Making a Dumb Fridge Smart

There’s about $400 of meat, milk, and miscellaneous condiments in my kitchen fridge at any given time. It runs 24/7, makes a quiet humming noise, and gives no indication when something’s wrong until you open the door three days later and recoil. The freezer compartment is worse: a slow failure can defrost everything before you notice the puddle. I already had a TP-Link P110 smart plug on the fridge — originally for energy monitoring, because I’m on a spot-priced electricity tariff and I like knowing what each appliance costs me. But the same wattage stream that tells you “the fridge used 1.4 kWh today” tells you almost everything you need to know about whether the fridge is healthy. ...

May 3, 2026 · 9 min · Justin