508D
by DIRECTED
Directed 508D - Invisibeam Field Disturbance Sensor
The 508D Double-Guard proximity sensor triggers your alarm when a high-density object, like a hand or a tool, enters the cabin of your vehicle. You can set this sensitive dual-zone sensor to trigger a chirp when someone enters a warning zone just outside your vehicle, then to trigger a full alarm response when the second inner zone is violated.
Recommend the 508D sensor to protect convertibles. You can set the sensor to chirp when somebody touches the top, and to trigger the alarm when somebody enters the vehicle with the top down.