1/1.7-inch sensor with 155° super-wide FOV for immersive HD FPV video
In stock
Fpv
DJI O3 Air Unit
The DJI O3 Air Unit is a complete HD digital FPV transmission system for custom drone builds, pairing a stabilised camera module with DJI's O3 (OcuSync 3) transmission.
₹31,499 + 18% GST
SKU: BOTBIT-FPV-05 · Best for: Custom HD freestyle FPV quad builds
Overview
About DJI O3 Air Unit.
The DJI O3 Air Unit is a complete HD digital FPV transmission system for custom drone builds, pairing a stabilised camera module with DJI's O3 (OcuSync 3) transmission. It is built around a 1/1.7-inch sensor with a 155-degree super-wide field of view and an f/2.8 aperture, capable of recording up to 4K/60fps onboard while simultaneously streaming an HD low-latency feed to compatible DJI goggles. The result is sharp, stable HD video both in your goggles and saved to the unit's 20GB of internal storage.
Transmission reaches up to 10km (FCC), with regional limits of 2km (CE) and 6km (SRRC), at latency as low as 30ms and a live feed up to 1080p/100fps at a maximum 50Mbps bitrate. Built-in RockSteady and HorizonSteady stabilisation smooth out footage in flight, and the 2T2R omnidirectional antenna design helps maintain a stable link. The camera module weighs around 36.4g (about 28g without the camera), making it light enough for a wide range of freestyle, cinematic and long-range builds.
The O3 Air Unit is aimed at FPV builders who want DJI-quality HD video on a custom quad rather than a ready-to-fly drone. It pairs with DJI FPV goggles such as the Goggles 2, Goggles Integra and DJI Goggles 3, giving pilots flexibility to design their own airframe around DJI's digital ecosystem.
Key features
Why it stands out.
Up to 4K/60fps onboard recording with 20GB built-in storage
HD transmission up to 10km (FCC) with latency as low as 30ms
RockSteady and HorizonSteady stabilisation for smooth, level footage
Lightweight ~36.4g camera module fits custom freestyle and long-range builds
Specifications
Selection facts.
| Sensor | 1/1.7" CMOS |
|---|---|
| FOV | 155° |
| Aperture | f/2.8 |
| Equiv. Focal Length | 12.7mm |
| Max Recording | 4K/60fps |
| Transmission | Up to 1080p/100fps |
| Max Bitrate | 50 Mbps |
| Latency | as low as 30ms |
| Max Range | 10km FCC / 6km SRRC / 2km CE |
| Antenna | 2T2R omnidirectional |
| Onboard Storage | 20GB |
| Weight | ~36.4g (camera module incl.) |
Applications
Where it is used.
- Custom HD freestyle FPV quad builds
- Cinematic FPV needing 4K onboard footage
- Long-range HD FPV cruising up to several kilometres
- DIY airframes designed around the DJI digital ecosystem
- Inspection and mapping flights wanting stable HD video
- Pilots upgrading an analog build to DJI HD transmission
Buying guide
How to choose.
Choose the O3 Air Unit if you want to build a custom FPV drone with DJI-grade HD video and onboard 4K recording rather than buying a complete ready-to-fly drone. Its stabilised camera, 20GB internal storage and long-range O3 link make it a strong all-rounder for freestyle, cinematic and long-range flying on an airframe you design yourself.
You will need compatible DJI goggles to use it: the O3 Air Unit pairs with DJI Goggles 2, Goggles Integra and DJI Goggles 3. It does not work with Walksnail or HDZero goggles, so commit to the DJI ecosystem before buying. Also check your frame can mount the camera and air unit and that your power setup matches DJI's input requirements.
Keep regional rules in mind: the 10km figure is the FCC maximum, with lower limits of 6km (SRRC) and 2km (CE) reflecting different regulations. Operate within the transmission and spectrum rules that apply in your area. For pilots committed to DJI HD on a custom build, the O3 Air Unit is one of the most capable options available.
FAQ
Common questions.
Which goggles work with the O3 Air Unit?
It pairs with DJI's FPV goggles, including DJI Goggles 2, DJI Goggles Integra and DJI Goggles 3. It is not compatible with Walksnail or HDZero goggles. If you are building around the O3 Air Unit, plan to use one of these DJI headsets to view the HD feed.
Can it record 4K video onboard?
Yes. The camera module records up to 4K/60fps and includes 20GB of built-in storage for footage, while simultaneously streaming an HD feed to your goggles. The onboard recording is higher quality than the transmitted feed, so you get crisp footage to review and edit after the flight.
How far can it transmit?
Maximum range depends on region: up to 10km under FCC, 6km under SRRC and 2km under CE rules. Real-world range is affected by interference, antennas and line of sight. Always fly within visual line of sight and within the transmission limits that apply in your location.
How much does the camera module weigh?
The camera module weighs about 36.4g, or roughly 28g without the camera attached. This keeps it light enough for a wide range of freestyle, cinematic and long-range builds, though it is heavier than a bare analog camera because it includes the full HD transmission and recording hardware.
What stabilisation does it offer?
It includes DJI's RockSteady and HorizonSteady electronic stabilisation, which smooth out vibration and keep the horizon level in flight. This produces noticeably steadier footage than an unstabilised camera, making the O3 Air Unit well suited to cinematic FPV as well as fast freestyle flying.
Is it a complete camera or just a transmitter?
It is a complete HD system: a stabilised camera module plus DJI's O3 digital transmission in one. You install it on your aircraft, connect power and an antenna, and pair it with compatible DJI goggles. You do not need a separate analog camera or VTX, as both functions are built in.
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