<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"></head><body>How do you use an altimeter to determine CO2 levels???<div><br></div><div>Keith T.</div><div><br></div><div style="font-size:100%;color:#000000"><!-- originalMessage --><div>-------- Original message --------</div><div>From: hank pronk via Personal_Submersibles <personal_submersibles@psubs.org> </div><div>Date: 7/16/20 10:55 AM (GMT-08:00) </div><div>To: James Frankland via Personal_Submersibles <personal_submersibles@psubs.org> </div><div>Subject: Re: [PSUBS-MAILIST] Backup CO2 Meter </div><div><br></div></div><div class="ydp9e301dabyahoo-style-wrap" style="font-family: Helvetica Neue, Helvetica, Arial, sans-serif; font-size: 13px;"><div></div>
<div dir="ltr" data-setdir="false">James, your altimeter-if you have one, is your back up. I know Alec only uses an altimeter for CO2 reading. David Columbo and I am several dives with just the Altimeter and O2 readings in Montana last summer. </div><div dir="ltr" data-setdir="false">Hank</div><div><br></div>
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On Thursday, July 16, 2020, 9:58:33 AM MDT, James Frankland via Personal_Submersibles <personal_submersibles@psubs.org> wrote:
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<div><div id="yiv3425398211"><div><div dir="ltr">Yes, seen that one also thanks. Think it might be ok for a backup. Says it doesnt meet various regulations and reviews on Amazon are mixed. But its cheap!<div><br clear="none"></div><div>So far that one is in the lead. I'll wait until tomorrow just in case someone comes up with a better suggestion overnight. You never know.</div><div> <br clear="none"></div></div><br clear="none"><div class="yiv3425398211gmail_quote"><div class="yiv3425398211yqt8747262338" id="yiv3425398211yqt82641"><div class="yiv3425398211gmail_attr" dir="ltr">On Thu, 16 Jul 2020 at 16:15, Jon Wallace via Personal_Submersibles <<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br clear="none"></div><blockquote class="yiv3425398211gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex;"><div><div style="font-family:new times, serif;font-size:16px;"><div></div>
<div dir="ltr">Check out this one. Not sure what the operating voltage is, but I'm guessing the transformer brings it to 9v or so.</div><div dir="ltr"><br clear="none"></div><div dir="ltr"><span><a rel="nofollow" shape="rect" target="_blank" href="https://www.co2meter.com/products/tim10-desktop-co2-temp-humidity-monitor?utm_medium=cpc&utm_source=google&utm_campaign=Google%20Shopping&gclid=Cj0KCQjw9b_4BRCMARIsADMUIyqYfY2gSWbBMp2xj9ASOmeGGkpsnm67YgCIDq469755nEY53CjlEzkaAg_7EALw_wcB">TIM10 Desktop CO2, Temp. & Humidity Monitor</a></span><div><br clear="none"></div><div id="yiv3425398211gmail-m_1779649134818831060ydpa641ebabenhancr_card_5112019322" style="max-width:400px;font-family:YahooSans, Helvetica, Arial, sans-serif;"><a rel="nofollow" shape="rect" target="_blank" href="https://www.co2meter.com/products/tim10-desktop-co2-temp-humidity-monitor?utm_medium=cpc&utm_source=google&utm_campaign=Google%20Shopping&gclid=Cj0KCQjw9b_4BRCMARIsADMUIyqYfY2gSWbBMp2xj9ASOmeGGkpsnm67YgCIDq469755nEY53CjlEzkaAg_7EALw_wcB" style="text-decoration:none;color:rgb(0,0,0);"><table border="0" cellpadding="0" cellspacing="0" style="max-width:400px;"><tbody><tr><td colspan="1" rowspan="1" width="400"><table border="0" cellpadding="0" cellspacing="0" width="100%" style="max-width:400px;border-width:1px;border-style:solid;border-color:rgb(224,228,233);border-radius:2px;"><tbody><tr><td colspan="1" rowspan="1" valign="top" bgcolor="#000000" height="175" style="background-color:rgb(0,0,0);background-size:cover;border-radius:2px 2px 0px 0px;min-height:175px;"><table border="0" cellpadding="0" cellspacing="0" style="width:100%;"><tbody><tr><td colspan="1" rowspan="1" valign="top" bgcolor="transparent" style="background-color:transparent;border-radius:2px 2px 0px 0px;min-height:175px;"><table border="0" height="175" style="width:100%;min-height:175px;"><tbody><tr><td colspan="1" rowspan="1" style="text-align:left;padding:15px 0px 0px 15px;vertical-align:top;"><span style="color:rgb(255,255,255);font-size:16px;font-weight:600;">$129.00</span></td><td colspan="1" rowspan="1" style="text-align:right;padding:15px 15px 0px 0px;vertical-align:top;"><div></div></td></tr></tbody></table></td></tr></tbody></table></td></tr><tr><td colspan="1" rowspan="1"><table align="center" border="0" cellpadding="0" cellspacing="0" style="background:rgb(255,255,255);width:100%;max-width:400px;border-radius:0px 0px 2px 2px;border-top:1px solid rgb(224,228,233);"><tbody><tr><td colspan="1" rowspan="1" style="background-color:rgb(255,255,255);padding:16px 0px 16px 12px;vertical-align:top;border-radius:0px 0px 0px 2px;"></td><td colspan="1" rowspan="1" style="vertical-align:middle;padding:12px 24px 16px 12px;width:99%;font-family:YahooSans, Helvetica, Arial, sans-serif;border-radius:0px 0px 2px;"><h2 style="font-size:14px;line-height:19px;margin:0px 0px 6px;font-family:YahooSans, Helvetica, Arial, sans-serif;color:rgb(38,40,42);max-width:314px;">TIM10 Desktop CO2, Temp. & Humidity Monitor</h2><p style="font-size:12px;line-height:16px;margin:0px;color:rgb(151,155,167);">The TiM10 continuously shows carbon dioxide, temperature and relative humidity levels so you can monitor the qua...</p></td></tr></tbody></table></td></tr></tbody></table></td></tr></tbody></table></a></div><div><br clear="none"></div><div><br clear="none"></div><div><br clear="none"></div><div><br clear="none"></div><div><br clear="none"></div><br clear="none"></div><div><br clear="none"></div>
