Shearwater’s Tern TX dive computer is an outstanding sport diving computer designed for those who prefer a comfortable, lightweight, multipurpose round-faced watch format that can be worn underwater and on the surface.

When paired with the optional Swift Transmitter, the Tern TX provides a world-class transmitter-enabled system enhanced by a digital compass for underwater navigation, all at an attractive price.

Similar in appearance to the technically focused Shearwater Teric, the Tern TX shares its sleek design but is thinner. Unlike its “Silver outlined” standard sibling, the Tern, the Tern TX includes Air Integration and a digital compass.

While the Tern TX lacks the advanced technical capabilities of the Teric and Perdix 2, it’s ideally suited for Air, Nitrox, and 3-Gas Nitrox diving, also offering freediving and gauge modes.

The Tern TX and the standard Tern are depth-rated to 120 meters, tested to EN standards for dive computer compliance, and support Air, Nitrox, 3-Gas Nitrox, Gauge, and Freedive modes. They can log up to 500 hours of dives and offer a 20-hour battery life in dive mode.

Tern TX AMOLED screen

With a watch-style form factor, the 1.3 diameter AMOLED screen (Active-Matrix Organic Light-Emitting Diode) of the Tern TX provides crystal-clear visibility in various lighting conditions, making it easier than ever for divers to keep track of their crucial information.

The vibrant, best-in-class high-resolution display features Shearwaters renowned user interface, giving divers quick access to vital data for a safer and more enjoyable diving experience.

Shearwater Swift Transmitter

Available to purchase separately or as a package.

The Tern TX is capable of displaying tank pressure in all modes.

With smart AI technology, the Swift creates a highly reliable connection, listens for other transmitters, and only communicates when the channel is clear by avoiding collision with other signals.

Divers can now use multiple transmitters near each other without worrying about potential interference.

This advanced technology is leveraged by Shearwater’s new firmware, which includes support for up to 4 transmitters on compatible Shearwater models.

The no-tools design makes it easy to remove and replace the Swift from the 1st stage (gone is the need to find a particular size tool to tighten or loosen the transmitter, making it perfect for travel!)

A double o-ring seal protects a user-replaceable 3v CR2 lithium battery, offering up to 300 hours of runtime. The LED status indicator lets the diver know things are functioning as they should at a glance during setup.

Shearwater TERN TX Dive Computer Specifications:

• Compact, stylish and lightweight, thinner than the Teric
• Supports Air,Nitrox,3 Gas Nitrox,Gauge,and Freedive modes
• Istransmitter enabled to provide real-time gas pressure readings
• Can support up to 4 transmitters
• Has a digital compass for underwater navigation
• Has abattery life with dive mode onfor 20 hours
• Is charged wirelessly via a cradle and supports quick charge
• HasBluetooth
• Hashaptic alarms
• Has a vibrant clear 1.3 AMOLED colour screen & toughened glass
• Is depth rated to 120m
• Has a 500 hour dive log
• Is available with the new Shearwater Remora quick-connect strap
  

In combination with the Swift Transmitter, the Tern TX offers a world-class transmitter-enabled system at an attractive price
Jason Leggatt, CEO of Shearwater Research Inc.

ShearwaterWatch Computers Compared

FEATURES TERN TERN TX TERIC SCREEN SIZE 1.3″ AMOLED 1.3″ AMOLED 1.39″ AMOLED TRANSMITTERS SUPPORTED None 4 4 LENS Toughened Glass Toughened Glass Sapphire BATTERY Wireless Rechargeable Li-Ion Wireless Rechargeable Li-Ion Wireless Rechargeable Li-Ion BLUETOOTH Yes Yes Yes BATTERY DIVE TIME 20 hours 20 hours 30 hours DIGITAL COMPASS No Yes Yes DEPTH RATING 120m 120m 200m NUMBER OF GASES 3 OC 3 OC 5 OC / 5 CC MODES Air, Nitrox, 3-Gas Nitrox, Gauge, Freedive Air, Nitrox, 3-Gas Nitrox, Gauge, Freedive OC REC, OC TEC, CC/BO, Gauge, Freedive DIVE LOG HOURS 500 500 500 WEIGHT 100g 100g 119g ALARMS Vibration Vibration Vibration / Audio