Re: [PSUBS-MAILIST] a 1atm dry sub or a potential coffin?

[VBra676539@aol.com]

In a message dated 12/24/2003 12:41:07 AM Eastern Standard Time, 
ojaibees@ojai.net writes:

<< What's a Dragger tube?  and where do I get one!
  >>
That is DRAEGER and you can buy them off the net, or nearly anywhere else. 
There is also a company called ACURO which builds similar units. They are hand 
or battery operated atmospheric samplers. You carry a pack of glass tubes (a 
little smaller than a pencil) filled with chemical--break the tip off and pump 
air through it and get the percentage of whatever you are measuring for on a 
scale painted in percent (usually) on the tube--then discard. We used to use 
them for CO2 because the constant monitors were so expensive--and always carried 
them in the emergency kit for backup. You can buy Sampling Tubes (as they are 
called) for just about any gas you can think of (except for maybe the bio 
hazardous post nacho and beer kind). Very nice units. You should never dive 
without one, no matter how good your O2 meters are.
Vance