thermometer to take temp readings of water. I am sometimes surprised by what I would guess the water temp to be and what it actually is.
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5 to 6 to 7 ft under the surface|
Posted by: willi_h2o on May-04-13 5:04 PM (EST)
Posted by: CEWilson on May-05-13 8:13 AM (EST)
The IR thermometer gives faster readings than any immersion unit, but, as pointed out, that doesn't tell us much about deeper water, and for our purposes, a submersible that can lower to, say 6 ft is too expensive, bulky, etc to be practical for paddlers.
So all paddlers are ony 4 ft tall...?|
Posted by: willi_h2o on May-05-13 8:13 PM (EST)
Limits of Infra Red thermal sensing|
Posted by: plaidpaddler on May-06-13 7:50 PM (EST)
Infrared Sensors work best with black body, carbon structures. They work poorly with shiny metal surfaces and liquid surfaces. For copper tubing its always best to color the surface with a black grease pen. For liquids they are just poor. Best to shoot the same flat object submerged in the liquid long enough to reach water temperature.
Posted by: RockyRaab on May-07-13 5:04 PM (EST)
I bought a $4 Harbor Freight digital thermometer, stuck the probe lengthwise through a wine cork and float it in my kayak scupper. After you push the button, it stays on for a couple minutes before shutting itself off. Works just fine for surface temps.
Posted by: tkamd on May-08-13 11:25 PM (EST)
I just use a digital meat thermometer, accurate enough,, only care about the first couple of feet, cause that's all I'm using. tkamd