OTS Portable Two Diver Air Intercom, 4-Wire Only

SKU: OTSMK7 MFR: 900104-000

About OTS Portable Two Diver Air Intercom, 4-Wire Only

The MK-7 BuddyLine is a compact, self-contained one or two-diver air intercom. It will allow clear communications in the 4-wire mode (round robin) and includes the THB-7A Deluxe Headset (with boom mic). The MK-7 BuddyLine was specifically designed for Search & Rescue Teams to have an underwater communication device that needs little set-up time. The 2 watts of power is managed by state-of-the-art circuitry allowing relatively long life and great intelligibility. MK-7 BuddyLine operates on 8 AA alkaline batteries. The MK-7 BuddyLine and OTS ComRope (see SKU: OTSCCROTS) is a great package that ensures a dive operation runs smoothly.

The run time for the batteries is 12 hours of continuous use, uses frequency response 600 to 10,000 Hz. The MK-7 Buddyline has a volume control to tender, diver 1 and diver 2. Unit has a low battery audio tone warning. The Mk-7 BuddyLine has an optional rechargeable battery pack OTS NiMH battery pack -12 volts (see SKU: OTSRB11). Battery pack requires optional OTS Battery charger for RB-11 battery pack (230V, 50/60 Hz), (see SKU: OTSRCS15). The com unit measures (H x W x D) 6.75" x 4.25" x 2.75" (17.15cm x 10.8cm x 7cm) has an injected molded, high impact resistant plastic housing. Portable Two diver Air Intercom comes with a user guide and is covered by a 12 month limited warranty.

Warranty Information

This product has a limited warranty of 12 months.

(800) 550-1984

OTS Portable Two Diver Air Intercom, 4-Wire Only Features

  • OTS Portable Two Diver Air Intercom, 4-Wire Only
  • MK-7 BuddyLine: Compact, Self-Contained 1 or 2-Diver Air Intercom
  • Allows Clear Communications in 4-Wire Mode (round robin)
  • Includes THB-7A Deluxe Headset (with Boom Mic)
  • Specifically Designed for Search & Rescue Teams
  • Requires Little Set-Up Time
  • 2 Watts of Power: Managed by State-of-the-Art Circuitry
  • Relatively Long Life and Great Intelligibility
  • ComRope: OTS ComRope (see SKU: OTSCCROTS, not included)
  • OTS ComRope: Ensures Dive Operation Runs Smoothly
  • Power: Operates on 8 AA Alkaline Batteries
  • Run Time: 12-Hours Continuous Use
  • Alternate Power Source:
    Rechargeable Battery Pack
    OTS NiMH Battery Pack
    12 Volts (see SKU: OTSRB11)
    Requires: OTS Battery Charger for RB-11 Battery Pack (230V, 50/60 Hz)
    See SKU: OTSRCS15 (Not Included)
  • Frequency Response: 600 to 10,000 Hz
  • Volume Control to Tender, Diver 1 and Diver 2
  • Low Battery Audio Tone Warning
  • Dimensions: (H x W x D) 6.75" x 4.25" x 2.75" (17.15cm x 10.8cm x 7cm)
  • Housing: Injected Molded, High impact Resistant Plastic
  • Weight: 16oz (453.6g) w/o Batteries
  • User Guide
  • 1 Year Limited Warranty

OTS Portable Two Diver Air Intercom, 4-Wire Only Specifications

Input Voltage
12 VDC
Input Current
600 mA peak
Idle Current
30 mA
Frequency Response
600 Hz to 10 kHz
Microphone Type
Power Output
2 Watts RMS
Battery Type
8-AA Alkaline Batteries or OTS NiMH Battery Pack -12 Volts (see SKU: OTSRB11)
Battery Life
12 Hours (normal use) Using 8-AA Alkaline Batteries
Injection-Molded, High-Impact Plastic
(H x W x D) 6.75" x 4.25" x 2.75" (17.15cm x 10.8cm x 7cm)
16oz (453.6g) w/o Batteries
Up to 1,200' (365.75 meters)
Weight [with packaging]
1.6 lb
Mfr #
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