The helium concentration is irrelevent, simply put, the more He the better.=
 There is no reason to need to know what your exact He concentration is, =
you should have a record of how much you've put in your tanks from your =
fill calcs.=20

At worse you might be a bit more nacred if you are under, going over will =
not do anything. And if you don't know what your He% is +/- 10% you should =
not be techdiving. And if you have tanks with an unknown mix you shoud =
dump and start over.

What is important is the O2%. You need to put your money in a high quality =
digital fill pressure gauge and a quality O2 meter.

This is just another worthless toy being produced to squeeze more money =
out of the gullible newby or clueless techdiver. I'm sure it will be a big =
seller to instructors.

   Jim

On Monday, January 24, 2000, Rich Lesperance <richl@uf*.ed*> wrote:
>Yeah, what was the target price range? Something like that would probably =
be
>priced right out of the average diver's budget...
>
>Rich L
>
>
>----- Original Message -----
>From: <Deep1dave@ao*.co*>
>To: <MMikeodin@ao*.co*>; <techdiver@aquanaut.com>
>Sent: Monday, January 24, 2000 5:11 PM
>Subject: Re: Helium sensor
>
>
>> Concerning the Helium sensor that was on display at DEMA,
>>
>> I saw it on display in the Dive-Rite booth.  It was a Helium sensor for
>> testing helium concentration in tanks.  They claimed that it used a
>> differential calculation on the thermal conductivity of air vs. the =
helium
>> mixture.  They claimed an accuracy of +/- 1%.  Sounds interesting.  Any
>> thoughts??
>>
>> David
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