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>David Giddy wrote: >My understanding is that most of the rebreathers use triple redundant O2 >sensors. If these are the same type as used in O2 meters (E.G: miniox), then >this could become a significant cost. Here in Oz, a Miniox sensor retails at >around $A200. Apparently they last a year or so if used frequently. Hence you >may be looking at upwards of $A600 / year in oxygen sensors alone! The documentation for the Biomarine Seapack 1000 states that it uses 3 sensors which have a life span of 6 months. Hence your cost might be $A1200/Year! You also have to consider scrubber, gas, biocide, batteries and moisture absorbent. Some of this may be recycleable. I also wonder if the electronics are subject to flooding. I spend an hour preparing my camera and flashes before every dive and have still managed to flood everything at least once. I usually find that with electronics a few drops of seawater go along way! Barrie Kovish Vancouver, Canada bmk@ds*.bc*.ca*
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