... system Main features: 1.Two-way to communication.2. Eight wireless LED defense zone, four wired defense zone3. The system supports ... . 10.Can support all kinds of wireless sensors, such as PIR detectors, door (gap) sensors, gas sensors, smoke sensors, beams, panic ... kits: a main panel,a voice speaker, a wireless PIR detector, a wireless door/window gap detector a siren, two remote controllers, a power ...