Used Si-tex G1 vector gps compass.
I bought this for our refit, but instead installed a Vector compact compass.
As you can see in the photo, the cable connector does have a crack and you'll need a new cable from Si-tex or Hemisphere (about $120).
I was not able to test it since I never bought the cable for this unit, but they're just two gps sensors and pretty much indestructible.
New, the price is around $1900
I'll sell this for $450
Here are the specs:
Accurate Heading, Position, and Rate of Turn
Small compact all-in-one maintenance free unitFully compatible with NMEA 2000 or 0183 equipment: Autopilots, Radar, AIS, Plotters, etc.Accurate 2D heading and positioning dataBetter than 0.60 degree Heading accuracy90 Rate of Turn tracking (ROT)Provides Heave, Pitch and Roll informationDGPS provides sub-meter positioning accuracyDifferential Correction source SBAS (WAAS, EGNOSand MSAS) and RTCM SC-104 data (External Source)COASTTM technology maintains differentially-corrected position for 40 minutes or more with loss of differential signalIntegrated Gyro & Tilt sensors provide fast start up times and Heading updates during temporary loss of GPS20 Hz position and Heading update rates (10Hz standard)Multiple BAUD rate selectionsCE certified for EMI and RFI immunityPre-programmed default settings for Heading, Rate of Turn, Course over Ground, Lat/Long Geographic position, Time & Date
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