Ocean Reef M100 Portable Transceiver Surface Unit

Name: Ocean Reef M100 Portable Transceiver Surface Unit
Brand: Ocean Reef IDM
SKU: 33165
Price: 699.95 USD
Availability: OutOfStock

Ocean Reef IDM | SKU: 33165

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Product Information

The Ocean Reef M100 G.Divers Portable Surface Unit is a belt-worn transceiver that lets a surface operator talk to a diver through a 10 meter (33 ft) transducer cable, a single communication channel and a stated range of approximately 200 meters (600 feet). About the size of a cellphone, it clips onto the operator's belt for topside dive support, guide, or training operations.

Who it is for

The M100 is built for dive operators, instructors, and surface tenders who need direct voice contact with a diver below without being tied to a boat console. Its compact, belt-mounted form factor and 10 meter transducer cable let the operator move around the dive site while lowering the transducer to the depth needed for signal.

Key details

Single channel (1 channel) operation
9V replaceable alkaline battery with approximately 9 hours of autonomy
Communication range of approximately 200 meters (600 feet)
Transducer cable length of 10 meters (33 feet)
PTT (push to talk) button paired with a headphone/microphone connector
Automatically powers on when the headphone/microphone is connected and powers off when it is removed

What's in the box

10 meter (33 ft) transducer cable
Headphone/microphone
Screwdriver

DiveCatalog.com is an authorized Ocean Reef dealer and a dive shop in Irvine, California, open since 2003. Call 888-701-4017 or start a chat if you have questions about fit, compatibility, or setup for your dive operation.

⚠️ 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

What battery does the Ocean Reef M100 surface unit use?

The M100 runs on a single, replaceable 9V alkaline battery. According to the manufacturer's specifications, a fresh 9V battery provides approximately 9 hours of operating autonomy, so operators running longer dive days should carry spare batteries.

How far can the M100 communicate with a diver?

The M100 has a stated communication range of approximately 200 meters (600 feet) between the surface unit and the diver, operating on a single channel. Actual range can vary with water conditions and how the 10 meter transducer cable is positioned.

Does the M100 work with Ocean Reef's underwater receiving units?

The M100 is a surface transceiver for talking to divers. Contact DiveCatalog.com at 888-701-4017 to confirm the underwater unit pairing for your setup.

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Excellent wetsuit but will it crush quickly like other wetsuits?

I purchased a BARE 5mm Reactive wetsuit (open box), which was like new, to replace my 1.5 yr old BARE 5mm Velocity wetsuit which had collapsed to only 2.5mm after 3 diving trips (~100 dives). The Reactive wetsuit is well constructed and very flexible. I had to increase the size of the Reactive suit, as it was smaller than the BARE Velocity suit of the same size. Tremendous customer service by Dive Catalog to exchange the wetsuit for proper size. I hope the Reactive suit does not crush so quickly like my other wetsuits (BARE, Henderson, Pinnacle). Hoping that the new technology in this suit will keep me warm below the thermocline.

Perfectly Built

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Will continue to use this hanger for the long-term. No brainer.

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Solid Hanger w/ Tons of Options

Does it's job and then some. The added accessory arms gives you options for a multitude of storage solutions. Solid build, solid pricing, must have for owns of dive gear.

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Used tons of dive hangers, but never an upside down hanger. Game-changer for me. Will now add more of these in the near-future.

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Product	M100 G.Divers Portable Surface Unit (Transceiver)
Channel	1 channel (single channel operation)
Battery	9V replaceable alkaline battery
Battery life	Approximately 9 hours of autonomy
Range	Approximately 200 meters (600 feet)
Transducer cable length	10 meters (33 feet)
SKU	33165