The Open Electronics GSM/GPRS/GPS modem includes a header for an FTDI USB serial chip and a GSM module. Plug one into your computer and after a few short commands into a terminal, you’ve got a ...
The unit comes with an external antenna that fits on the cabinet. The modem communicates with a central station (ARC) using common format protocols (SIA, Contact ID) or IP over GPRS to SPC Com alarm ...