I made this one which is easy to see from the front door and from the Handy App. As a bonus, it also doubles as a cover for the 2 holes at the back of the machine between the stepper motors or Independent placement and use .
In conjunction with the printer, it is recommended to use the B model file for easy removal of the thermometer. For independent use, it is recommended to use the A model file
I printed in PEGT but should be ok in PLA or PLA+. Printing without support !!!
Uses a commonly available gauge from Amazon/Aliexpress/Taobao/mi.com. Search for “mijia Temperature 2/米家温度计2”.
Enjoy :)