[TheForge] Way OT -- remote thermometer for river water

[Ron Childers]

Bruce, Try this: put the thermometer in a vessel and drop it in for a
few minutes after it fills with water then do a fast retrieve with a rod
and reel. The thermal inertia of the water should maintain the
temperature long enough for a reading and not lose or gain enough to
matter. 

-----Original Message-----
From: theforge-bounces at mailman.qth.net
[mailto:theforge-bounces at mailman.qth.net] On Behalf Of Bruce Freeman
Sent: Friday, April 22, 2011 1:24 PM
To: Blacksmithing List Sponsored by ABANA
Subject: [TheForge] Way OT -- remote thermometer for river water

I'm tapping the diverse knowledge of this group for a product I need.

I want to measure the temperature of the water in small rivers.  Purpose
-
kayaking.  I could get right up to some of these and just stick a
thermometer in them, but in most cases it would be a lot more convenient
to
drop a probe in from a bridge -- maybe 20' maximum distance.  But I
can't
just drop a thermometer into the water and pull it out from 20' above
and
get a reading -- the reading would change by the time I read it.

If they'd work, I could use a remote thermometer like this one --
http://www.harborfreight.com/non-contact-pocket-thermometer-93983.html
But
I don't know WHAT temperature I'd be measuring just pointing a device at
a
river.

Any thoughts as to what might work well for such an application?  I'd
need
accuracy within 2* or 3*F, nothing precision.

-- 
Bruce
NJ
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