The Sensaphone 400 offers an easy way to monitor a remote facility, cabin or vacation home. Installed in a clean indoor environment, it has built-in monitoring for power failures, temperature, and audible alarms. Four external inputs can be connected to various external sensors to monitor temperature, water levels, humidity, intrusion and more. When an alarm is detected, the unit can notify four people by making voice phone calls. It will continue to make phone calls until someone responds. The unit also includes nonvolatile memory and a 24-hour battery backup with user-installed batteries. FEATURES: Monitor 4 conditions, plus power failure and sound level. Notify 4 people with custom voice phone calls. Control a thermostat or other device automatically, manually, even remotely. INPUT ZONES: Flexible inputs support: Normally Open or Normally Closed contacts, Temperature sensors: -20 to 150 degrees F. Automatic input type configuration. Programmable recognition times. VOICE MESSAGES: Built-in vocabulary for keypad programming and sensor readings. Record custom voice phrases to describe input zones. MIC: Internal microphone for voice recording. Can also be used for remote listen-in. OUTPUT RELAY: Low voltage NO/NC output relay included. Manual or automatic alarm response switching. REMOTE ACCESS: Call in with any touch-tone phone to check status of monitored conditions. Make programming changes remotely. Remotely control the output relay. LOCAL ACCESS: Keypad and speaker for local programming. Voice-prompted. Password-protected. COMPATIBILITY: The Sensaphone 400 is a direct replacement for the model 1104 and CottageSitter. POWER: Comes with plug-in power supply. 24-hour backup using 6 size C alkaline batteries (not included). Monitors for power failure. COTTAGESITTER: The built-in relay can remotely change the temperature of a dual setback thermostat.