Out of stock
SKU: CW48587
MPN: 20320004
The ComNav Marine Fluxgate Compass (MPN 20320004) is the magnetic heading sensor that feeds steering data to ComNav 1000 and 5001 autopilots. It reads the earth's magnetic field electronically rather than relying on a liquid-damped card, which gives autopilots a fast, stable heading signal to hold course in offshore and coastal water. After compensation, it delivers heading accuracy of +/- 1.0 degrees, tight enough to keep a vessel tracking straight without constant rudder correction. Boaters running a ComNav pilot who need to replace a failed sensor or complete a new install will find this is the matched compass for those systems. Browse our full lineup of marine autopilots to pair it correctly.
Inside the watertight high-impact case, a microprocessor processes fluxgate magnetic field data and outputs DC sine and cosine signals the autopilot reads as heading. A heeling adjust control compensates for the vessel's vertical magnetic field, which matters on boats that lean under sail or in a beam sea where a static compass would feed bad data. The sensor is rated to operate from -15°C to +85°C, covering everything from cold-weather starts to a hot engine compartment install. Power comes directly from the connected ComNav autopilot, so there's no separate supply to wire. The unit ships with a 40-foot cable and mounting brackets, giving you room to locate it away from magnetic interference such as speakers, engines, and steel structure. Listed compatibility covers ComNav 1000 and 5001 pilots, with several sources also citing 1001, 1101, 1201, and 2001 models.
Mount this compass low and amidships, away from ferrous metal and electronics, and the autopilot gets the clean heading reference it needs to steer accurately on long passages and in following seas. It's a direct fit for anyone servicing an existing ComNav installation or building one from the helm out. The watertight case and wide temperature rating suit it to both open cockpits and enclosed engine spaces. When you're sorting out the rest of the helm, our marine compasses and broader navigation instruments cover the displays, sensors, and cabling that round out a steering system.
It is the matched heading sensor for ComNav 1000 and 5001 autopilots. Several distributors also list compatibility with ComNav 1001, 1101, 1201, and 2001 models. Compatibility details vary slightly between sources, so confirm your exact autopilot model before ordering to be sure the sensor matches your system.
After compensation, the sensor provides heading accuracy of +/- 1.0 degrees. That precision comes from microprocessor-controlled fluxgate sensing, which reads the earth's magnetic field electronically and outputs DC sine and cosine signals the autopilot interprets as heading for steady course holding.
No. Power is supplied directly through the connected ComNav autopilot, so there is no separate power source to wire in. The unit ships with a 40-foot cable and mounting brackets, giving you flexibility to place it away from magnetic interference.
Mount it low and near the centerline, away from ferrous metal, engines, speakers, and other electronics that create magnetic interference. The included 40-foot cable allows you to position the sensor in a clean magnetic environment while still reaching the autopilot. The heeling adjust control helps compensate for the vessel's vertical magnetic field.
A fluxgate compass senses the earth's magnetic field electronically rather than with a liquid-damped card. This gives a fast, stable heading signal with less lag than older designs, which is what an autopilot needs to make smooth, timely steering corrections and hold a straight course.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
ComNav Marine
ComNav Marine
ComNav Marine
ComNav Marine