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OCEAN REEF M105 Digital Dual Channel Transceiver Surface Unit with Battery Tester

SKU: ORI-OR033128 Rate this product


Availability: Usually ships 1 weeks after receipt of order

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  • Surface to diver communication system
  • Dual channel
  • 6V DC lead battery allows up to 48 hours operation
  • 33 foot cable length
  • Headphone connection
  • Volume control
  • Speaker
  • ABS anti-shock case
  • Water resistant case with pressure compensation valve


  • Type: Wireless Ultrasonic
  • Activation: Upon Connection/Switch
  • Transmission: PTT
  • Receiving: Automatic
  • Speaker Volume Adjustment: Yes
  • System Type: H-SSB
  • Frequency: 32.768 KHz
  • Working Range: 200 m (600 ft)
  • Rated Depth: Surface Unit
  • Powered By: Rechargeable 6V Lead
  • Autonomy (total): 48 h
  • Low Battery Autonomy (after alarm starts): 1.5 h
  • Low Battery Alarm: 1 beep/30 sec under 4.8 V
  • DAT: No
  • Transmit/Receive Cycle: No
  • Squelch: Automatic
  • Color: Black/Red
  • Length: 10 in.
  • Height: 11 in.
  • Width: 8 in.
  • Weight: 8 lbs.

M105 Digital Dual Channel Transceiver Surface Unit - P/N: ORI-OR033128 Includes:

  • Push-To-Talk (PTT) Microphone - P/N: 8595
  • Microphone Support Clip - P/N: OR034640
  • Rechargeable Battery 6V - P/N: 21038
  • Battery Charger 110-220 / 6V - P/N: OR008615
  • LED Battery Tester
  • Transducer Cable 33 ft (10 m) - P/N: 8608
  • Transducer Cable Bag
  • User Manual

OCEAN REEF's M105 Digital Dual Channel Transceiver Surface Unit with Battery Tester is a surface to diver communication unit which allows surface personnel to talk with divers in the water and vice versa. The unit uses a 6V DC lead battery, allowing up to 48 hours of operation, or may be hardwired to a 12V DC source.

The system is activated only when the transducer is connected, preventing unwanted loss of battery power. To start communication, the transducer must be lowered into the water. The standard cable length for the transducer is 33 ft (10 m). Transmission is activated by pressing the microphone button, which will emit a short beep letting divers know transmission is about to begin. It will return to receive mode when the button is released.


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  • What would be weight of the Ocean Reef M105 Digital Dual Channel Transceiver Surface Unit
    The shipping weight and dimensions are 7.75 lbs and 16 inch x 12 inch x 6 inch
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