54 x 30 x 27mm / 2.13 x 1.18 x 1.06 inches Mounting Hole: Approx. 47.2 x 27.3 mm / 1.86 x 1.07 inches Minimum supply voltage: +4.5 V Maximum supply voltage: +30 V Operating temperature: -10 - +65°C Operating humidity: 10-80% (non-condensing) Operating pressure: 80 - 106 kPa Light source: no direct sunlight

Package list: 1 x electronic clock

Instructions: 1. Power on: When the red positive and black negative connections are connected to the power supply, the time will be displayed. The built-in CR1220-3V backup battery powers the clock. When the external power supply is not connected, the clock will run continuously and will not stop. 2. Key switching sequence: Time division mode - Second mode - Date mode - Timer mode 3. Second mode: In time mode, press the button to display the second, display format: XX. After no button press for approximately 30 seconds, it will automatically return to hour and minute mode. Press again to switch to the next mode. 4. Date mode: In time mode, double-press the button to display the date, display format: month. After approximately 30 seconds, it will automatically return to hour and minute mode. Press again to switch to the next mode. 5. Timer mode: In time mode, a