Ocean Reef M-105 Digital Dual Channel Transceiver Surface Unit OR033128-220v 029486

Mfg Part #: OR033128

Ocean Reef M-105 Digital Dual Channel Transceiver Surface Unit


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w/ battery tester

product code: OR033126 - see below
product code: OR033128 - see below

The new M105 surface units are equipped with an incorporated and easy to read LED battery tester which shows the power status of the battery.

Characteristics of M105 DIGITAL

The M105 Digital 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 10m (33 ft). 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.

The M105 DIGITAL comes standard with the following items:

650ft / 200m range
Headphone connection
Volume control
Water resistant case w/ pressure compensation valve
Battery charger
Connector and cable for external 12v DC source
Transducer cable bag
Available accessories:
Audio out cable
Characteristics of M105 DIGITAL DC

This unit has the same characteristics as the M105 Digital, but with the addition of a second channel. The operator may easily switch from channel 1 to channel 2. When switching between channels, a recorded message informs the operator of which channel has been activated.


M105 DIGITAL 220v (code OR033126)
M105 DIGITAL 110v (code OR033127)
M105 DIGITAL DC Dual Channel 220v (code OR033128)
M105 DIGITAL DC Dual Channel 110v (code OR033129)

Code - OR033128 (220v)

Type - Wireless ultrasonic

Activation - Upon connection/switch

Transmission - PTT

Receiving - Automatic

Speaker volume adjustment - Yes

System type - H-SSB

Frequency - 32.768 Hhz ch. 2 41.000kHz

Powered by - Rechargeable 6v lead

Autonomy - 48h

Low battery autonomy - 1.5 h 

DAT - No

Transmit-receive cycle - No

Squelch - Automatic

Weight with batteries - 2.3kg /5lbs

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