I use remote read digital thermometer used by anglers or homeowners for daily temperature monitoring. Depending of brand and model the length of the wired probe varies homeowners - shorter home owner probes 3-10ft, anglers 50-100ft. My sophisticated, high dollar DO meter also has temperature sensor with 30ft probe.

DEPTH WATER TEMPERATURE GAUGE
This was a pretty good one with a 23 ft sensor.
http://www.ebay.com/itm/Minn-Kota-Fisherman-s-Temperature-Sensor/112310245195?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D2%26asc%3D41376%26meid%3Dc5ef4eb585fa47dcbf2d298732cce6a6%26pid%3D100005%26rk%3D3%26rkt%3D6%26sd%3D172555251219

https://www.amazon.com/FISH-HAWK-ELECTRONICS-AT-DEPTH-TEMPERATURE/dp/B004VXSSXS

https://www.google.com/#tbs=vw:l,mr:1,brand:vexilar&tbm=shop&q=depth+water+temperature+gauge&*&spd=5310166159358384396

Last edited by Bill Cody; 03/07/17 10:41 AM.
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