<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[So, I have a CO2 sensor that usually runs for hours or days.]]></title><description><![CDATA[<p class="quote-inline">RE: <a href="https://mastodon.energy/@Sustainable2050/116705055922789451" rel="nofollow noopener"><span>https://</span><span>mastodon.energy/@Sustainable20</span><span>50/116705055922789451</span></a></p><p>So, I have a CO2 sensor that usually runs for hours or days. I think this sensor was developed for indoor climate measurements in production or office environments.</p><p>It has a built-in calibration mechanism where I need to provide current CO2 concentration in fresh air. Factory value was 400 ppm. I do this once a year.</p><p>How do other, more precise/scientific CO2 sensors handle this problem? Run a script that gets the latest value from Mauna Loa Observatory, and use that to calibrate the sensor?</p><p><a href="https://mastodon.bsd.cafe/tags/CO2" rel="tag">#<span>CO2</span></a> <a href="https://mastodon.bsd.cafe/tags/sensor" rel="tag">#<span>sensor</span></a> <a href="https://mastodon.bsd.cafe/tags/maunaloa" rel="tag">#<span>maunaloa</span></a> <a href="https://mastodon.bsd.cafe/tags/climateDiary" rel="tag">#<span>climateDiary</span></a> </p><p><a href="https://www.co2meter.com/collections/sensors/products/cozir-ambient-10000-ppm-co2-sensor?variant=840094580756" rel="nofollow noopener"><span>https://www.</span><span>co2meter.com/collections/senso</span><span>rs/products/cozir-ambient-10000-ppm-co2-sensor?variant=840094580756</span></a></p>]]></description><link>https://forum.fedi.dk/topic/6b2ca650-b532-4e62-98a4-259b8f2f8057/so-i-have-a-co2-sensor-that-usually-runs-for-hours-or-days.</link><generator>RSS for Node</generator><lastBuildDate>Thu, 25 Jun 2026 12:54:28 GMT</lastBuildDate><atom:link href="https://forum.fedi.dk/topic/6b2ca650-b532-4e62-98a4-259b8f2f8057.rss" rel="self" type="application/rss+xml"/><pubDate>Sat, 06 Jun 2026 21:03:56 GMT</pubDate><ttl>60</ttl></channel></rss>