Components needed to build include an esp32c3, OLED display, DHT22 sensor, and air quality sensor. The detailed instructions for assembly, including 3D printing the shell, makes it a fun project ...

That one uses a time-of-flight sensor VL6180X which has a 2mm resolution at best. The laser displacement sensor here has a resolution between 2um and 120um, so one to 3 orders of magnitude better.