Check remotely any electrical device, using SMS message or phone calls!

Remote control based on Quad Band GSM professional.

The C652 is an GSM modem for the supervision and control of remote inputs and outputs.
The device allows to remotely activate, via a mobile 'phone, up to five electric supplies (relay outputs 10A 250Vac) by means of correct SMS messages preceded by a 4 digits password. The relays can be switched for a chosen time (from 1 to 9 seconds) or permanently or up to a reset command. In case of permanent switching, if desired, the status of the relays is stored and reset after a power off and a power on of the device. After it has been switched a relay, the GSM Remote Control replies to the mobile which sent the command with a SMS or making a voice call lasting some ring tone; in the last case the user gets, at no cost (only the ring), the information that the command has been executed. The C652 includes a 'Phone Directory containing 200 entries; the mobile numbers existing in the Directory can activate for two seconds the relay 1 with a plain ring to the device without the engagement of the line and, then, at no cost (Opengate function).
Furthermore, the GSM Remote Control has five digital optocoupled inputs controllable by means a continuous voltage ranging between 10V and 30V or with clean contacts. The state of the inputs can be sensed at every time sending a SMS message. One by one, every input can be set up to raise a warning when it detects the presence or the absence of the tension or it opens or closes a controlled contact. When an input changes state, the C652 sends by its own a warning SMS, including a text customizable for every input, up to a maximum of five mobile numbers. After it has sent the warning SMS, if required, the C652 makes even a voice call, lasting some ring, in order to draw the user attention on the arrival of the message.