I designed this model for a standard mini temp/humidity sensor to snap into and display in a more readable way. 

Prints with the hole-face down, no supports needed.

Originally printed on my Prusa mk4 with the following parameters:

• 0.4mm stock nozzle + input shaping
• 0.2mm layer height, STRUCTURAL preset
• Prusament galaxy black PLA with default settings, except heatbed set to 65deg since my room is cold
• No supports, 2 perimeters, 100% infill

I've tested it with this sensor in particular, but there seem to be many other identical brands and version on Amazon: Amazon.com: 6 Pack Mini Small Digital Hygrometer Thermometer Indoor Temperature and Humidity Meter Gauge with Temp Humidity Sensor Monitor Fahrenheit (℉) for Jars,Home,Room : Appliances