... remotely. 3,Can support the GSM cell phone products introductionThis is a new GSM home alarm system. The system will call 5 users’ ... , store, house , warehouse, shop and other places without network.Technical ParametersAverage power: AC/DC exchanger 2A.Wireless receiving distance ... door sensor,1 siren, 2 remote controllers, 1 GSM antenna, 1 power supply, 1 manual GSM home security alarm system