[Adam]’s homemade freezer failure alarm is a cheap and open solution that ticks all the boxen. It runs on mains power and uses a 100dB piezo buzzer for ear-splitting effectiveness to alert [Adam ...

At some point, your refrigerator and freezer are going to lose power. Lightning storms, natural disasters, construction accidents, and planned system outages can all lead to power failure and a ...

Leaving your freezer door open accidentally is a great ... and if the door remains open for two consecutive checks, it raises the alarm. A notification is sent to [Guy] via WiFi so that he can ...