[PSUBS-MAILIST] FW: O2 and CO2 sensors

[Jon Wallace via Personal_Submersibles]

 Honestly I don't, however 5000ppm seems to be industry standard limit for CO2 so I'm not convinced there's any reason to measure higher than that.  Frankly, if you get to 5000ppm then it indicates to me a problem with life support and surfacing is the right course of action.  No need to wait to see if it goes higher than that.
Jon

    On Tuesday, October 24, 2023 at 04:26:17 PM EDT, Alan James via Personal_Submersibles <personal_submersibles at psubs.org> wrote:  
 
 Thanks Jon,Can you remember what ABS or DNV-GL require re range of monitoring? I am tempted to buy 2 of the $26- infrared units on Ali & set them up & compare their outputs.The specs seem good & waterproof.These are 0-5000ppm.Regards Alan

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