STPRO 4003/4004 GPS
MATN’S Stabilizers has developed the GPS4004 device which supplies a speed signal to the STPRO4003 or STPRO 4004 control unit.

With that speed signal the control unit can reduce the angle of the fins at higher speeds. The device uses a GPS signal input. At very low speeds, such as in a harbor the fins can be automatically adjusted to the central position. Versions using NMEA0183 and NMEA2000 inputs are also available.