... 12. Wellheads, boat, vehicle;13. Energy saving, street lights control system;14. Valve controls;15. Transformer stations; 16. Unmanned machine ... :Water Overflow Level 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, ...