Thermometers

[Rob Ward]

I need a decent thermometer for measuring water temperatures in winter, any recommendations?

 

Last year I took the digital thermometer from home but it was useless and just errored in the cold water.

[wotnobivvy]

Try anyone who sells them for garden ponds. They float and you can attach a piece of string long enough to cast them out and retrieve them

 

They are like this, the one I use in my pond

 

http://www.seapets.co.uk/products/pond-sup...?ref=googlebase

[Anderoo]

Wouldn't you need to know the temperature at the depth you're fishing (or more specifically, what the temperatures are throughout the depth range so you can decide where to fish) rather than surface temperature?

[Rob Ward]

Wouldn't you need to know the temperature at the depth you're fishing (or more specifically, what the temperatures are throughout the depth range so you can decide where to fish) rather than surface temperature?

 

Just on the bottom, target species is a bottom feeder. Castable would be handy.

[robd]

Often wondered if this would be useful. Wouldn’t retrieving it through the warm layers give you a false reading to that of the bottom layer? Would a max/min thermometer be better?

[Denis Skorikov]

I need a decent thermometer for measuring water temperatures in winter, any recommendations?

 

Last year I took the digital thermometer from home but it was useless and just errored in the cold water.

 

 

Hello, you can use this one http://kuban.farmgarden.ru/termometr-victor.html

[Denis Skorikov]

Or maybe this one http://ikf.com.ua/catalog/laboratory/thermometers/?view=336

which has diapason -40 - +200 with accuracy 2 degree

[Phone]

Rob,

 

Or, you could go back to 9th grade. The temperature in a still water lake of any size (below about 10 ft) is always 39 F. Even in summer.

 

What really helps is the temperature differential between structure, margin, and the bottom. Also, even in "still" water there is current. They dynamics of this current will change with other factors in your watercraft (i.e. wind).

 

OTOH, I've never found temperature differential to be real important or as important in a river or stream. It is important I suspect to know the surface temperature of a river.

 

The Department of Natural Resources (DNR) uses one that operates remotely. I'd just guess it is very expensive (it looks expensive). I've never been able to "match" there readings with one that I cast from shore. It warms or cools on retrieval.

 

Angler thermometers are them main devices used when they tell me they can consistantly catch carp in water below 50f. The thermometer is laying in the ice along the bank.

 

Phone

[chesters1]

silly billy i know of a lake thats -3 degrees

remember i said lake not ice meaning its not frozen ,so much for 9th grade ,and the bottom of it could well be warmer than the top.

your probably not be going to "fish" it but it could support some life

the 9th grade or infact "schools" are people trying to force opinions on you ,ignore them

Edited November 30, 2011 by chesters1

[Phone]

chesters1,

 

Guess I should have said "freshwater". I'm a couple thousand miles from any salt water.

 

It never ceases to amaze me that anglers don't know that water, at its heaviest, is 39 degrees.

 

In fact, since water freezes at 32 the bottom is often the warmest place. I'm not sure at what temp freshwater is frozen no matter what. But I'm not looking it up either.

 

Equally, the amount of dissolved O2 in water at 40f is (or can be) double that of water 80f. (That's just a rule of thumb I use on the bank. Not even sure how accurate it is.) For carp, if the DO isn't 7ish I don't fish - not safe for them and probably to hot for me to be out.

 

Phone