AGM GSM Cellular Remote Alarm Module - Freeze Alarms, Internet & Phone Thermostats, Sensaphone, Pool

The AGM GSM Cellular Remote Alarm Module allows you to monitor environmental conditions of remote sites. ... Applications Provide a dial tone to just about ANYTHING! (Standard phones, alarm panels*, etc.) *Cellular dial tones cannot emulate modem-speak ..

www.diycontrols.com