Electronics > Projects, Designs, and Technical Stuff

Waterproofing a small microphone

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ollihd:
Hi everyone,

I'm trying to completely waterproof a shot timer (used in shooting sports to register shots). The small mic and speaker have an opening to them (of course) and I was wondering would there be a material that I could use to cover that opening, but still let sound through? Everything else I can just coat with an electronics "waterproofing" spray.

Dubbie:
Does it have to be submerged or just splash proof? Will make a difference to approach taken.

ollihd:
Only splash/normal rain would be enough. Won't be submerged.

soldar:
A plastic bag?

rdl:
Gore-Tex or maybe some other fine woven water repellent material.

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