... assets with low cost solution. The GSM SMS Controller-Alarm suitable for below applicationsSecurity Alarm System applications ... °CHumidity rangeRelative humidity 20~95% (condensation free)Weight320g** Electrical Characteristics @25°C Standard Package listGSM Controller X 1Power supply ... Sensor, Oil Overflow Level Sensor, Water Leak Sensor, Temperature Sensor, Door Sensor, PIR Motion Sensor, Smoke Sensor ...