There are front-end sensor: infrared probe, infrared shot of the probe, grating, head curtain, broken glass detectors, Smoke probe, gas leak detectors, Menci, and other components.
 infrared probe: the installation of the main owners in the indoor hall, and more generally for the two-infrared probe.
 infrared probe of the shooting, grating: the main installation in the area within the perimeter walls or glass curtain wall.
 probe curtain: the installation of the main owners in the room above the doors and windows.
 broken glass detector: the installation of the main owners in the indoor form.
Smoke  probe: the main hall owners or installed in the kitchen.
 gas leak detectors: the installation of the main owners in the kitchen.
 Menci: doors and windows installed in the Department of owners.