DJI O4 Air Unit Pro 4K/120fps FPV Video System - 15 km Range

The DJI O4 Air Unit Pro is a high-performance digital FPV video system designed for custom drones and FPV builds. It combines a 4K camera, DJI O4 video transmission module, dual antennas, onboard recording, and low-latency live video in one compact system.

The integrated camera features a large 1/1.3-inch CMOS sensor capable of recording video at up to 4K/120fps. A wide 155° field of view provides an immersive FPV perspective, while 10-bit D-Log M offers greater flexibility for color grading and post-production.

RockSteady 3.0 electronic stabilization helps reduce vibration and unwanted movement during dynamic flights. The system also records gyro data for use with Gyroflow stabilization software.

DJI O4 transmission delivers a live view of up to 1080p at 100fps. When used with DJI Goggles 3 in Racing Mode, video transmission latency can be as low as approximately 15 ms. Maximum transmission distance reaches up to 15 km under FCC standards and up to 8 km under CE standards in open, unobstructed environments.

The O4 Air Unit Pro includes 4 GB of built-in storage for onboard recording and supports microSD cards up to 512 GB. Local video recording continues independently of the live video feed, helping preserve footage if the transmission signal is interrupted.

The system supports Canvas Mode and Betaflight OSD, allowing pilots to display and customize flight information directly inside compatible DJI goggles. It supports MSP DisplayPort, UART, and CAN interfaces and can be integrated with flight controllers running Betaflight 4.3 or later, iNav, EmuFlight, and ArduPilot.

With an input voltage range of 7.4-26.4 V, the system can be powered directly from 2S-6S LiPo batteries. Standard 20 × 20 mm and 25.5 × 25.5 mm mounting patterns simplify installation in a wide range of FPV drone frames.

Compatibility:

• DJI Goggles 3
• DJI Goggles N3
• DJI Goggles 2
• DJI Goggles Integra

DJI Controllers:

• DJI FPV Remote Controller 3
• DJI FPV Remote Controller 2

Compatibility between goggles and controllers may depend on the selected device combination and installed firmware.

Supported Flight Controller Software

• Betaflight 4.3 or later
• iNav
• EmuFlight
• ArduPilot

Package Includes

• 1 × DJI O4 Air Unit Pro camera module
• 1 × DJI O4 Air Unit Pro transmission module
• 2 × DJI O4 Air Unit Pro LHCP antennas
• 1 × DJI Air Unit Series 3-in-1 cable

Technical Specifications

• Product: DJI O4 Air Unit Pro
• Manufacturer Part Number: CP.FP.00000233.01
• Model: DF3P2904
• Image Sensor: 1/1.3-inch CMOS
• Lens Aperture: f/2.8
• Field of View: 155°
• Maximum Recording Resolution: 4K at 120fps
• Video Format: MP4
• Video Codec: H.265
• Color Profiles: Normal, 10-bit D-Log M
• Live View: Up to 1080p/100fps
• Minimum Latency: Approximately 15 ms with compatible goggles in Racing Mode
• Maximum Transmission Range: Up to 15 km FCC / 8 km CE
• Internal Storage: 4 GB
• Memory Card Support: microSD up to 512 GB
• Input Voltage: 7.4-26.4 V
• Supported Battery Voltage: 2S-6S LiPo
• Operating Frequency: 5.1 GHz and 5.8 GHz, depending on region
• Operating Temperature: -10°C to 40°C
• Transmission Module Dimensions: 33.5 × 33.5 × 13 mm
• Camera Module Dimensions: 25.55 × 20 × 23.3 mm
• Total Weight with Camera: Approximately 32 g
• Antenna Weight: Approximately 2.1 g each
• Coaxial Camera Cable Length: 130 mm
• 3-in-1 Cable Length: 100 mm
• Mounting Pattern: 20 × 20 mm and 25.5 × 25.5 mm
• Mounting Screws: M2