Absolute Automation Knowledgebase » Temperature Guard
Freeze Alarms and all of our other alarm dialer units require a phone line. However this phone line does not have to be a classic analog style land line. As a general rule of thumb, if your phone service has an RJ11 (normal phone jack) jack which you can plug a normal telephone or fax [...]
No, none of the Freeze Alarm or Temperature Guard products can monitor more than one temperature sensor. However the Sensaphone 400 can monitor up to four!
No, the upgraded 20 and 30 hour back up batteries are installed at the factory prior to shipping. If you are in an area with extended or frequent power outages we highly recommend purchasing a unit with the upgraded backup battery.