Ocean Technology MK2-DCI Air Intercom 900275-000 031632


Mfg Part #: 900275-000
  • Free Hard Carrying Case included
  • Self contained one or two diver intercom
  • Allows up to 6 divers to communicate
  • Adjustable volume control
  • Controllable cross-talk
  • Battery level indicator
  • Uses (2) 6 volt lantern batteries (not included)
  • Optional batteries and charger available (see below to order)
  • Clean crisp communication over long lengths of cable
  • Remote speaker jack
  • Surface mounted speaker
  • Frequency response: 600 to 12,000 Hz
  • Optional deluxe headset with boom microphone (see below to order)
  • Record out jack
  • BATTERY LIFE: Over 20 hours continuous use
  • DIMENSIONS: 10.60" x 14.00" x 6.85"
  • WEIGHT: 12.5 lbs
  • POWER: 20 watts


Customer Reviews for Ocean Technology MK2-DCI Air Intercom:

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Average Customer Review: based on 1 reviews.

Rating: communication
Reviewer: Pim De Rhoodes
Very nice professional service for a great product.

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Questions and Answers for Ocean Technology MK2-DCI Air Intercom:

  • Deputy:

    Thank you for your prompt reply Bill! Im not sure I understand the 2 wire 4 wire comm setup? Also Im not sure if you answered the wireless comm setup I also have. We are using Aga full face masks with the OTS earphones and mic system rigged both wired AND using the OTS 2010 wireless system as needed! My question is, does the MK2-DCI comm box work with the OTS 2010 wireless system? Thanks again for your prompt reply and Im sorry for the comfusion. Dep. Doug Gay Benton Co Dive Team

    Bill  (Certified Scuba Instructor at

    I do not think this surface unit will work with both wireless and hard wired units. You might want to contact OTS directly for clarification as to the best way to go for your current equipment. Ocean Technology Systems (714) 754-7848

  • Deputy:

    I am interested in this comm box for our team. What I would like to know is if it can be used either wired and/or wireless? Thank you in advance for your prompt reply to this matter. Dep. Doug Gay Benton Co Sheriffs Office Bentonville, Ark

    Bill  (Certified Scuba Instructor at

    It will provide one or two divers, using a Full-Face Mask and Ear/Microphone Assembly, with clear communications either in the 2- or 4-wire mode. However, up to 6 divers can be stacked and all be on line together (4-wire mode). Because Four Wire Mode allows the diver to be monitored throughout the entire dive without cutting him off when top-side speaks, this is the system OTS recommends. If the diver starts to stress, the tender can hear the breathing rate. If the diver starts to panic, the tender can easily talk the diver through what needs to be done. With two-wire mode cutting the diver off during every PTT exchange there is limit to communication.

Aquacom® MK2-DCI 2 Diver Air Intercom

The Aquacom® MK2-DCI is a compact, self-contained two- or one-diver air intercom. It will provide one or two divers, using a Full-Face Mask and Ear/Microphone Assembly, with clear communications either in the 2- or 4-wire mode. However, up to 6 divers can be stacked and all be on line together (4-wire mode).

The 20 watts of power ensures clean, crisp communications over long lengths of communications rope. State-of-the-art circuitry allows intelligibility that is second to none. Our unique battery protection microprocessor will protect your batteries from being damaged due to extreme low voltage conditions.


THB-2A Deluxe Headset w/boom Microphone & PTT control
RB-6V Sealed Lead Acid Battery (requires 2)
RCS-13 Smart Battery Charger
CR4 4-Wire Communications Rope
Specification Comparison of Hardwire Surface Units

Features MK2-DCI

Battery Life 20 hours continuous use

Frequency Reponse 600-12,000 Hz

Output Power (watts) 20

Charging Time 14 hours with optional gel-cell batteries

Controls - Volume: Tender, Diver 1 & 2, Speaker, Cross Talk, PTT, Speaker On/Off, Select diver 1,2 or both

Speakers - Heavy duty front panel or optional headset with boom microphone

Low Battery Indicator - LED type battery meter

Battery Type (2) 6 volt lantern batteries (heavy duty) or Optional (2) RB-6V rechargeable batteries

Dimensions (W x H x D) 14' x 10.60' x 6.85' 

Weight - 14 lbs

View all Ocean Technology Communication

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