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

[Larry Brown]

Green Version!
Pick up empty beer or soda can off stream river bank (Should not be hard to 
find in NJ), add small rocks, tie string to pull tab, drop in water, fill, 
lift, insert thermometer, read, recycle can or use over ;-)
Larry Brown



At 01:33 PM 4/22/2011 -0400, you wrote:
>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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