I know you need this.

Just print the files and paste them with few superglue drops, I did in PETG using fuzzy skin. 

Once ready put in the thermometer hygromether, the holes are to leave the sensors open.

This one is compatible with this one (NOKLEAD is the brand, largely available), but you can buy one hydentical from Aliexpress/Amazon/Temu, just search for thermometer/hygromether and you'll find it with ease.

Some links:

https://www.amazon.com/NOKLEAD-Indoor-Thermometer-Hygrometer-Temperature/dp/B0B3G8MP4K/ref=sr_1_5?crid=1YR2F2QEBJMF4&dib=eyJ2IjoiMSJ9.tk7fiO3DpoomJhZuHbp1nMS7b3guSmlojeygTsnM2uoJAkTJ6KUes4hzuaNBkpxwneYLvlZTtGzmlotkA7k3Pi72kCyoER7L7AK7rfvc5qysK3dv6C1efeihV7bgqpuCjZeX2ermE8bpvu5yTxktU76vDwgRWlTfEJpC0pn1-3snpncU7oZumJJOwo5KFCjT9kz518k4ja-_pbhargCxZY1OQKJQFi23_x4VsXEuHao-zPSCL6PM7QvplXZXsno3n0hpB_5iL6tkZrVOABxKTTHWh35DutjCStBN3GFUR6o.CswWdGtdf0a_7Crm2W4YuP14RbcnJloMBYmDLkYUG6o&dib_tag=se&keywords=noklead&qid=1708886846&sprefix=noklead%2Caps%2C229&sr=8-5

https://www.amazon.it/NOKLEAD-Termoigrometro-portatile-precisione-temperatura/dp/B08CRV3XXV/ref=sr_1_8?crid=1XFK3XSM74VJM&dib=eyJ2IjoiMSJ9.3oCpp4CrCIIMbxBFZ6IzzbG-T5QsWEdJ5uaRTGnk1Mrp2ENh-sGsQTX0SnoxATNh47bWZKK0_D-jqArh59oqSLHfyplisulg9krzS7gcqmwro1paa2ut2S1q6hFai8sXgJmu78gXlMEjNZatADA_Exy-AusuLwiw1bQ8LzAnukx7h88nrd2CRAvOYgmBOTOvmlgKawenjc8TJ2TfVVt3CloZi7D0NHRUphhrYBp2cEiw8c3d1bqrLjzkaxb-L2NpoRgH8QCZwy4dEWbYNX7CiZ9eO0qvF-OiCcsiIaTQH2A.0EldYTK-GR3wqj6ZhrKU5d9RXZz9Y3I5xYdNoQuAcG4&dib_tag=se&keywords=igrometro&qid=1708886799&sprefix=igrometro%2Caps%2C120&sr=8-8

Enjoy, download and share if you like this,