Functions:
1. Measure the distance between the detector and the reflection surface.
2. Has communication ability.
3. Automatic set up the height of the detector.
4. Control the arrow displays and symbols to guide.
5. Automatic alarm when errors occur.
6. May assign address on the spot.

Features:
1. Fast and convenient for saving parking time.
2. Detection to parking spaces effects accurate monitoring.
3. Simple structure convenient for installation and maintenance.
4. Strong ability of anti-interference leads to reliable communications.
5. Low power consumption leads to long-lived service.