Re: [PSUBS-MAILIST] Which gases to detect?

[Jon Wallace <jonw@psubs.org>]

True, however all CO2 monitors are expensive and when you add the cost of a separate O2 monitor and then consider some of the features provided by Analox and Crowcon it's not too difficult to justify going with a single all inclusive unit.

For example, Crowcon sells a single gas (CO2) monitor called the GASMAN with retail prices anywhere from $650-$800 (US).  Now add an O2 sensor from OxyCheq for around $300 (US) and you're above the cost of the Crowcon T3 with O2 and CO2 sensors included.  Even if you purchase the OxyCheq "El Cheapo" unit and build it yourself the combined cost with a CO2 monitor is going to be in the $500-800(US) range.  Also consider that the Analox and Crowcon units allow you to set alarms and collect logging information via computer interface, and the Analox aspira unit is specifically certified for submarine use.  Those may be nice features you can use and may be worth the extra money.

Jon



On 4/26/2011 11:05 AM, James Frankland wrote:

Hi Jon,

Yes, that was the one i was thinking about.  Looks like a nice unit but blimey its expensive.  I'll keep looking around first, to see what else is available.  

Thanks

James

On 26 April 2011 14:50, Jon Wallace <jonw@psubs.org> wrote:

Hi James,

I sent email to members back in early-mid march.  Members can purchase the Analox Aspira for $1200 and the Crowcon T3 for $899 through PSUBS.  I have not added an order page for them yet so please send me an email if either one interests you.  If we had a bulk order of 10 or more I might be able to get slightly lower prices, but I can't guarantee that.  I could put up cash for one of either unit if that gets the ball rolling.

Jon