two fish finders one transducer LUCKY Portable Finder Sonar Sensor 147 Feet Water Depth Finder LCD Screen Echo Sounder Fishfinder with Fish Attractive Lamp for Ice Fishing Sea Fishing : Electronics Team Seahawk Xeon | Model:Spinning 6'6" Medium Light - Xtra Fast MemberPricing It uses sonar technology

two fish finders one transducer LUCKY Portable Finder Sonar Sensor 147 Feet Water Depth Finder LCD Screen Echo Sounder Fishfinder with Fish Attractive Lamp for Ice Fishing Sea Fishing : Electronics Team Seahawk Xeon | Model:Spinning 6'6" Medium Light - Xtra Fast MemberPricing It uses sonar technology

Team Seahawk Xeon | Tournament Baitcasting Reel

Hi and low-vis colors available - Hi-Vis Flame Green, Ultra-low-vis Smoke

MemberPricing

Model:Spinning 6'6" Medium Light - Xtra Fast

Again, there’s much more to making the right decision beyond the size of the screen but the single biggest mistake I see anglers mistake is having a basic understanding of the types of sonar and what they need or want for catfishing but they end choosing a screen size that’s way too small and they can’t make use of the features they paid for

It uses sonar technology to locate fish or school of fish on any particular area or other solid objects beneath the waters surface and when sonar wave hits a solid mass it will echo back to the transducer