Sentinel Home

Use your Android device to remotely monitor your home's temperature, power and state. Set temperature limits to be notified when your home becomes too hot or cold. Receive power failure/restored notifications. Receive snapshot photos of the area. Can use cellular network on power fail, so you're always connected!

features:
- Indoor and outdoor temperature display in Celsius and Fahrenheit
- Event history display
- Low and high temperature notifications
- Power failure and restoration notifications
- Remote photograph with or without flash
- Chat, communication via yahoo messenger
- remotely check current temperature of the home
- remotely check current temperature of the area
- remotely adjust settings
- remotely take a picture of the device surroundings
- Weather provided by Yahoo
- Much more to follow

Responds to instant messages, only from administrator's account. Communications requires a Yahoo Messenger account for the device and a separate Yahoo Messenger account for the administrator.
Gathers outside temperature from Yahoo Weather using country and postal code.

Best with Android 2.3.4 Gingerbread (and above). Features may be limited with version 2.3.3 and below.
Thus, older, unused devices can be re-purposed to monitor your home, leaving your current devices free for continued use.