Two buttons, last dive at one press
Aqualung describes the i300C as uncomplicated and intuitive. Two buttons run the menu, a single button brings up your last dive data, and History mode records up to 24 dives.
i300C
Simple, rugged and backlit, for new and experienced divers alike
Aqualung describes the i300C as uncomplicated, intuitive and rugged, and great for new and experienced divers alike. The interface is easy to use, with four operating modes, a built-in backlight and a water-activated on switch. Switch between up to three nitrox gases underwater, change the battery yourself, and send your dives to the free Diver Log+ app over Bluetooth.
Ask for the price on LINE
We get in the chat: AQUALUNG i300C · Black/Grey
- 1Tap Order on LINE: our chat opens with your model, colour and size typed in. Just send.
- 2We check stock and confirm the total with shipping in the chat.
- 3Pay by transfer or PromptPay, send the slip, and we ship with a tracking number.
- Free shipping in Thailand from ฿2,000
- Authorised dealer · brand warranty
Highlights
Built-in backlight, switches on in the water
A backlight is built in, and the computer switches on when it touches water. Audible alarms come with a high-visibility LED warning light.
Four modes, up to three gases underwater
Choose Air, Nitrox, Gauge or Free Dive. Mix up to three nitrox gases and switch between them underwater, from 21% to 100% O₂, with a max PO2 of 1.1 to 1.6. The Z+ algorithm has gradient factors and an optional deep stop with a countdown timer. It adjusts for altitude automatically and lets you select salt or fresh water.
Change the battery yourself, keep your settings
It runs on a standard battery you can change yourself, and the memory keeps your settings and calculations while you swap it.
Bluetooth 4.0 and the Diver Log+ app
Bluetooth 4.0 sends your dives to the free Diver Log+ app on iOS and Android, and you can update the computer's software yourself over Bluetooth.
Who it is for
Great for
- New and experienced divers: Aqualung calls the i300C great for both
- Nitrox divers who want to switch gases underwater: up to 3 gases, 21–100% O₂
- Divers who want to log dives on their phone, over Bluetooth to the Diver Log+ app
- Divers who want to change the battery themselves: settings and calculations are kept during a change
Maybe not for
- Divers who need a built-in compass: Aqualung lists none for the i300C
- Divers who want a colour screen and a rechargeable battery: the i300C has a segment LCD, while Aqualung's i330R has an IPS colour screen and a rechargeable battery (Aqualung aims that model at advanced divers who travel)
Specifications
- Modes
- Air, Nitrox, Gauge, Free Dive
- Gases
- Up to 3 Nitrox mixes, 21–100% O2, switchable underwater
- PO2 setting
- 1.1 to 1.6
- Algorithm
- Z+, gradient factors
- Display
- Segment LCD
- Battery
- User-changeable standard battery; settings and calculations kept during a change
- Logbook
- History mode: last 24 dives
- Alarms
- Audible, plus a high-visibility LED warning light
- Backlight
- Yes
- Connectivity
- Bluetooth 4.0 to the Diver Log+ app (iOS, Android); software updates over Bluetooth
- Buttons
- 2
- Compass
- No
- Mounting
- Wrist or console
FAQ
i100, i300C or i330R: which one?
All three have four modes (Air, Nitrox, Gauge, Free Dive). The i100 is Aqualung's entry-level model for new divers: one button, two gases, no backlight, no Bluetooth, wrist only. The i300C, which Aqualung calls great for new and experienced divers alike, has two buttons, up to three gases, a backlight, Bluetooth and console mounting. The i330R has an IPS colour screen, a rechargeable battery and Bluetooth 5.0; Aqualung aims it at advanced divers who travel. Not sure? Ask us on LINE.
What battery does it use, and how long does it last?
Aqualung says it is a standard battery you can change yourself, and your settings and calculations are kept during a change. The page gives no battery type or battery life; if you need to know before you order, ask us on LINE.
Does it connect to my phone?
Yes. Bluetooth 4.0 connects it to the free Diver Log+ app on iOS and Android, and software updates also come over Bluetooth.
Can I use it for freediving?
Yes, it has a Free Dive mode. The other modes are Air, Nitrox and Gauge.
Wrist only, or can it go in a console?
Aqualung lists both wrist and console mounting for the i300C. If you want it in a console, ask us on LINE before you order.
Does it have a compass?
No. Aqualung lists no compass for the i300C. If you need one built in, ask us on LINE.
