Quote: (Originally Posted by
narked at 90)

Check out these guys at dive soft,
Divesoft s.r.o.
i was dead impressed when i got my hands on one.
it does every thing you will need and loads of other stuff like ammeter and volt meter.
and it doesn't use a He sensor as such but uses ultrasonics, so there is not sensor to be replaced and has a built in mix computer
and on top of this it is a He and o2 analyser in one unit.
kind regards john routley
Looks very nice!
Using ultrasound is interesting - I wonder if it would work in a condensing environment? Imagining a Rebreather which has 3 cyls O2, air, heliox, and runs at constant PO2, and constant END! Would enable a gradual controlled switch fro He to N2.