The Sensaphone 800 Monitoring System offer small-business owners, vacation property owners, and other property managers an easy and inexpensive way to monitor a remote facility. These systems notify you if they sense undesirable temperatures or other conditions. When the system is connected to a standard telephone line, you can record custom “Alert Condition” notifications and receive alarm messages in your own voice. This system can set off a local alarm if a phone line is cut and control a thermostat to adjust site temperature between two set points. Nonvolatile memory retains system settings in the event of power loss. You can call in by phone to get the status of each monitored condition. The system will also allow you to listen in to sounds on site.