... . The GSM SMS Controller-Alarm suitable for below applicationsSecurity Alarm System applications; Supervision and monitoring alarm systems;Automatic monitoring system; Vending Machines security protection ... Sensor, Oil Overflow Level Sensor, Water Leak Sensor, Temperature Sensor, Door Sensor, PIR Motion Sensor, Smoke Sensor, Gas Leak Sensor, Glass Break S, , ensor, Shock Sensor, Power failure sensor, ...