... The GSM SMS Controller-Alarm is a very simple device which can be used for authorized door access, ... Power CurrentMax:500mA Type :50mASIM CardSupporting 3V SIM CardGSM Antenna50 Ω SMA Antenna interface, Cable ... 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 ...