The SI-TEX SP-120C autopilot handles hydraulic, mechanical, and solenoid steering systems without requiring a separate junction box — all connections route directly to the back of the control head. Built for vessels under 38 feet, it pairs a 9-axis rate gyro compass with GPS SOG/COG input to deliver accurate, responsive course-keeping. The compact, splash-proof control head features a color LCD that simultaneously displays compass heading, selected heading, and rudder angle. NMEA-0183 input accepts chart plotter waypoints and routes, while the 10 kHz compass heading output feeds MFDs for chart and radar overlay. Four steering modes — Manual (Power Steer), Auto, GPS, and Wind — cover everything from power vessels to sailboat wind-vane installations. Covered by a 2-year SI-TEX warranty.

Specifications:

• Waterproof rating: IPX6
• Control head dimensions: 110 mm L x 110 mm W (4.1" x 4.1")
• Voltage supply: 12/24V DC
• Display: Color LCD showing compass heading, selected heading, and rudder angle simultaneously
• Standby current consumption: 0.5 A at 12V DC
• Maximum drive output current: 15 A
• Operating temperature: -10°C to +55°C
• Data connections: NMEA-0183 GPS input; NMEA-0183 10 kHz compass heading output
• Course detection accuracy: <1 degree
• Compatible steering types: Hydraulic, mechanical, and solenoid control
• Rudder feedback: Virtual Rudder Feedback (VRF) mode for outboards; separate RFB unit supported for inboards
• Steering modes: Manual (Power Steer), Auto, GPS (waypoint/route steering), Wind (sailboat wind-sensor interface)
• Warranty: 2 years

In the Box:

• SI-TEX SP-120C color LCD autopilot control head
• NMEA interface cables
• 9-axis electronic rate gyro compass
• Control head sun cover
• Product manual
• Mounting screws