... remote control and 32pcs detectors 4)More advanced 7.02 GSM Module ApplicationsWidely used in homes, factories, schools, shops, ... , and controlling appliances, etc.11. EEPROM information protection, information never lost12. Built-in Ni-Lithium battery with auto-switchable between ... power outage.14. Panel using double, triple or quadruple GSM/GPRS wireless industry module, (depends on model) which is ...