How to waterproof sensor modules?

Question

Automation

For example, such as on this site https://iarduino.ru/shop/Sensory-Datchiki/
Sensors will constantly be in dampness and in the rain, how to protect them from water?

Answer 1

better take advantage of the sim3x offer, roll the modules in epoxy along with a small part of the wires that these modules will connect to the MK. A transparent epoxy is suitable for the light sensor. Enter all wires into the box with MK. Choose a sealed box. The hole through which you will enter the wires must also be filled with epoxy. Also check that the hole is not leaking.
Boxes
Filter selected - ip66 protected
6 = Dust tight 6
= Protected against strong jets

Answer 2

take a colorless nail polish from your wife / sister / girlfriend. cover the desired areas with his own brush.
for home crafts, a normal option + washable with solvents.