|GSM SMS alarm
||GSM SMS alarm - module with 5 inputs/sensors.
|GSM call alarm
||GSM call alarm - module with 1 sensor.
|GSM controller v1
|SMS Box project
||This device acts as interface between your microcontroller project and a GSM phone. It handles all modem data communication between the GSM phone and your micro-project. The best thing is that it decodes PDU into TEXT on the fly!
|Tiny GSM alarm system
||GSM based Call and SMS alarm system that can operate standalone or as a GSM alerter module to existing alarm system.