Want to use your echo™ series fishfinder in more than one vessel? A second transducer can make the process a lot easier. It comes with all of the hardware you need to mount on your transom or trolling motor.
Please Note: echo 100 is a single-beam fishfinder. When using this transducer with echo 100, it will only transmit and receive at the 200 kHz frequency.
Check out this Humminbird 2D Sonar Single And Dual Beam Transponder