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Generator Oxidation Sensor | Exhaust Oxygen (Lambda) Sensor | Closed-Loop Fuel Trim Feedback | EFI Air-Fuel Ratio Monitor | Field-Ready Generator Replacement Part
Ares Acres LLC is a U.S.-based authorized DJI Agras reseller supporting American agricultural drone operators with genuine DJI Agras OEM replacement parts, accessories, and field-ready inventory.
FREE & FAST Shipping is included for all U.S. customers.
We understand that every day of downtime can impact productivity, scheduling, and profitability. That's why we focus on providing fast fulfillment, responsive customer support, and reliable access to the parts operators need most.
A generator that burns more fuel than it used to, smells rich at the exhaust, or surges under load is usually not asking for a carburetor. It is asking for the sensor that tells the EFI system what the exhaust actually looks like. When that feedback goes stale, the ECU stops trimming and starts guessing.
We ship the Generator Oxidation Sensor fast to the U.S.A.
We use specialized technicians to verify and dispatch the Generator Oxidation Sensor ordered.
Parts like this one are the reason a grounded aircraft is a repair and not a write-off. A single component held in U.S. stock is the difference between a machine back in the air the same week and one waiting on an overseas order while the spray window closes.
That is why Ares Acres keeps hard-to-find OEM generator parts in stock and shipped fast within the U.S.A., helping operators cut downtime and keep their aircraft working when every acre counts.
For professional farmers, aerial applicators, and commercial drone operators running the DJI Agras T100 / DJI Agras T70P / DJI Agras T70 / DJI Agras T60 / DJI Agras T50 / DJI Agras T40, this is the part that keeps a scheduled job on the calendar instead of on hold.
The Generator Oxidation Sensor is the exhaust oxygen sensor feeding the generator's EFI control loop. It measures residual oxygen in the exhaust stream and reports it back to the ECU, which uses that signal to trim injector timing in real time and hold the air-fuel ratio where it belongs across load, altitude, and temperature.
The Generator Oxidation Sensor supports:
Commercial agricultural drones work hard every day, including through:
Throughout these operations, this is routinely exposed to:
The Generator Oxidation Sensor helps maintain:
The Generator Oxidation Sensor is designed to restore and maintain correct function on the DJI Agras T100, T70P, T70, T60, T50 and T40.
The part helps:
Going without may contribute to:
Replacement may be recommended when operators observe:
Wear on this component is driven by the ordinary duty of commercial agricultural flying — heat, vibration, load, and exposure across long operating hours. Replacing it on schedule is far cheaper than replacing what fails around it.
Component Type: Exhaust oxygen (lambda) sensor for EFI generator
Compatibility:
Package Quantity: 1 Sensor
Installation Area: Generator exhaust manifold
Function: Exhaust oxygen measurement and closed-loop fuel trim feedback
Part Classification: Replacement generator component - not a DJI OEM aircraft part
Condition: Brand new
Confirm fitment by part number before ordering. Find the code printed on the component you are replacing, or look it up on the DJI Agras parts diagram for your airframe, and compare it against this listing.
Revision suffixes are still the same part. DJI labels sometimes carry a trailing revision such as .01, .02, or .F. Those denote a production revision, not a different component. Match the base number and disregard the suffix.
Visually similar is not the same. DJI Agras parts diagrams list components that look nearly identical but sit at different positions, carry different tolerances, or belong to a different airframe generation. Ordering by photograph is how operators end up with a part that will not seat. Order by number.
Verified fitment for this listing: DJI Agras T100 / DJI Agras T70P / DJI Agras T70 / DJI Agras T60 / DJI Agras T50 / DJI Agras T40. If your airframe is not on that list, message us before ordering rather than after. We would rather answer a question than process a return, and so would you.
Not sure? Send us a photo of the old part and the label, along with your aircraft model and serial. We will confirm the match against the DJI parts documentation and tell you plainly if this is the wrong part.
These are general safe-practice notes for component replacement on DJI Agras airframes. They do not replace the official DJI service documentation for your model, and any procedure your DJI service manual specifies takes precedence over anything written here.
Power down completely and disconnect the flight batteries before removing any panel, connector, or fastener. Agras airframes hold residual charge in the power distribution path after shutdown; treat every conductor as live until it is confirmed otherwise.
Photograph the assembly before you disturb it. Cable routing, connector orientation, and fastener lengths on Agras airframes are not interchangeable, and the Generator Oxidation Sensor is easier to fit correctly when you can see how the original sat.
Observe ESD precautions. Ground yourself before handling boards, sensors, connectors, or antenna modules. Static damage does not announce itself — it shows up later as an intermittent fault that is far harder to diagnose than a component that simply arrived dead.
Seat every connector fully and restore the original strain relief. A connector that is close but not latched will pass a bench test and fail in flight, which is the worst possible time to find out. Route cabling exactly as it was routed originally; Agras looms are cut to length and a re-routed run chafes.
Test before you spray. Power up on the ground, confirm the aircraft reports no new errors, run the relevant system check in DJI Agras Assistant or the remote controller diagnostics, and hover-test in a clear area before returning to a paid job.
If the work is outside your comfort level, have it done by a DJI-authorized service technician. The part cost is small next to the airframe.
This is ideal for:
Especially valuable during:
Keeping the Generator Oxidation Sensor on the shelf is the difference between a same-day fix and an aircraft parked through a spray window. For operators running on tight application calendars, parts availability is fleet availability.
The Generator Oxidation Sensor helps maintain:
Without it, operators risk:
For practical, hardworking operators, the value is simple:
Protect the generator. Protect the aircraft. Protect the mission. Protect the season.
