DJI O4 Air Unit Series — O4 Air Unit / O4 Air Unit Pro / Camera Lens for FPV
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DJI O4 Video Transmission System — 4K/120fps, 15ms Racing Mode, 15km Range for FPV Drones
The DJI O4 Air Unit Series brings DJI's latest O4 video transmission technology to custom FPV builds. Featuring ultra-low latency transmission at 1080p/100fps via H.265 encoding, a new Racing Mode with as low as 15ms latency supporting up to 8 simultaneous aircraft, and up to 15km range with the dual-antenna O4 Air Unit Pro, this series sets a new standard for HD FPV digital video. The O4 Air Unit records 4K/60fps with a 1/2" sensor, while the O4 Air Unit Pro steps up to 4K/120fps with a larger 1/1.3" sensor — eliminating the need for an external action camera. Both units support Canvas Mode, Betaflight OSD, and fit frames as small as 2 inches. Available as Camera Lens Only, O4 Air Unit, or O4 Air Unit Pro.
Key Features
- O4 Video Transmission - Ultra-low latency, automatic frequency selection
- 1080p/100fps H.265 Transmission - Crisp, fluid real-time FPV feed
- Racing Mode - As low as 15ms latency, up to 8 aircraft simultaneously
- Up to 15km Range - O4 Air Unit Pro with dual-antenna design
- 4K/60fps Recording - O4 Air Unit with 1/2" image sensor
- 4K/120fps Recording - O4 Air Unit Pro with 1/1.3" image sensor
- Canvas Mode Support - Customizable OSD layout on DJI Goggles
- Betaflight OSD Compatible - Full flight data overlay support
- Fits 2" and Smaller Frames - Compact, lightweight design
- ND Filter Compatible - O4 Air Unit Pro works with DJI Avata 2 ND Filter Set
- DJI Goggles Integra Compatible - Seamless DJI ecosystem integration
- FPV Remote Controller 2 Compatible - Full DJI FPV control system support
Perfect For
- Custom FPV drone builds wanting DJI digital video
- FPV racing pilots needing ultra-low latency
- Cinematic FPV without an external action camera
- Micro and 2-inch FPV builds
- Pilots upgrading from analog or O3 systems
- Multi-aircraft FPV racing events
Variant Options
- Camera Lens Only - Replacement/upgrade lens for existing O4 Air Unit. Requires lens calibration — ensure you can perform calibration or have a technician do it before purchasing.
- O4 Air Unit - Full unit with 1/2" sensor, 4K/60fps recording, up to 10km range
- O4 Air Unit Pro - Full unit with 1/1.3" sensor, 4K/120fps recording, dual antenna, up to 15km range, ND filter compatible
Technical Specifications
Video Transmission
- System: DJI O4
- Transmission Resolution: 1080p/100fps (H.265)
- Racing Mode Latency: As low as 15ms
- Max Range (O4 Air Unit): Up to 10km
- Max Range (O4 Air Unit Pro): Up to 15km
- Simultaneous Aircraft (Racing Mode): Up to 8
- Frequency: Auto-select for maximum stability
O4 Air Unit Camera
- Image Sensor: 1/2" CMOS
- Video Recording: 4K/60fps
- Frame Compatibility: 2" and smaller
- Dimensions: 25.6×20×23.3mm
- Weight: 62g
O4 Air Unit Pro Camera
- Image Sensor: 1/1.3" CMOS
- Video Recording: 4K/120fps
- Antenna: Dual-antenna design
- ND Filter: Compatible with DJI Avata 2 ND Filter Set (ND8/16/32)
Compatibility
- Goggles: DJI Goggles Integra
- Controller: DJI FPV Remote Controller 2
- OSD: Canvas Mode + Betaflight OSD
Important Notes
- Camera Lens Only variant requires lens calibration after installation — ensure you or a technician can perform this before purchasing
- Requires DJI Goggles Integra for video reception
- Requires DJI FPV Remote Controller 2 for full system operation
- Not compatible with analog FPV goggles
Shipping Policy
Estimated Delivery: Orders typically arrive within 3-7 business days to most locations in North America.
International Shipping: Available with tracking. Transit times vary by destination.
Return & Guarantee Policy
Money-Back Guarantee: Not satisfied? We offer a 30-day return policy for a full refund or exchange.
Technical Support: Need help with compatibility or setup? Contact our FPV experts for free assistance.