I printed it face down with supports
plenty of space to emboss print below sensor
sensors are available on amazon
https://www.amazon.co.uk/Hygrometer-Thermometer-Humidity-Temperature-Greenhouse/dp/B094N2KM7B/ref=sr_1_7?keywords=humidity+and+temperature+sensor&qid=1646435781&sr=8-7
The author marked this model as their own original creation.