The SAJ-DMS system is an awesome and innovative dynamic remote measuring system that offers proven accuracy down on the centimeter always complies with the hull marks. Uses only One through-hull intake and transducer for the draft in nine positions perpendicular and marks. The draft transducer combining a dynamic sensor measuring trim, list, and for larger vessels <100 m also hull deflection and torsion. Easy to retrofit, calibrate and maintain. A proven system that works 24/7 the SAJ guys knows measurement.