Tern TX – Compact Air-Integrated Recreational Dive Computer

The Shearwater Tern TX combines a compact, travel-friendly wrist design with the added capability of air integration for real-time tank pressure monitoring. Built for divers who want a smaller computer without sacrificing high-end features, the Tern TX pairs with the Swift TX transmitter to display remaining gas, gas time, and consumption trends directly on a bright AMOLED screen.

Featuring Shearwater’s simple two-button interface, crisp colour display, and dependable decompression algorithm, the Tern TX delivers the performance divers expect in a streamlined form suited for daily diving, training, and warm-water travel. It’s a powerful step forward for recreational divers who want clarity, reliability, and air integration in a compact package.

Key Features

• Air-integration ready when paired with the Swift TX transmitter
• Compact wrist-mounted design with brilliant AMOLED display
• High-visibility colour screen for clear data in any conditions
• Two-button navigation for fast, intuitive menu operation
• Multi-gas nitrox support with decompression capability
• Vibration alerts for depth, safety stops, and critical notifications
• Wireless Bluetooth connectivity for dive logs and firmware updates
• Durable polymer housing suited for travel and everyday diving

Dive Modes

• Air
• Nitrox
• Multi-gas nitrox
• Gauge / bottom timer

Technical Specifications

• Display type: Full-colour AMOLED
• Brightness: Tuned for strong visibility above and below water
• Battery type: Internal rechargeable Li-ion
• Charging: Wireless charging dock
• Battery life: Long runtime depending on brightness settings
• Air integration: Compatible with Shearwater Swift TX transmitters
• Gas mixes: Multiple nitrox gases (1–100% O?)
• Algorithm: Bühlmann ZHL-16C with gradient factors
• Connectivity: Bluetooth wireless syncing
• Depth rating: Suitable for recreational and decompression diving
• Construction: Lightweight, low-profile casing built for travel
• Interface: Two-button control system

What’s Included

• Tern TX dive computer
• Wireless charging station with USB cable
• Wrist strap
• Screen protector
• Quick-start documentation

Sold by Southern Maryland Divers as an authorized Shearwater dealer – full manufacturer warranty included.