... . Wellheads, boat, vehicle;13. Energy saving, street lights control system;14. Valve controls;15. Transformer stations; 16. Unmanned machine ... rooms;17. Control room application;18. Automation System, M2M;19. GSM Access Control System, GSM Gate Opener, etc. ... Mainly Features of the GSM SMS Controller-Alarm : 1 relay output (240VAC@3A) can ...