Remote GSM Controllers

These devices use GSM Technology to monitor Remote signals. This could be to change an output condition of the device based on a message or input level, or maybe to report alarm status of the input being monitored.

Examples include the VRT012 device, which can be used for authorising door access, controlling gates, switching off remote equipments, car parking systems; activate/deactivate alarm systems etc. or the TWCT20 device which can be used to monitor a couple of Analogue Input Levels and then using pre-defined logic, produce various activities such as message sending or changing a relay status.