Shearwater NERD


Innovative Hands-Free Dive Computer

The Shearwater NERD (Near Eye Remote Display) is the first technical dive computer with a display mounted on the diver’s rebreather mouthpiece. This revolutionary device keeps crucial information in your line-of-sight for the entire dive. Thanks to the Micro LCD display and magnifying lens, the data appears as if displayed on a 32” TV screen 12’ away, with no need to focus. The display is unobtrusive as it virtually disappears when you look straight ahead. The numbers are there when you need them and out of the way when you don’t.

SKU: Shearwater NERD Fischer Categories: , Product ID: 2507




Multiple Diving Modes


OC Recreational Mode Screen

OC Recreational

Three gas nitrox computer with features for the serious recreational diving enthusiast. Includes adaptive safety stop and NDL bar graph

OC Technical Mode

OC Technical

5 OC gases Trimix enabled by default

CC Mode


5 OC/5 CC gases
Trimix enabled
Constant PO2 for closed circuit

tech dive computer

External Monitoring

Real time PPO2 monitoring of 1 – 3 O2 sensors
This includes semi-closed rebreathers

nerd digital compass on technical dive computer

Digital Compass

Optional 3 axis, tilt compensated, digital compass
Available in all modes

nerd technical dive computer Gauge Mode


Depth, time, resettable stop watch function
Full dive logging

Simple and Powerful


nerd technical dive computer side view

Hands Free Dive Computer

All of the information you need at a glance

nerd technical dive computer easy adjustment

Two Button Interface

Easy to navigate, state aware menu structure

nerd technical dive computer user changeable battery

User Replaceable AA Battery

The NERD works with any type of standard AA battery

nerd technical dive computer front view

Digital Compass

Optional 3 Axis, tilt compensated, digital compass.
Available in all modes.

nerd bluetooth dive computer

Bluetooth Integration

Classic Bluetooth integrates with Mac or PC

Desktop Control


Analyze your dive log, deco profile, temperature and more.

Download and display dive logs quickly using Bluetooth technology.

You can display as much or as little information as you need.

Technical Specs

OC Rec 3 gas nitrox recreational computer
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
Decompression Computer
Open Circuit
Trimix / Nitrox / Air Compatible
Bühlmann Gradient Factors
Closed Circuit Fixed PPO2
Closed Circuit External PPO2
Semi-Closed Circuit External PPO2
Gauge Mode
Digital Compass: 3 axis, tilt compensated
Classic Bluetooth Enabled
Upgradeable Firmware
Screen Resolution 320×240 QVGA
Display Type Micro LCD
Battery Type Single AA (any type)
Battery Life
AA Alkaline 30 Hours
SAFT LS14500 95 Hours
Number of Gases 5 OC / 5 CC
Dive Log 1,000 Hours
Eyepiece (WxH) 32 x 76 mm (Ø 1.25″ x 3″)
Battery Box (WxHxD) 76 x 52 32 mm (3″ x 2.25″ x 1.25″)
Fischer Connector (HxØ) 18 x 13mm (0.7″ x 0.5″)
Package (WxHxD) 273 x 114 x 60 mm (10.75″ x 4.5″ x 2.375″)
NERD 355g (0.78 lbs)