Darrell Lowrance, founder of Lowrance Electronics and creator of the first recreational fishfinder electronics, died last week of a stroke.

Lowrance was 80.

Lowrance’s first fishfinder, the Fish-Lo-K-Tor and often referred to as the “Little Green Box,” paved the way to today’s sophisticated electronics. Lowrance also was responsible for numerous other innovations in fish finding and navigational aids for anglers.

Lowrance Electronics is located in Tulsa, Ok. and presently owned by Navico.