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Topic: Weather sealing a PIR motion sensor ideas? (Read 808 times) previous topic - next topic


Use a conformal coating, this is used for Marine electronics and "permanent" connectors. The PIR "lens" is probably OK outside, unless the device is in the baking sun all the time, however the external circuit and connections can collect humidity and therefore corrode, so the conformal coating is pretty effective against that.

I have found that silicone can affect sensitive circuits (due to capacitance?).


Don't breath in the magic smoke!
Don't breath in the magic smoke!

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