This is the Watchdog Home Monitor: a handy kit that lets you monitor your home for temperature, humidity, leaks, and power outages. It doesn’t require an app or subscription to work. You simply get notified via a text message or email when there is an unexpected event.
The Watchdog Home Monitor sensor lets you know when temperature and humidity are too high and low. Alerts can be customized based on the type of issue. You can set up this gadget with a WiFi capable device, including your phone.[HT]