If the Arduino loses sight of the DHT22 temperature sensor inside the freezer, then the alarm sounds continuously. And if [Adam] is ever curious about the temperature in the freezer, it’s right ...

Inside his gadget is a simple temperature sensor, an ATtiny841 ... [Domen] says that he’s going to add a low-temperature alarm too, which will add a second alarm for when the milk has cooled ...

The feature-rich T-1000 IntelliTemp Temperature Sensor is the ideal choice for accurate ambient temperature measurement in any environment. Allows the user to set high and low temperature standards.

To do that, it measures the temperature inside the cabin and outside the cabin. If the temperature outside is 95, and you ...