... control and 32pcs detectors 4)More advanced 7.02 GSM Module ApplicationsWidely used in homes, factories, schools, shops, convenience stores, ... .14. Panel using double, triple or quadruple GSM/GPRS wireless industry module, (depends on model) which is stable and reliable.Technical ... than 25mA 3. Alerting current: less than 450 mA 4. Wireless frequency: 315/433MHZ, 2262/1.5--4.7M, EV1527/300K. 5. GSM ...