
- Description
The DJI O4 Air Unit Pro PNP Installation Version is a high-performance FPV digital video transmission system designed for professional drone pilots and advanced FPV builds. Powered by the DJI O4 transmission system, this air unit delivers ultra-low latency, long-range HD video transmission, and professional-grade onboard recording in a compact and durable design.
Thanks to its dual-antenna 2T2R configuration, the O4 Air Unit Pro can achieve transmission distances of up to 15 km (FCC) while maintaining stable and responsive video feeds. The system automatically selects the most stable frequency to ensure reliable signal quality during flight.
The integrated 1/1.3-inch CMOS sensor significantly improves image quality and low-light performance. It supports 4K video recording at up to 120 fps, making it possible to capture cinematic footage without requiring an additional action camera. The wide 155° field of view provides immersive FPV visuals and ultra-wide aerial shots.
For competitive pilots, the racing mode reduces transmission latency to as low as 15 ms, delivering extremely responsive control for high-speed FPV racing.
The Betaflight Canvas Mode and customizable OSD support allow pilots to fully control what telemetry data appears in the goggles, improving situational awareness and flight precision.
This PNP installation version is intended for direct integration into custom drone builds and therefore does not include retail packaging.
Key Features
- DJI O4 digital FPV transmission system
- Dual-antenna 2T2R design for improved range and signal stability
- Maximum transmission distance up to 15 km (FCC)
- Ultra-low latency racing mode (as low as 15 ms)
- 1/1.3-inch CMOS camera sensor for high-quality video capture
- 4K recording up to 120 fps
- 1080p / 100 fps real-time video transmission
- H.265 video encoding for efficient HD streaming
- Compatible with Betaflight Canvas Mode and OSD customization
- Supports ND filters for DJI Avata 2 for improved exposure control
- Designed for professional FPV drones and custom builds
Specifications
General
- Model: DJI O4 Air Unit Pro
- Weight (including camera): 32 g
- Antenna weight: 2.1 g each
- Antenna length: 110 mm
Dimensions
- Transmitter module: 33.5 × 33.5 × 13 mm
- Camera module: 25.55 × 20 × 23.30 mm
- Coaxial cable length: 130 mm
- 3-in-1 cable length: 100 mm
Transmission
- Operating frequencies:
- 5.170 - 5.250 GHz
- 5.725 - 5.850 GHz
Transmitter Power (EIRP)
- 5.1 GHz: <23 dBm (CE)
- 5.8 GHz: <30 dBm (FCC) / <14 dBm (CE) / <30 dBm (SRRC)
Maximum Range
- Up to 15 km (FCC)
- Up to 8 km (CE / SRRC)
Live View Quality
- 1080p @ 30 / 50 / 60 / 100 fps
- Communication bandwidth: up to 60 MHz
- Antennas: 2 (2T2R)
Latency
With DJI Goggles 3 (Race Mode):
- 15 ms at 1080p / 100 fps
With DJI Goggles N3:
- 19 ms at 1080p / 100 fps
With DJI Goggles 2 or DJI Goggles Integra:
- <30 ms at 1080p / 100 fps
Camera Specifications
- Sensor: 1/1.3-inch CMOS
- Field of View: 155°
- Equivalent focal length: 12 mm
- Aperture: f/2.8
- Focus range: 0.6 m - ∞
ISO Range
- Auto: 100 - 25600
- Manual: 100 - 25600
Video Resolution
- 4K (4:3): 3840 × 2880 @ 30 / 48 / 50 / 60 fps
- 4K (16:9): 3840 × 2160 @ 30 / 48 / 50 / 60 / 100 / 120 fps
- 2.7K (4:3): 2888 × 2016 @ 30 / 48 / 50 / 60 fps
- 2.7K (16:9): 2688 × 1512 @ 30 / 48 / 50 / 60 / 100 / 120 fps
- 1080p (4:3): 1440 × 1080 @ 30 / 48 / 50 / 60 / 100 / 120 fps
- 1080p (16:9): 1920 × 1080 @ 30 / 48 / 50 / 60 / 100 / 120 fps
Video format: MP4
Maximum bitrate: 130 Mbps
Color Modes
- Normal
- D-Log M
Stabilization
- RockSteady 3.0+
- Gyroflow support (when stabilization disabled)
Hardware
- Input Voltage: 7.4 - 26.4 V
- Operating Temperature: −10 °C to +40 °C
Storage
- Built-in Storage: 4 GB
- Supported Storage: microSD card up to 512 GB
Recommended microSD cards include Lexar Professional 1066x and Kingston Canvas GO! Plus series.
Compatibility
Supported flight controller firmware:
- Betaflight 4.3.0 or newer
Supported goggles and controllers:
- DJI Goggles 3 + DJI FPV Remote Controller 3
- DJI Goggles N3 + DJI FPV Remote Controller 3
- DJI Goggles 2 / DJI Goggles Integra + DJI FPV Remote Controller 2
Package Contents
- 1 × DJI O4 Air Unit Pro Camera Module
- 1 × DJI O4 Air Unit Pro Transmitter Module
- 2 × DJI O4 Air Unit Pro Antennas
- 1 × DJI O4 Air Unit Pro 3-in-1 Cable