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On Thursday, July 16, 2020, 09:36:15 AM EDT, James Frankland via Personal_Submersibles <<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:
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<div><div id="yiv3425398211gmail-m_1779649134818831060ydp27c27efeyiv7037876668"><div><div dir="ltr">That one looks good Hank, seen that one before. Just a bit pricey. I ws kind of hoping to keep the cost under £100 as its only a backup.<div><br clear="none"></div><div><br clear="none"><div><br clear="none"></div><div><br clear="none"></div></div></div><br clear="none"><div><div id="yiv3425398211gmail-m_1779649134818831060ydp27c27efeyiv7037876668yqt46691"><div dir="ltr">On Thu, 16 Jul 2020 at 12:04, hank pronk via Personal_Submersibles <<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br clear="none"></div><blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex;"><div><div style="font-family:Helvetica, Arial, sans-serif;font-size:13px;"><div></div>
<div dir="ltr"><span><a rel="nofollow" shape="rect" target="_blank" href="https://www.amazon.ca/D%C3%A9tecteur-Num%C3%A9rique-Temp%C3%A9rature-dHumidit%C3%A9-Enregistreur/dp/B07D3QXC21/ref=sr_1_12?dchild=1&keywords=co2+meter&qid=1594897320&sr=8-12"> HT-2000 Digital CO2 Meter Detector 9999ppm Temperature Relative Humidity Monitor Data Logger </a></span><br clear="none"></div>
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On Thursday, July 16, 2020, 1:48:45 AM MDT, James Frankland via Personal_Submersibles <<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:
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<div><div id="yiv3425398211gmail-m_1779649134818831060ydp27c27efeyiv7037876668gmail-m_-2055626464804772596yiv2557947593"><div>Hi Jon.<div>Looking for a complete unit.<br clear="none"><br clear="none">On Wednesday, 15 July 2020, Brian Cox via Personal_Submersibles <<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br clear="none"><div id="yiv3425398211gmail-m_1779649134818831060ydp27c27efeyiv7037876668gmail-m_-2055626464804772596yiv2557947593yqt47305"><blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex;"><div style="font-family:Arial, sans-serif;font-size:10pt;"><font size="2"><font face="Arial, sans-serif">These guys are good</font></font><div><font face="Arial, sans-serif" size="2"><br clear="none"></font></div><div><font face="Arial, sans-serif" size="2"><a rel="nofollow" shape="rect" target="_blank" href="https://www.co2meter.com/collections/products">https://www.co2meter.com/ collections/products</a></font></div><div><font face="Arial, sans-serif" size="2"><br clear="none"></font></div><div><font face="Arial, sans-serif" size="2">Brian</font></div><div><font face="Arial, sans-serif" size="2"><br clear="none"></font></div><div><font face="Arial, sans-serif" size="2"><br clear="none"></font><div style="font-family:Arial, sans-serif;"><font size="2"><br clear="none"></font></div><div style="font-family:Arial, sans-serif;"><font size="2"><br clear="none"></font><br clear="none"><span style="font-size:10pt;">--- <a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs. org</a> wrote:</span><br clear="none"><br clear="none"><span style="font-size:10pt;">From: Jon Wallace via Personal_Submersibles <<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs. org</a>></span><br clear="none"><span style="font-size:10pt;">To: Personal Submersibles General Discussion <<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs. org</a>></span><br clear="none"><span style="font-size:10pt;">Subject: Re: [PSUBS-MAILIST] Backup CO2 Meter</span><br clear="none"><span style="font-size:10pt;">Date: Wed, 15 Jul 2020 18:34:52 +0000 (UTC)</span><br clear="none"><br clear="none"><div style="font-size:16px;font-family:serif;"><div></div>
<div dir="ltr">Are you looking for a sensor that you can interface to a microprocessor, or an all-in-one monitor that contains both the sensor and display?</div><div><br clear="none"></div>
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On Wednesday, July 15, 2020, 12:20:09 PM EDT, James Frankland via Personal_Submersibles <<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs. org</a>> wrote:
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<div><div><div dir="ltr">Hi All,<div><br clear="none"></div><div>Im going to get another CO2 monitor, as a backup. I have decent, properly calibrated one, so i dont want to break the bank with this one.</div><div><br clear="none">Anyone got any ideas for a reasonably priced backup? It needs to go up to at least 1% really.</div><div><br clear="none"></div><div>What are other people using?</div><div>Thanks</div><div>james<br clear="none"><br clear="none"></div>
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