Comnav R120561 Rudder Follower (Rudder response unit)
Unit is fully functional, was hooked up to a Comnav 1001 or 2001 system. I have almost a complete Comnav system listed minus head unit.
R120561 comes with about 15 foot of wire, which maybe require splicing in a longer run of wire, it’s just 3 strand 18 guage or smaller
Compatible with other NMEA 0183 systems which means almost all autopilots ever made - raymarine, furuno, garmin, etc. Some systems are only made NMEA 2000 compatible, in which case you need a 0183 to/from 2000 conversion unit. Comnav does tend to be on the pricey side due to being commercial use autopilots - durability surpasses all other brands, and I think Comnav is the only business still selling the same exact head unit they sold 25-30, 30+? Years ago.