SORHEA’s shock detection cables are equipped with an accelerometer. This type of sensor detects the variations in movement of an object according to 3 axes, comparing them to a pre-set zero point.

The sensor has the special feature of making the entire fence panel sensitive to cuts, climbing or tearing-down because every intrusion-induced vibration (not vibrations caused by wind) is detected by the sensor.

The dual-technology detectors associate a passive infrared (PIR) sensor with a microwave sensor with Doppler effect. The passive infrared detector detects temperature variations in its detection field during an intrusion.

The Doppler detector uses a microwave transmitter and receiver antenna that transmits a pulse and analyses the signal reflected by the environment. The frequency differences between the signal transmitted and the signal received provide information about the moving objects in the detection area.