Key facts
- Brand
- Suunto
- Model
- D4i
- Category
- Other products
- Industry
- Health
- Documents
- 3
- Languages
- ZH · EN
- Last added
- 2026-10-09
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Suunto D4i Dive Computer User Guide
The document serves as a comprehensive user manual for the Suunto D4i dive computer. It begins with critical safety precautions regarding decompression sickness, oxygen limits, and device usage rules before providing step-by-step instructions on activating the device and navigating its display views.
Subsequent sections detail specific diving functions such as air time, ascent rate, and various dive modes including Air, Nitrox (High Oxygen), and Free. The guide also explains how to manage settings like units, alarms, and personal adjustments, along with information on wireless sensor pairing and data transmission. This manual is written in Chinese.
Suunto D4i specifications
| Dimensions (Length x Width) | 50 mm x 50 mm |
|---|---|
| Height | 16.0 mm |
| Weight | 85 g |
| Water Resistance | 100 m (ISO 6425) |
| Operating Temperature | 0 °C to 40 °C |
| Storage Temperature | -20 °C to +50 °C |
| Maintenance Interval | 200 dives or 2 years |
All Suunto D4i documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Disassembly, diagnostics and part numbers, for repair.
Questions answered in these manuals
Who is authorized to use this dive computer?
Only trained divers are allowed to use the Suunto D4i dive computer.
What is the maximum operating depth for recreational diving?
The device is intended for recreational use with a maximum operating depth of 80 meters.
What is the maximum depth for the Suunto D4i?
The maximum depth is 80 meters. It is intended for recreational use only.
From: Suunto D4i User Manual
Can I use the D4i with enriched air?
No, do not use the D4i with gas mixes containing more than 40% oxygen, as it poses a risk of fire or explosion.
From: Suunto D4i User Manual