Shearwater TERN TX

Shearwater Tern TX Dive Computer

Compact, Air-Integrated Dive Computer with Compass for Recreational Divers

The Shearwater Tern TX is a compact, watch-style dive computer designed for recreational and advanced sport divers seeking wireless air integration and built-in navigation in a sleek, intuitive package. Equipped with a 1.3” full-color AMOLED display, the Tern TX offers real-time tank pressure monitoring (when paired with the optional Shearwater Swift transmitter) and a 3-axis digital compass, enhancing underwater awareness and safety.

Built with Shearwater’s renowned Bühlmann ZHL-16C algorithm and supporting up to three nitrox gas mixes, the Tern TX provides full decompression capabilities. Its vibration alerts, customizable interface, and wireless charging make it a reliable and user-friendly companion for divers at any level.

Main Features

• Wireless Air Integration – Supports up to 4 Swift transmitters for real-time tank pressure data
• Integrated 3-Axis Digital Compass – Tilt-compensated for accurate underwater navigation
• 1.3” Full-Color AMOLED Display – High contrast and readability in all conditions
• Bühlmann ZHL-16C Algorithm – With user-adjustable gradient factors for customizable decompression
• Multiple Dive Modes – Air, Nitrox, 3-Gas Nitrox, Gauge, and Freediving
• Vibration and Visual Alerts – Discreet notifications for critical dive information
• Wireless Charging – Includes USB-C charging dock for convenient power-up
• Bluetooth Connectivity – Seamless log syncing via Shearwater Cloud app
• Customizable Interface – Personalize display elements and colors to suit preferences
• Remora™ Quick Release System – Easy strap changes to accommodate different wrist sizes and styles

Technical Specifications

• Display: 1.3” AMOLED, 360 × 360 resolution
• Dive Modes: Air, Nitrox, 3-Gas Nitrox, Gauge, Freediving
• Gas Mixes: Up to 3 Nitrox mixes (up to 100% O₂)
• Algorithm: Bühlmann ZHL-16C with adjustable gradient factors
• Depth Rating: 120 m / 394 ft
• Battery: Internal rechargeable Li-ion, wireless charging
• Battery Life: Up to 20 hours of diving; up to 6 months in standby mode
• Logbook Capacity: 500 hours
• Connectivity: Bluetooth Smart
• Alerts: Vibration and visual
• Compass: 3-axis, tilt-compensated digital compass
• Dimensions: Diameter – 50 mm; Thickness – 16 mm
• Weight: 100 g
• Strap: 22 mm width, includes standard and short Remora™ bands

The Shearwater Tern TX combines advanced features like wireless air integration and a digital compass in a compact, user-friendly design, making it an ideal choice for recreational and advanced divers. Its intuitive interface, customizable display, and robust build ensure that divers can focus on their underwater experience with confidence and clarity. Whether you're exploring local dive sites or traveling to exotic locations, the Tern TX is a reliable companion that adapts to your diving needs.