Works with all Lewmar windlasses equipped with a control box/solenoid. Three-button version works with a single windlass. Five-button version can operate a windlass and a bow thruster. Kits include required receivers for windlass or thruster. Remote kits are easily retrofitted to existing installations. Remote key fobs float and are waterproof to IP67. A proprietary encryption scheme prevents false triggering from any other device or similar fob. Optional 10m Remote Antenna Kit will improve reception when reception is poor or distance to the windlass/thruster is long. NOTE: Previous generation Pro Sport 550, Pro Series 700, Pro Fish 700 and V700 windlasses require Dual-Direction Control Box/Solenoid, Model 228861 and Guarded Rocker Switch, Model 4730677 for wireless remote installation.