OTS MK-III 3 Diver Intercom

Ordering Code: OTS MK-III/3

The MK-III offers unprecedented performance at an affordable price! Designed for Commercial, Military and Professional divers, the MK-III has the ability to communicate with 3 divers simultaneously in loud, hard working conditions due to it’s powerful speaker. The panel displays a 3-diver colour coded section to allow a surface tender to quickly identify and adjust volumes on the fly. The connector panels have the ability to be switched as needed, quickly and easily.

Request a Quote

SKU OTS MK-III/3 Category


Modular Connector Panel

A modular connector panel makes swapping topside connectors for different CommRope connectors a breeze. Options include: MS, AMP, and Banana Connectors

Connect Two Boxes Together

The ability to connect two boxes together gives even greater versatility to the MK-III 3 Diver Box by allowing up to 6 divers to talk simultaneously with a surface tender.

Powerful Speaker

The MK-III 3 Diver Box delivers incredible sound delivered by a powerful panel speaker, perfect for noisy environments where extreme volume is needed.

Aux. Input for Music and Pre-Recorded Messages

A panel mounted AUX input makes playing music or pre-recorded messages easy with a simple RCA connector.

Accessory Compartment Lid

The easy to remove lid of the MK-III doubles as an accessory storage compartment for headsets, extra batteries and other accessories.


Input Voltage : 12VDC (Minimum 3 amps) or 90-240 VAC, 50-60 Hz
Idle Current: 300 mA
Audio Frequency: 300-4000 Hz
Battery Type: Non-spillable Lead Acid, 12v, 7.2Ah
Battery Life: 20 hours idle, 12 hours Working
Operating Temperature: -40°C to 50°C (-40°F to 122°F)
Storage Temperature: -40°C to 40°C (-40°F to 104°F)
Housing Dimensions: (HxWxD) 10¾” x 16¾” x 8¾”
Weight: 19.5 lbs (8.84 kg)
Case: Molded ABS Designed to meet IP65
Included with the MK-III ·   RCS-2-US Battery Charger

·   RB-12 re-chargeable battery

Contact Information



iSubC Diving Equipment Ltd
Units 10 Holly Close
Whitehills Business Park
Westby With Plumptons

Privacy Preference Center