Shearwater NERD 2 – Advanced Near-Eye Display for Technical and Rebreather Divers
The Shearwater NERD 2 is the ultimate solution for divers who need vital dive data directly in their line of sight. Originally built for rebreather diving, the redesigned NERD 2 now supports open circuit configurations with a universal regulator mount. Its advanced near-eye optics and high-resolution QVGA display project critical dive info as if you're viewing a 25-inch screen from 12 feet away—giving you uninterrupted situational awareness and reducing task loading in even the most complex dive scenarios.
Key Features and Benefits
-
Near-Eye Heads-Up Display: Micro LCD paired with a precision lens system creates a crisp, full-color HUD visible at a natural eye angle.
-
Modular Mounting Options: Supports rebreather loop mounting (Fischer or DiveCAN) and open circuit regulator hose mount via included clamp kits.
-
Extended Battery Life: Rechargeable lithium-ion battery delivers up to 18 hours of operation per charge. Battery is designed to last 5 years or 500 charge cycles.
-
Dive Mode Versatility: Built for both recreational and advanced technical divers with 6 comprehensive modes, including CCR support.
-
Air Integration Option: The SA version supports up to 2 wireless transmitters for monitoring tank pressure.
-
Rebreather Connectivity: The Fischer variant enables real-time monitoring of 1 to 3 oxygen sensors via 7-pin Fischer 103 connector.
-
Compact and Rugged: Constructed from hard-anodized aluminum, pressure-rated to 300 meters (985 feet).
-
Bluetooth Connectivity: Seamless dive log transfers and firmware updates via Shearwater Cloud.
Detailed Description
The NERD 2 Remote Display is designed for divers who want to monitor their data without ever taking their eyes off the dive. Mounted just centimeters from the eye, the unit eliminates the need for wrist glances while still delivering real-time data on gas, depth, time, decompression status, and more. It’s ideal for rebreather divers managing PPO2 and open circuit divers who want streamlined information delivery.
Dive modes include:
-
OC Rec: 3-gas nitrox recreational computer
-
OC Tec: Trimix-capable multi-gas decompression
-
CC INT: Closed circuit fixed PPO2
-
CC EXT: Real-time PPO2 from 1-3 O₂ sensors (Fischer only)
-
SCR EXT: Semi-closed PPO2 monitoring (Fischer only)
-
Gauge: Bottom timer with stopwatch and logging
Whether you’re on a JJ-CCR, O2ptima, or sidemount, the Shearwater NERD 2 adapts to your system with mounting kits for DiveCAN, Fischer, or standalone models. It includes a magnetic USB charging dock, hard case, and firmware upgrades for long-term support.
Specifications
| Feature | NERD 2 SA | NERD 2 Fischer |
|---|---|---|
| Screen Resolution | 320x240 | 320x240 |
| Display Type | QVGA | QVGA |
| Battery | Rechargeable Li-Ion | Rechargeable Li-Ion |
| Battery Life | 18 hrs (medium brightness) | 18 hrs (medium brightness) |
| Battery Lifespan | ~5 years / 500 charge cycles | ~5 years / 500 charge cycles |
| Number of Gases | 5 OC / 5 CC | 5 OC / 5 CC |
| Rebreather Connectivity | n/a | Fischer 103, 7-pin |
| Dive Log Memory | 1000 hours | 1000 hours |
| Depth Rating | 300m (985ft) | 300m (985ft) |
| Computer Dimensions | 33 x 85.81 x 44 mm | 33 x 85.81 x 44 mm |
| Computer Weight | 74g | 148g |
| Ballistic Case Dimensions | 240 x 240 x 60 mm | 240 x 240 x 60 mm |
| Ballistic Case Weight | 313g | 313g |
For divers who demand cutting-edge technology and intuitive real-time data, the Shearwater NERD 2 offers a new level of awareness. Whether you're exploring wrecks on a CCR or running gas switches on open circuit, this display puts everything you need—right where you can see it. Choose your preferred model and take your dive planning, precision, and safety to the next level.
