Operating Instructions
Page 4
Doc. 15301-RevB (2023-11-24)
Features
• Vivid full color 1�3” AMOLED display
• Stainless steel bezel�
• Crush proof to 120m / 390ft
• Air, Single-gas Nitrox, and multi-gas Nitrox modes
• Up to 3 customizable gases up to 100% oxygen
• Simplified recreational diving modes
• 2 customizable layouts for every dive mode
• Bühlmann ZHL-16C with gradient factors
• Full decompression support
• No lockout for violating no-decompression limit
• No lockout for violating deco stops
• Quick NDL and full decompression planner built in
• CNS Tracking
• Gas density tracking
• Dedicated Freedive Mode
• Customizable vibration alerts
• Programmable depth sampling
• 3 watch faces available in 15 colors
• Bluetooth Dive log uploading to Shearwater Cloud
• Free firmware updates
1. Introduction
The Shearwater Tern is a dive computer for beginner to
expert divers�
Please take the time to read this manual� Your safety
may depend on your ability to read and understand the
Tern displays�
Diving involves risk and education is your best tool for
managing this risk�
Do not use this manual as a substitute for proper dive
training and never dive beyond your training� What you
don’t know can hurt you�
To Next Page