SKIPPER SD21 SPEED OVER GROUND (SOG) SPEED LOG WITH BUILT IN STW SENSOR
- Speed over ground (SOG) in three axis (Docking mode)
- Speed through water (STW) in one axis
- Colour 9" touch screen with day/night screens and Compact dot LED display
- NMEA 0183 output
- GPS, GLONASS (SOG) and Doppler speed (STW)
The SKIPPER combined speed log SD21 is a three axis speed log and a one axis speed log providing both SOG and STW. It is providing longitudinal and fore/aft transversal ship speed over ground (SOG) in additional to longitudinal speed through water (STW). The SKIPPER combined speed log SD21 provides accurate navigation parameters measured as they happen, and presented in a logical, user friendly way.