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I really like the fact that it doesn’t
try to display all the data at once like some do. It just shows the info you
need at the moment and in large easy to read numbers. Using an altimeter like this would allow a
person to: (1) Check barometric pressure before closing the hatch. Note barometric
pressure on a dive slate (or set altimeter to “zero”). (2) Close the hatch with a shock chord and use an electric air pump to expel
cabin air through a check valve and out of the sub. This gives a tight seal on
the hatch without mechanical
latches. Make a note of this altitude on the slate also. (3) Conduct the dive while monitoring cabin pressure to make sure it
remains below barometric pressure at the surface. (or just below “zero”). (4) Upon returning to the surface, equalize pressure and open the
hatch. (5) In the event of an over pressure situation, the hatch (held down
with only a shock chord) will “burp”, releasing excess pressure
like a very large check valve. Greg From: owner-
Not sure why, but sometimes links that you
copy and paste just don’t work. Anyway, the model # is : WS-108C It’s cheap, has large numbers, is
accurate to 3ft increments and costs less than $30. Greg From: owner- Greg, I just get the message "Web page cannot be
found." -Jim In a message dated 4/25/2012 10:12:33 A.M. Central
Daylight Time, greg@precisionplastics.com
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