wired/wireless sms alarm with low price

Specifications sms alarm , lower price, two-way communication for alarm, know which zone and detector triggered, gsm network for alarm

sms alarm The home GSM alarm system, 850/900/1800/1900MHZ Main features: 1, Use SIMCOM GSM module---industrial module, to know which zone is triggered, and which detector is triggered from the SMS. 2, Two-way voice communication, to talk with people who are on spot. 3, To send the SMS and dial-up 6 phone numbers when alarm 4, Eight wireless zone and four wired zone for alarm 5,10 seconds voice to record 6, Can set home/way arm functions for alarm 7, Can work with 120 wireless detectors in total 8, To control the home appliance, like light, cooker and so on. 9, with inner backup battery, can work about 12 hours if power failure