Always be prepared for technical problems go ice fishing with a replacement Dual-Beam Ice Ducer from MarCum. Powerful, dual-beam 8 or 20 ice transducers fit MarCums sonar models LX-5, LX51, LX-6, LX-6s, LX-7 and LX-9. Includes an 8-ft. cable. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Transducers.