
I put 2 of these in the basement. You haven't done anything. My basement gets wet when it rains, so it gets a lot of moisture, but they don't absorb that moisture.

Detector Bosch GMS 120 Professional
28 Review

Room temperature and humidity sensor Aqara Temperature and Humidity Sensor white
25 Review

Thermometer B.Well WF-4000 white
57 Review

VIVREAL 4 In 1 Stud Finder Wall Scanner With LCD Display - Center Finding Beam Finder And Sound Warning For Wood, AC Wire, And Metal Studs (Black/Silver)
24 Review