Twice in as many weeks I have read of unplugged home freezers causing food losses. Are there inexpensive warning devices that alert to AC power failures?
Could not find a description or discussion but I did find one for sale at sixty bucks.
Here's an Indoor/Outdoor Thermometer with an temperature alarm for the "outdoor" sensor.
When set for upper & lower temperature set-points, it will sound an alarm whenever either set-point is reached.
(temperature is out of set limits)
-58F to +158F
-50C to +70C
Freezer upper = 10F
Freezer lower = -10F
Fridge upper = +50F
Fridge lower = +30F
Hot Water Heater (Boiler) upper +155F
Hot Water Heater (Boiler) lower +125F
Alarm will sound if not within those ranges.
Indoor/Outdoor Thermometer w/upper & lower temperature alarm $ 8.29 w/ free shipping