... alarm worked with monitor centerHome alarm system 1,gsm alarm system 2,Smart alarm system 3,home alarm,house alarm system 4,burglar ... R&D fire alarm system,gsm alarm system,gsm alarms,wireless alarms,wireless alarm system,intruder alarm system,intruder alarms,gsm industry ... 13. Can send alarm signals to monitoring center through GSM network, such as the police station. package : Shenzhen sinda ...