Shearwater TERN TX



The Shearwater Tern TX Dive Computer offers advanced features, a robust design, and a user-friendly interface, ideal for all divers. Dive smart!

In stock





The Shearwater TERN TX, our most compact dive computer redefines diving convenience and versatility for sport divers. Incorporating a compact design with advanced features, the TERN TX includes both optional wireless air integration with up to 4 tanks and a digital compass. Its enhanced visibility, user-friendly interface, and compatibility with multiple diving modes make it an essential tool for divers seeking reliability and ease of use.

Why Choose the Shearwater Tern TX?

The Shearwater Tern TX Dive Computer stands out for its advanced features and robust design. Its multiple dive modes, clear display, and integrated compass ensure that you have all the tools necessary for a safe and enjoyable dive. The user-friendly interface and long battery life make it a dependable choice for divers of all levels. Enhance your diving experience with the Shearwater Tern TX, and trust in its performance and reliability on every dive.

Designed and Built in Canada and depth-rated to 120 meters.

Key Features

Advanced Dive Modes: The Shearwater Tern TX supports multiple dive modes including Air, Nitrox, Trimix, and Gauge. This versatility makes it suitable for a wide range of diving activities, from simple recreational dives to more complex technical expeditions.

Crystal Clear Display: The high-resolution, full-color display ensures that all your essential dive information is easy to read in any condition. Whether you’re in bright sunlight or deep underwater, the display remains clear and visible, providing you with the data you need at a glance.

Integrated Compass: Navigate with confidence using the built-in 3-axis digital compass. This feature helps you maintain your course and orientation during your dives, adding an extra layer of safety and convenience.

Robust and Durable: The Tern TX is built to withstand the rigors of underwater exploration. Its durable construction ensures it can handle the demands of both shallow and deep dives, making it a reliable companion for any diving adventure.

User-Friendly Interface: Navigating through the Tern TX’s features is a breeze thanks to its intuitive interface. The easy-to-use menu system allows you to quickly access and customize your dive settings, ensuring a hassle-free diving experience.

Long Battery Life: With an impressive battery life, the Shearwater Tern TX ensures you can focus on your dive without worrying about power. The user-replaceable battery adds convenience, allowing you to dive longer with minimal interruptions.

Connectivity: Stay connected with the Shearwater Cloud app. Seamlessly log and share your dives, analyze dive data, and connect with the diving community. The Tern TX’s Bluetooth compatibility makes data transfer effortless.

Shearwater Tern TX Specifications


  • Air
  • Nitrox
  • 3 Gas Nitrox
  • Gauge
  • Freediving


  • Decompression computer
  • Air integrated
  • Connects up to 4 transmitters
  • 3-axis, tilt compensated, digital compass
  • Bluetooth wireless technology
  • Switchable vibration alerts
  • Upgradeable firmware
  • 316 Stainless bezel and buttons
  • 22mm strap size with quick connect (one long and one short strap included)
  • Ballistic nylon polymer case


  • Screen Resolution: 360 x 360
  • Display Type: Full colour AMOLED
  • Screen Brightness: Minimum 300 nits. Typical at 350 nits
  • Display Size: 3.3cm / 1.3″
  • Toughened Glass Window: Yes
  • Battery Type: Rechargeable Li-ion battery
  • Battery Life: up to 20 hours (medium brightness), up to 6 months (standby)
  • Wireless Charging Station: Yes
  • Number of Gases: 3 OC
  • Depth Rating: 120m / 394ft
  • Dive Log Capacity (10-second rate): 500 Hours
  • Size (Dive Computer): Diameter – 50mm
  • Size (Dive Computer): Thickness – 16mm
  • Weight (Dive Computer): 100g


  • TERN TX dive computer
  • Wireless charging station with USB-C cable
  • Inspection Checklist Card
  • Product Info Guide
  • Screen Protector
  • Remora band quick release installed on the computer
  • 1 short Remora band for smaller wrists

Specifications Summary

Feature Details
Display Type High-resolution, full-color
Dive Modes Air, Nitrox, Trimix, Gauge
Navigation 3-axis digital compass
Battery Life Long-lasting, user-replaceable
Connectivity Bluetooth, Shearwater Cloud app
Durability Robust, durable construction
Interface User-friendly menu system


Additional information

Additional information