M-105 D Mariner is a surface to diver communication unit that may be installed on board a boat. It has the same operations and technical characteristics of the M-105; however, the M-105 Mariner uses a 12 v power source. The cable and transducer may be made to different lengths to accommodate fixed installations.   It not only connects to a main power supply, but also to an internal loudspeaker system. The M-105 D Mariner kit includes:

• M-105 Digital electronics, assembled on an anodized aluminum panel (can be arranged horizontally or vertically)
• 10 m cable and transducer
• PTT (push to talk) microphone
• Marine loudspeaker