GSM contoller is a low cost solution to Remote Control and Monitoring via your mobile phone. It has 2 relay outputs and 4 contact closure inputs. Outputs can be used to control lighting, central heating boiler, pumps etc and the inputs can be connected to thermostats, security sensors and flood detectors. An optional wireless interface allows communicate with an expanding range of security and fire sensors, heating thermostats for temperature control and…    read more