Nerd 2

Shearwater NERD 2 Heads‑Up Dive Computer
See crucial dive data without looking away from the underwater world. The Shearwater NERD 2 features a near‑eye remote display with advanced optics and rechargeable battery, giving you depth, time, gas and decompression information right in your sightline. Designed and built in Canada, it supports air integration and multiple dive modes for recreational and technical diving alike.

Standard NERD 2
The universal model mounts to most open circuit regulators so you can keep essential dive information in view at a glance, making it ideal for OC divers who want heads‑up data without distraction.

NERD 2 Fischer
This variant adds a Fischer connector and CCR‑compatible mount for rebreather divers, combining the same near‑eye display with dedicated rebreather loop integration for real‑time monitoring.

NERD 2 Monitor (4‑Pin)
Tailored for analog 4‑pin rebreather systems, the Monitor version delivers continuous heads‑up dive information and PPO2 monitoring while retaining all core NERD 2 features in a rugged, reliable package. This model is a NERD 2 Monitor with DiveCan connection, hardware and features for compatible rebreathers. It includes a universal mount that works on most rebreather loops.

• 12503 is a generic DiveCan monitor with standard hardware.
• 12504 is a JJ DiveCan monitor for use with JJ Rebreathers.
• 12505 is an O2ptima DiveCan monitor for use with O2ptima style .