Contactless Ice thickness meter http://uwbs.ru/en/products/izmeritel-tolschiny-lda-picor-ice/ http://www.beckerarena.com/UserFiles/File/Library/Ice%20Tec%208%20Manual.pd= f and plenty more with google search On Wed, Nov 6, 2013 at 6:26 PM, Robert Rolf wrote= : > Ultrasound. Commercial thickness gauges for steel cover a few inches. > Don't know about ice. > Some experts can tell from sledge hammer thump on top. > > > On Wed, Nov 6, 2013 at 6:06 PM, BOB wrote: >> I have a friend who is a die hard ice fisherman. He was wondering if >> there is a way to measure the thickness of ice on a lake with out >> drilling a hole in it. >> >> Anyone know of some type of sensor that would do this? >> >> Bob >> -- >> http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive >> View/change your membership options at >> http://mailman.mit.edu/mailman/listinfo/piclist >> --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .