This guide walks you through the full setup process and outlines how to get the strongest possible GPS signal before and after every dive—so your logs are always accurate. 

Calibration of rebreather electronics is one of the most critical processes when setting a rebreather to go diving. Always refer to the official rebreather manual provided by the manufacturer, as there are different processes depending on the specific rebreather, but here are some tips to help you get started.

There are several possible root causes for a peripheral unit (Petrel, Nerd, LED HUD) that turns on by itself or cannot be turned off. Following these tips will help isolate the source of the issue so you can get back in the water as quickly as possible.

Rebreathers are complex devices that rely on numerous components to function correctly. When you encounter a problem, it’s valuable to isolate the issue to a specific component before seeking service. The idea is to verify whether a certain issue occurs with different peripherals or different head electronics.

The DiveCAN five pin connectors and the analogue four pin connectors are durable and reliable so long as a few steps are taken to care for them. To ensure the longest life and most reliable operation of DiveCAN connectors, please observe the following 
maintenance advice.

The latest update shows how to identify Petrel 3 units that have been reworked or built after the rework to comply with the service update.

Avoid these three situations to prevent unnecessary damage to any dive computer's depth sensor: cleaning, rinsing, or drying with high pressure, thermal stress, and chemical insult.

To improve the sealing performance and O-ring life span, the battery compartment O-ring gland design has been changed from a crushed gland to a rad...

Shearwater has a strong commitment to quality. In the year following the launch of the Petrel 1 dive computer, we received reports of divers who we...