... can be used for authorized door access, controlling gates, switching of remote equipments, car parking systems. Actually the GSM ... ;Weather Stations; River Monitoring and Flood Control;Oil and gas pipelines; 10. Corrosion protection11. Temperatures, water leakage applications ... Temperature Sensor, Door Sensor, PIR Motion Sensor, Smoke Sensor, Gas Leak Sensor, Glass Break S, , ensor, Shock Sensor, ...