Securitymate Wireless Car Warning IndicatorSMPDCS
- Operating frequency: 433MHz.
- Detects the distance between your car and the wall of the garage to avoid collision.
- Three optional parking distances:
- Green: proceed
- Yellow: caution
- Red: stop
- Low battery indicator.
- Ultrasonic wave.
- Powered by four AA batteries (not included).
- Energy saving circuit.