... with sms intelligent controllerto switch on/off home appliance and equipment by a SMS GSM ... Unmanned machine rooms;17. Control room application;18. Automation System, M2M;19. GSM Access Control System, GSM ... Sensor, Oil Overflow Level Sensor, Water Leak Sensor, Temperature Sensor, Door Sensor, PIR Motion Sensor, Smoke Sensor, Gas Leak Sensor, Glass Break Sensor, Shock Sensor, Power failure sensor ...