I'm looking to buy a boat that has a Lowrance Depth Finder up front and no unit at the console. The one unit is OK for now, but doesn't give the water temperature. Does anyone know of some kind of unit/device :-/ where I could drop a sensor in the water and get the water temperature. When the money is right I will be buying 2 new Fish Finders w/GPS and I want have this problem. Looking for a temporary solution. THANKS

I believe Hummingbird makes a portable Water temperature gauge for around $20 but I be danged if I can find it on-line.

All you need is a string, some weight, and a rectal thermometer.  A couple of bucks at the most.

Walmart usually sells a MinnKota water temp gauge for around $20.  

Walmart usually sells a MinnKota water temp gauge for around $20.

That's the one, I don't know why I was thinking hummingbird  :-?

I use the MinnKota temp guage. I has a 23' cord with probe for water temp, an air temp sensor and a clock. It is powered by a single AAA battery. I also have two spares. It is model #MKA-38

Thanks. I'll stop by Wal Mart.

Jig Man, It's obvious you live in the deep South.  Although I haven't seen a rectal thermometer in years, I doubt that it would read any temperature below, say 80.  Since the water temperature in my local lakes is hovering in the low forties,  I doubt that a rectal thermometer would be of much use to me.   ;D