HUMMINBIRD US3 UNIT SWITCH PART

The Humminbird US3 Unit Switch (Part 720070-1) allows you to seamlessly switch between two control heads using a single transducer, offering full RF noise protection, complete waterproofing, and a rocker-style panel-mount switch for easy installation. Designed exclusively for Humminbird transducers, this accessory is compatible with multiple Humminbird series including Matrix, 100, 300, 500, 700, 900, 1100, Piranha, PiranhaMAX, and Wide Series models (see packaging or Humminbird’s website for exact model compatibility), making it an ideal solution for anglers using multiple displays who want clean, reliable sonar switching.