... as Arm or Disarm button, the other 3 inputs can be used as door sensor, motion sensor, temperature sensor, water overflow sensor ... or 0V-3.3V level signal>>Exterior dimension: 95×63×25mm>>Net Weight : 300 g >>>>>Standard Package list: >>GSM Controller x1>>Power ... Level Sensor, Water Leak Sensor, Temperature Sensor, Door Sensor, PIR Motion Sensor, Smoke Sensor, Gas Leak Sensor, Glass Break Sensor, Shock ...