Ocean Reef M105 Digital Transceiver Surface Unit

Name: Ocean Reef M105 Digital Transceiver Surface Unit
Brand: Ocean Reef IDM
SKU: OR033126
Price: 1429.95 USD
Availability: OutOfStock

Ocean Reef IDM | SKU: OR033126

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Product Information

The Ocean Reef M105 Digital Transceiver is a surface-to-diver communication unit that lets a surface operator talk directly, PTT walkie-talkie style, with any number of divers wearing Ocean Reef wireless communication units. It runs on a 6V DC lead battery for up to 48 hours of operation, can also be powered from a 12V DC source, and ships with a 10m (approx. 33ft.) transducer cable.

Who it is for

This surface unit is built for dive operations, instructors, and safety teams who need a reliable topside link to divers wearing wireless comm gear, whether that is during training dives, guided tours, or commercial and public safety operations where a surface attendant must stay in contact with multiple divers at once.

Key details

Powered by a 6V DC lead battery, allowing up to 48 hours of operation.
Can alternatively run from a 12V DC power source.
Includes a 10m (approx. 33ft.) transducer cable, with other lengths available on request; longer cables may require amplifier mounting.
The unit activates only when the antenna/transducer cable is connected, preventing unwanted battery drain when idle.
Built-in speaker, headphone connection, and volume control for monitoring and private listening.
LED battery tester gives an easy, at-a-glance read of remaining power.
Water resistant case with a pressure compensation valve protects the electronics topside.

What's in the box

M105 Digital transceiver surface unit
Battery charger
10m transducer cable
Carrying bag
Microphone

DiveCatalog.com is an authorized Ocean Reef dealer and a dive shop in Irvine, California, serving divers since 2003. Call or chat with us at 888-701-4017 if you have questions about cable length, power options, or compatibility with your dive team's wireless comm units.

⚠️ WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.

Frequently Asked Questions

How long does the Ocean Reef M105 Digital transceiver battery last?

The M105 Digital runs on a 6V DC lead battery that provides up to 48 hours of operation on a charge. It can also be powered from a 12V DC source, which is useful for extended surface operations where recharging the internal battery mid-session is not practical.

What cable length comes with the M105 Digital surface unit?

It ships with a 10m (approximately 33ft.) transducer cable. Other lengths are available on request, though long cables may require amplifier mounting.

Does the M105 Digital surface unit turn on by itself?

No, the unit only powers on when the antenna or transducer cable is physically connected. This design prevents the battery from draining unintentionally when the transceiver is stored or not actively in use.

What accessories are included with the Ocean Reef M105 Digital Transceiver?

Each unit comes with a battery charger, a 10m transducer cable, a carrying bag, and a microphone.

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Brand	Ocean Reef
Product type	Surface-to-diver transceiver unit
SKU	OR033126
Barcode	764500000648
Battery	6V DC lead battery
Operation time	Up to 48 hours
Alternate power	12V DC source
Transducer cable length	10m (approx. 33ft.); other lengths available on request
Cable note	Long cables may require amplifier mounting
Power activation	Activates only when antenna/transducer is connected
Audio features	Headphone connection, volume control, built-in speaker
Battery status indicator	LED battery tester
Case	Water resistant with pressure compensation valve