PFF, i have a (~$400) water meter (does stuff other than temp) with probe attached by 10 foot cable to meter.....just drop it down and let readings equilibrate on meter. there are cheaper meters you can get with long cables if all yer after is temp. google the following companies which have both single and multiple parameter meters........hanna, YSI, Horiba, LaMotte, Oakton. There are probably others.....in recent years i've found hanna to be best bang for buck.
edited post.....and as usual, fellow pondmeisters have their own creative and less expensive ways of accomplishing things.....but i aint that smart......thanks ML
