AMEC MANDO-301/-303 is an AIS AtoN (Aids to Navigation) equipment that provides accurate and real time information to nearby vessels and shore stations. MANDO-301 is a type 1, and MANDO-303 is a type 3 model.

The MANDO series prevents collisions by transmitting position of a fix or a floating AtoN. It has the ability to transmit meteorological and hydrological data with proper additional sensors installed.

MANDO is designed with state-of-the-art technologies to offer users many possibilities with ease of integration. As a first in the class, MANDO-303 supports chaining functions which has been successfully approved by BSH. To extend transmission range, the feature has the ability to chain several units to cover a wider area and it definitely brings flexibilities in implementations.