DJI · vtx

DJI O3 Air Unit

DJI O3 Air Unit — still popular digital VTX with wide ecosystem support. VTX transmits video to goggles. Analog 5.8 GHz (25 mW EU) or digital DJI / Walksnail / HDZero ecosystems. Weight: 28 g. Voltage: 2S–6S (7–26 V). VTX: 1200 mW. Protocol: DJI O3.

~€13928 gDJI O3
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Use cases

  • Analog — low latency, budget, channel management
  • DJI O3/O4 — high quality, GEO and CE modes
  • Walksnail Avatar — DJI alternative with open stack

Compatibility & specs

  • Weight: 28 g
  • Voltage: 2S–6S (7–26 V)
  • VTX: 1200 mW
  • Protocol: DJI O3
  • Tags: digital, dji, o3

Buying tips

  • Indicative price ~€139 — compare alternatives in the FPV configurator.
  • Before buying verify stack size, VTX protocol and battery cell count compatibility.
  • For EU flights follow CE/NAA rules — separate from technical matching.

FAQ

What is DJI O3 Air Unit for?
DJI O3 Air Unit — still popular digital VTX with wide ecosystem support. VTX transmits video to goggles. Analog 5.8 GHz (25 mW EU) or digital DJI / Walksnail / HDZero ecosystems. Weight: 28 g. Voltage: 2S–6S (7–26 V). VTX: 1200 mW. Protocol: DJI O3.
What is DJI O3 Air Unit compatible with?
Weight: 28 g Voltage: 2S–6S (7–26 V) VTX: 1200 mW Protocol: DJI O3 Tags: digital, dji, o3
Does DJI O3 Air Unit fit my build?
Use the A2STS FPV configurator — select this part and the engine flags current, weight and protocol issues.
Which protocol does O3 Air Unit use?
DJI O3. All chain parts (VTX, camera, goggles, RX) must stay in the same ecosystem.

Specifications

Weight
28 g
Protocol
DJI O3

Builds using this part

Alternatives