The time switch sets the length of time the device continues to supply power after you exit the vehicle. The device reenables power when it detects motion, or when you reenter and restart the vehicle.

10m	10 minutes
24h	24 hours
	Always on

If you want the device to remain off until you reenter the vehicle, you should select the 10m option.

If you want the device to operate continuously while the vehicle is parked, you should select the 24h or option.