Dive Computers

Shearwater Introduces the Perdix 2 Journeys Edition

Following the successful 2022 launch of the Teric Journeys Edition, Shearwater Research is excited to announce the next chapter in its Journeys series with the debut of the Perdix 2 Journeys Edition.

Drawing inspiration from the history of diving helmets and tools — this new edition features a bold bronze-coloured titanium bezel, combining rugged reliability with Shearwater’s fully-featured flagship Perdix 2 dive computer.

Introducing the Shearwater Jetpack for Avelo Diving

Richmond, British Columbia – May 31, 2025 – Shearwater Research Inc., a global leader in dive computer technology, has announced its expansion into the development and manufacturing of specialized dive equipment. The company unveiled the Shearwater Jetpack for Avelo diving last night at an industry event in Long Beach, California.

Shearwater Tern (left) and Tern TX

Shearwater Issues Important Notice for All Tern and Tern TX Users


The issue is that if using Air mode and the Nitrox mode gas has been programmed to something other than air (21%), then that programmed gas is used while diving. This could result in a less conservative dive plan than is appropriate.

Prevention: If using firmware v34, do not use single gas Air Mode. Instead, use the single gas Nitrox Mode with 21% gas programmed.

Updated firmware for Tern and Tern TX will be released Monday April 14, 2025. Please check our website for the newest version.

When you buy the Tern TX, you get two wristbands, a wireless charger and a good box to store it in.

Shearwater Tern TX Review

It has five different modes/dive methods plus an everyday clock:

• Air: For regular sport diving with air.
• Nitrox: For regular sport diving with a nitrox mix.
• 3 Gas Nitrox: Decompression diving with three different gas mixes of air and nitrox.
• Gauge: A bottom timer that only records time and depth.
• Freediving: For snorkelling and freediving.

The computer is approved for depths up to 120m, which should be sufficient.