The Shearwater NERD 2 is a near-eye remote display: a full dive computer in a heads-up format that mounts in the diver's line of sight. A micro LCD and a magnifying lens make the data appear, in Shearwater's words, like a 25 inch TV seen from 12 feet away. Designed and built in Canada.

This model is the NERD 2 Monitor with a DiveCAN connection, hardware and features for compatible rebreathers. It includes a universal mount that works on most rebreather loops. Shearwater notes that it does not provide technical support for wiring rebreathers. This listing (12503) is the generic DiveCAN monitor with standard hardware.

Dive modes

• Air
• Nitrox
• 3 Gas Nitrox
• OC Tec - Multi gas, trimix decompression computer
• CC INT - Closed circuit fixed PPO2
• CC EXT - Closed circuit real time monitoring of 1 or 3 O2 sensors
• SCR EXT - Semi-closed monitoring of PPO2 for 1-3 O2 sensors
• Gauge - Bottom timer with stop watch and dive logging

Main features

• Decompression computer
• Bühlmann Gradient Factors
• 3 axis, tilt compensated digital compass
• Bluetooth wireless technology
• Upgradeable Firmware
• Air Integration
• Number of Transmitters - Up to 4

Technical specifications

• Screen Resolution: 320x240
• Display Type: QVGA
• Battery Type: Internal Rechargeable Li-Ion Battery
• Battery Capacity (approx): 1.3 Wh
• Battery Life: 18 Hours (medium brightness)
• Battery Replacement: 5 years (or 500 charge cycles)
• Number of Gases: 5 OC / 5 CC
• Rebreather Connectivity: DiveCAN,5-pin
• Dive Log: 1,000 Hours
• Depth Rating: 300m / 985ft
• CCR Mount fits 55-61mm rebreather loop

Dive Computer Dimensions

• 33mm x 85.81mm x 44mm
• Weight: 74g

Ballistic Nylon Case

• 240mm x 240mm x 60mm
• Weight: 313g

What is in the box

• NERD 2 DiveCAN Monitor (5-Pin) Dive Computer
• Inspection Checklist Card
• Product Info Guide
• Screen Protector
• CCR Mount Kit
• Charging Clip
• Charging Cable

Try it at Scuba 2000

Scuba 2000 is a Shearwater Demo Centre. We keep the Shearwater range in our rental fleet, so you can see it, handle it and dive it before you buy. Visit our shop in Richmond Hill, Ontario, or ask our team which Shearwater suits the diving you do.

Options on this listing

This page is the Shearwater NERD 2 DiveCAN Monitor (5-Pin) in the Standard version (Shearwater part number 12503). Use the buttons to see the other versions.