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If you got any rudimentary DIY skills you can't beat a homebuilt ala OXY HACKER (www.airspeedpress.com) or OXYCHEQ. Takes an hour or two to build, $100 tops, works just like the $400 commercial models, and can be calbrated to work with any sensor so when replacement time comes around you aren't stuck with the manfacturers replacement but can use whatever the current hot tip is. This is a good thing, because some of the newer analyzers on the market seem to be using off-brand sensors now that nitrox is popular enough to spawn dedicated units, which will not last as long as a top quality, say Teledyne, industrial/medical sensor, and can only be replaced with one bought from the manufacturer. This can be a real problem if the sensors are no good - you have to keep replacing a bad one with one that isn't much better. OMS is rumored to be having such problems now. Built-in sensors etc seem convenient but are a pain at replacement time. The ones which sample direct without a sampler save time and money, but you can do the same thing with the .75ยข regulatorless direct sampler in the new Oxy Hacker. I don't consider one-button calibration a big plus, because I find the calibrating procedure provides an ongoing check on the sensors health - how far off it is and how fussy it is to recalibrate gives a good idea of how long it has left. >Hi list,I'm looking to buy a new O2 anylizer.I'd like some opinions on which >one is best,best buy,best made ect.Are all the makes available in Canada,how >much are replacement sensor's and what are the best features.Thank's in >advance,Randy > -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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