<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div></div><div>Jon,</div><div>sorry didn't see the second email.</div><div>I had previously looked at the CO2 sensor & seen there were options for a module</div><div>With tube attachments. I presume you would then need to pump the air in!</div><div>Have you thought about just putting a conformal coating on the circuit board &</div><div>mounting it with PCB stand-offs.</div><div>Perhaps make note of this option in the build instructions.</div><div>Alan</div><div><br>On 5/12/2020, at 8:20 AM, Jon Wallace via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br><br></div><blockquote type="cite"><div><div class="ydp470974ddyahoo-style-wrap" style="font-family:times new roman, new york, times, serif;font-size:16px;"><div></div>
<div dir="ltr" data-setdir="false">Ok, not really blowing on them.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">In this case Alan, I will simply drill a bunch of small holes into the enclosure to allow air circulation. I wasn't able to find a small enough ventilated enclosure that made sense. This one happened to be perfect size for the PCB.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Jon</div><div dir="ltr" data-setdir="false"><br></div><div><br></div>
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On Friday, December 4, 2020, 01:35:26 PM EST, Alan James via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:
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<div>Looks great Jon. </div><div>How are you getting the air to flow across them in the enclosure? </div><div>Alan</div><div><br clear="none"></div><div><br clear="none"></div>
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