... phone number when alarm happen home GSM alarm system 1.Two-way to communication.2. Eight wireless ... LED defense zone, four wired defense zone3. The system supports the GSM cell phones, no need the fixed ... , disarm, panic from long distance.9. Can control the system by using a telephone or cell phone anytime, ... about 12 hours.13. With output relay, can control the home appliance, like light, cooker and so ...