Shearwater
Tern TX
Tern TX
Order online today. Usually dispatched from Oceanauts within 7–10 working days, subject to supplier stock. Delivery time is additional. Any different timing stated for this product takes precedence; we will contact you promptly if the estimate changes.
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A compact, watch-style colour dive computer for air and nitrox diving. The Tern TX adds wireless tank-pressure monitoring with an optional transmitter and a built-in digital compass.
Why we’ve selected it
This is an option for divers who prefer a smaller computer on the wrist for local diving and travel. If reading small numbers is a concern, we recommend comparing it with a larger-screen model before deciding.
Key features
Four-button controls and a colour AMOLED screen. Bluetooth log transfer, vibration alerts, updateable firmware and wireless charging. Supports up to four optional transmitters.
Choosing your setup
A compatible transmitter is required for tank-pressure monitoring and is not included in this listing. These models support air and nitrox; for trimix or rebreather modes, we can help you choose a different computer.
What’s included
Tern TX computer, wireless charging station with USB-C cable, screen protector and product information guide. Remora quick-release band and an additional short band.
Technical specifications
| Modes | Air, nitrox, three-gas nitrox, gauge, freediving |
|---|---|
| Display | 1.3-inch AMOLED, 360 × 360 |
| Battery | Rechargeable lithium-ion |
| Battery life | Up to 20 hours at medium brightness |
| Depth rating | 120 m |
| Log capacity | 500 hours at 10-second sampling |
| Air integration | Up to four optional transmitters |
| Digital compass | Yes |
| Strap width | 22 mm |
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