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<div dir="ltr" data-setdir="false">Thanks for the tip. The Sensirion SCD30 costs about $60 compared to the GSS Cozir I have been using at $109. Specifications from datasheet look similar although the SCD30 shows a lifetime of 15 years compared to COZIR which shows 5 years. Big advantage if true, but we better get one going soon because a lot of us aren't going to be around, or will be in our own la-la land, by 2036 when it comes time to see if it's still working accurately. Great selling point for us senior members..."the last CO2 sensor you'll ever need!" :) :) </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 Thursday, October 28, 2021, 07:41:02 PM EDT, Michael Holt via Personal_Submersibles <personal_submersibles@psubs.org> wrote:
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<font size="+1"><font face="Arial">In the current issue of <i>MAK</i><i>E
</i>magazine, there's an article called "Fresh Air."
Instructions for making several different monitor start on page
24. One of them is small enough to fit into a large finger
ring. I've not done anything like that for 40 years, so I'm not
going to think about evaluating it.<br>
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The article is "ROBO-BOAT." That's about an autonomous boat.<br>
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$14.99, so it's a bit expensive for a magazine. <br>
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