Temperature and humidity measurements are a nice addition ... He decided to take an in-depth look at the DHT11 sensor; which you can get your hands on for under $3 if you know where to look.

Eventually, LEDs and LCDs came along and lowered this significantly, but the king of low power display technologies remains ePaper and eInk displays ... SHT20 temperature and humidity sensor ...

I ended up with a neat little solution, using ... if the temperature is stable. Feeling happy with this result, I repeated the steps to display the humidity in the menu bar alongside the temperature.

Compared to its predecessor, the Mijia Bluetooth Temperature and Humidity Sensor 2, this model features a larger 2.1-inch LCD screen with ... visual comfort indicator using emoji symbols.