RE: [PSUBS-MAILIST] digital altimeter

["Greg" <greg@precisionplastics.com>]

The WS-108 has a "zero clearing function for relative altitude measurement".
This is so hikers can keep track of their starting elevation.





-----Original Message-----
From: owner-personal_submersibles@psubs.org
[mailto:owner-personal_submersibles@psubs.org] On Behalf Of Jon Wallace
Sent: Thursday, April 26, 2012 11:31 AM
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] digital altimeter


The one thing the WS-108C doesn't provide which is very convenient for 
monitoring cabin pressure, is the change in pressure relative to a 
starting point.  Alec's analog altimeter solution and the barometer I 
will be using are both configured to show change in pressure at a 
glance.  But for $25 I suppose I could exercise my brain and do a little 
math.  By the way, the barometer sensor I purchased from digikey cost 
$30.  When you look at all the functions of the WS-108C it becomes clear 
what mass production can do for the price of a product.




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