... Network. This is very useful to street light control, wellhead control, BTS environment monitoring, ... pipelines;10. Corrosion protection;11. Valve controls;12. Wellheads;13. Energy saving, street lights control ... Sensor, Oil Overflow Level Sensor, Water Leak Sensor, Temperature Sensor, Door Sensor, PIR Motion Sensor, Smoke Sensor, Gas Leak Sensor, Glass Break Sensor, Shock Sensor, Power failure sensor ...