[PSUBS-MAILIST] Backup CO2 Meter

[hank pronk via Personal_Submersibles]

 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.  Hank
    On Thursday, July 16, 2020, 9:58:33 AM MDT, James Frankland via Personal_Submersibles <personal_submersibles at psubs.org> wrote:  
 
 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!
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.  

On Thu, 16 Jul 2020 at 16:15, Jon Wallace via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

 Check out this one.  Not sure what the operating voltage is, but I'm guessing the transformer brings it to 9v or so.
TIM10 Desktop CO2, Temp. & Humidity Monitor

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TIM10 Desktop CO2, Temp. & Humidity Monitor

The TiM10 continuously shows carbon dioxide, temperature and relative humidity levels so you can monitor the qua...
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    On Thursday, July 16, 2020, 09:36:15 AM EDT, James Frankland via Personal_Submersibles <personal_submersibles at psubs.org> wrote:  
 
 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.




On Thu, 16 Jul 2020 at 12:04, hank pronk via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

                                             HT-2000 Digital CO2 Meter Detector 9999ppm Temperature Relative Humidity Monitor Data Logger                                     
    On Thursday, July 16, 2020, 1:48:45 AM MDT, James Frankland via Personal_Submersibles <personal_submersibles at psubs.org> wrote:  
 
 Hi Jon.Looking for a complete unit.

On Wednesday, 15 July 2020, Brian Cox via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

These guys are good
https://www.co2meter.com/ collections/products
Brian




--- personal_submersibles at psubs. org wrote:

From: Jon Wallace via Personal_Submersibles <personal_submersibles at psubs. org>
To: Personal Submersibles General Discussion <personal_submersibles at psubs. org>
Subject: Re: [PSUBS-MAILIST] Backup CO2 Meter
Date: Wed, 15 Jul 2020 18:34:52 +0000 (UTC)

 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?
    On Wednesday, July 15, 2020, 12:20:09 PM EDT, James Frankland via Personal_Submersibles <personal_submersibles at psubs. org> wrote:  
 
 Hi All,
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.
Anyone got any ideas for a reasonably priced backup? It needs to go up to at least 1% really.
What are other people using?Thanksjames

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