（1） Power supply mode
ACC mode ["O"]:
1: Voltage detection model: When the car is turned off, the OBD line automatically stops supplying power after a 20 minute delay!
2: Vibration detection model: Car vibration triggers power supply, and the OBD line automatically stops power supply after a 20 minute delay when the car is stationary!
Constant power mode ["one"]:
1: Voltage detection model: 24-hour parking monitoring, continue to supply power after the car is turned off until the car's battery level drops below
After 11.6V, the OBD line will automatically stop supplying power after a 5-minute delay!
2: Vibration detection model: 24-hour parking monitoring, continue to supply power after the car is stationary until the car's battery level drops below
After 11.6V, the OBD line will automatically stop supplying power after a delay of 8 seconds!
（2） Low voltage protection
The OBD line is equipped with an MCU intelligent control chip, which can detect the battery level of the car in real time
After dropping to the low voltage protection value of the OBD line, the OBD line automatically enters low voltage protection and the output is turned off!
The "O" symbol for the switch is ACC mode (power supply for starting the car, power-off for turning off the car)
The symbol for switch "one" is in constant power mode (24-hour parking monitoring)