Shearwater Tern TX Dive Computer
Dispatched 1 to 2 days
The Shearwater Tern TX is an incredible wearable sport-diving computer for those seeking a comfortable, watch-like round form. The Tern TX offers a world-class transmitter-enabled system with digital compass and Air, Nitrox, 3-Gas Nitrox, Gauge and Freedive modes, boasting a 120m depth rating.
Shearwater Tern TX Dive Computer
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.
High Resolution Amoled Display
With a watch-style form factor, the 1.3” diameter AMOLED screen 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 Shearwater’s renowned user interface, giving divers quick access to vital data for a safer and more enjoyable diving experience.
Air Integration Ready
You can enhance your dive experience at any time by pairing your Tern TX with an optional Swift Transmitter or purchasing them together as a package.
The transmitter enables you to receive real-time gas pressure data and provides accurate calculations of remaining gas time for extended dives. You can easily view all dive metrics on one screen, enhancing your underwater adventure and enjoyment.
Digital Compass
The Tern TX's built-in digital compass provides clear headings to keep you on track during your dive, and the reciprocal heading assists you in returning to your starting point effortlessly. With the Tern TX, underwater navigation has never been more straightforward.
Dive Modes
The Shearwater Tern TX is ideal for decompression and no-decompression diving, and multiple recreational dives with Shearwater's tested and proven reliable algorithm working in the background. You'll be able to use this dive computer with 5 modes: Air, Nitrox, 3 Gas Nitrox, Gauge and Freediving.
Shearwater TERN TX Dive Computer Features
- Decompression computer
- Air integration ready for up to 4 transmitters
- Dive modes: Air, Nitrox, 3 Gas Nitrox, Gauge and Freediving
- 3-axis, tilt-compensated, digital compass
- Full colour 1.3” Amoled Display
- Bluetooth wireless technology
- Switchable vibration alerts
- Upgradeable firmware
- Wireless recharging
- 316 Stainless bezel and buttons
- 22mm strap size with quick connect (one long and one short strap included)
- Depth rated to 120m
- 500 hour dive log
What's included?
- Tern TX Dive Computer
- Wireless Charging Station with USB-C Cable
- Product Info Guide
- Screen Protector
- Remora Band with Quick Release System
- 1 Short Remora Band (for smaller wrists)
“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.
Shearwater Watch 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 |
Answers to common questions about this product, including sizing, compatibility, and usage.
Product FAQs
What are the key functional differences between the Tern TX and Tern computers?
• Air Integration (AI): It can connect with up to four Swift wireless transmitters to monitor real-time cylinder pressure and calculate your true Gas Time Remaining (GTR).
• Digital Compass: It features a 3-axis, tilt-compensated digital compass for underwater navigation.
Otherwise, Tern and Tern TX are identical in their physical dimensions, core software, and basic capabilities. Both support Air, single-gas Nitrox, 3-gas Nitrox, Gauge, and Freediving modes down to a maximum depth rating of 120m.
How do the Tern TX differ from the Teric in terms of advanced diving modes?
The Shearwater Teric, on the other hand, is purpose-built for the most extreme technical diving environments. It features a 200m depth rating and supports up to 5 open-circuit and 5 closed-circuit gases, including dedicated OC Technical (full Trimix) and CC/BO (Closed Circuit/Bailout) rebreather modes. It also includes full air integration and a digital compass out of the box (similar to the Tern TX).
Who are the Tern TX and Tern dive computers for?
• The Shearwater Tern is for sport or recreational divers who want a sleek, lightweight, everyday watch-style dive computer. It is perfect for those who do not use air integration, rely on a traditional analogue SPG and compass, and want Shearwater's legendary reliability at a more accessible price.
On the other hand, the advanced Shearwater Teric is built for technical divers, mixed-gas divers, and rebreather (CCR) users who need advanced decompression software, a depth rating of 200 metres, and premium sapphire crystal durability. It's the ultimate tool for serious divers who want a daily-wear dive watch without compromising on any advanced capabilities.
What is the physical difference between the Shearwater Tern TX and Tern?
- 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: Internal Rechargeable Li-ion battery
- Battery Capacity (approx): 1.33 Wh
- 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
SHIPPING:
We aim to dispatch all in-stock items within 2 working days but will inform you of approximate delivery times should any item on your order be out of stock or on supplier backorder due to current manufacturing or transport delays caused by global shortages and/or impeded production.
Please refer to our Shipping Policy and Returns & Refunds Policy for detailed information on delivery terms and returns.
Our 2022 shipping rates are as follows:
• UK mainland orders £45 and over: FREE - DPD Delivery
• UK mainland orders under £45: £4.90 Fixed Rate - DPD Delivery
• Channel Islands, Isle of Man, Highlands & Northern Ireland: £14.9 Fixed Rate
• European Union: £13.90 + 5% of order value (maximum £30)
• Rest of the World: £19.50 + 8% of order value (maximum £55)
• BFPO Post Codes: £20
INTERNATIONAL EXCEPTIONS:
For international orders containing weights, cylinders (excluding suit inflation bottles) and Suex scooters please contact us in advance before placing your order.
These products are not included in our global max-capped shipping rates and are only shipped outside of UK mainland after freight cost is calculated based on total weight, dimensions of parcel, location of delivery and the courier service used. We will let you know what this cost will be before processing any order.
All cylinders we ship within and outside of UK mainland are filled and tested on site before being emptied for dispatch. Cylinders shipped outside of the UK will be empty and will also have their valves removed, requiring reassembly after you receive delivery. Twinset manifolds and bands will also be removed and dispatched together with the cylinders for safe global shipping.
RETURNS & REFUNDS
Please contact us before any return with your order number and date details. Receive our Returns Authorisation Form and instructions and enclose them with your return to expedite a refund. Detailed information is available in our Returns & Refunds Policy.
Email us at sales@dirdirect.com or call us on +44(0)1305 824 555
Note that all returned items are shipped at the customer's own risk and remain the customer's property until received by Underwater Explorers, so please ensure they are packaged well and use reliable postal services with tracking facilities. The
goods will be inspected on arrival.
Return postages are at your own cost and our outbound shipping costs (if items are sold with integrated basic shipping charges) may be deducted from any UK mainland refund unless linked to a fault/defect claim.
Please contact us with your order number and name before sending any returns to:
Underwater Explorers – Returns
Unit 1, Maritime Business Centre
Mereside, Portland
Dorset, DT5 1FD
United Kingdom
Please refer to our Shipping Policy and Returns & Refunds Policy for detailed information.
