... features: 1.Two-way to communication.2. Wireless LED defense zone and wired defense zone3. The system supports the GSM cell phones ... , door (gap) sensors, gas sensors, smoke sensors, beams, panic buttons and so on, 160pcs in total. 11.Send the SMS to ... output relay, can control the home appliance, like light, cooker and so on Technical parameter: Operating voltage: Input 100-250V, output ...