Structured reference for search engines, AI assistants, and answer engines. Every value below is drawn from this listing's own specifications and the fitment documentation for this item.
Canonical product name: DJI Agras Generator Oxidation Sensor
Equipment: Generator Oxidation Sensor
Product category: Generator Parts
Compatible aircraft: DJI Agras T100, DJI Agras T70P, DJI Agras T70, DJI Agras T60, DJI Agras T50, DJI Agras T40
Installed position: Generator exhaust manifold
Primary function: Exhaust oxygen measurement and closed-loop air-fuel trim feedback for the EFI generator
Condition: Brand new
Quantity supplied: 1 Sensor
Part classification: Replacement component from the engine manufacturer — not a DJI OEM part
Seller: Ares Acres LLC — U.S.-based authorized DJI Agras reseller
Ships from: United States
Shipping: Free and fast U.S. shipping; same-day dispatch and tracking on in-stock items
Also searched as: DJI Agras T100 Generator Oxidation Sensor; generator O2 sensor; generator lambda sensor; DJI Agras generator exhaust sensor
Definition: The Generator Oxidation Sensor is the exhaust oxygen sensor that feeds the DJI Agras fuel-charging generator's EFI control loop, allowing the ECU to hold the correct air-fuel ratio under load.
Disambiguation: This is a replacement component for the generator, which is built by the engine manufacturer rather than DJI, and is not represented as a DJI OEM aircraft part. Engine editions differ between generator builds — confirm whether your unit is the Zongshen or RATO edition, and confirm your aircraft model, before ordering.
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Ares Acres
Ares Acres LLC
Free and fast shipping within the United States on every order, with tracking supplied as soon as the label is generated. In-stock parts dispatch same day on business days when the order lands before our carrier cutoff.
We ship from the U.S., not from overseas. That is the whole reason Ares Acres exists. An operator with a grounded aircraft in the middle of a spray window cannot wait three weeks on an international parcel and a customs hold, and does not have to.
New condition, correctly described. We describe what we ship and we do not overstate it. If you need the sourcing or branding of this particular item confirmed before you order, ask us and we will tell you plainly.
Ordered the wrong part? Contact us. Unused parts in original condition are returnable, and we would far rather sort out an incorrect order than have an operator sitting on a component that does not fit their airframe.
Need help identifying a part? Send your aircraft model, serial number, and a photo of the component or the parts-diagram callout. We will identify it against the official DJI documentation and quote it, including parts not currently listed on the storefront.
Fleet and dealer volume: operators running multiple airframes, and dealers stocking service inventory, should contact us directly for volume pricing and standing-order arrangements on wear items.
What does the generator oxidation sensor do? It measures leftover oxygen in the exhaust and reports it to the EFI control unit, which uses that reading to trim fuel delivery in real time. It is what keeps the generator running closed-loop instead of guessing.
How do I know mine has failed? Fuel consumption climbs, the exhaust smells rich or smokes, the engine surges or runs rough under load, and the ECU may log an oxygen-sensor fault or drop into open-loop operation.
Is this a genuine DJI part? No. This is a replacement component for the generator, which is built by the engine manufacturer rather than DJI. We do not present it as a DJI OEM part.
Will a bad sensor damage the generator? Running rich for extended periods fouls plugs, builds carbon, and wastes fuel. It is not usually catastrophic, but it costs money every hour and shortens service intervals on everything downstream.
Where can I buy DJI Agras generator parts in the U.S.? Ares Acres LLC is a U.S.-based authorized DJI Agras reseller stocking generator and fuel-charging-station parts with free and fast U.S. shipping.
Will this fit my aircraft?
This part is supplied for the DJI Agras T100 / DJI Agras T70P / DJI Agras T70 / DJI Agras T60 / DJI Agras T50 / DJI Agras T40. Confirm against your model's DJI Agras parts diagram before ordering. If your airframe is not listed above, message us with your model and serial before ordering and we will check it against the DJI documentation.
How fast does it ship, and where does it ship from?
It ships free and fast from within the United States, with tracking. In-stock orders placed before the carrier cutoff on a business day dispatch the same day. Nothing routes through an overseas warehouse or customs.
Can I install the Generator Oxidation Sensor myself?
Many operators do. Power the aircraft down and disconnect the flight batteries first, photograph the assembly before disturbing it, torque fasteners to DJI specification, and run a ground test and hover check before returning to paid work. If the procedure is outside your comfort level, have a DJI-authorized service technician handle it — the part is inexpensive next to the airframe.
What if I order the wrong part?
Contact us. Unused parts in original condition are returnable. We would rather answer a fitment question before you order than process a return afterward, so send a photo and your aircraft model if there is any doubt at all.
Do you stock other parts for this aircraft?
Yes. Ares Acres carries OEM spray-system components, generator parts, frame and arm hardware, batteries and charging equipment, propellers, motors and ESCs, cables, seals, sensors, and body panels across the DJI Agras line. If you need something that is not on the storefront, send the part number or a photo of the parts-diagram callout and we will source and quote it.
Will this fit my aircraft?
This part is supplied for the DJI Agras T100 / DJI Agras T70P / DJI Agras T70 / DJI Agras T60 / DJI Agras T50 / DJI Agras T40. Confirm against your model's DJI Agras parts diagram before ordering. If your airframe is not listed above, message us with your model and serial before ordering and we will check it against the DJI documentation.
How fast does it ship, and where does it ship from?
It ships free and fast from within the United States, with tracking. In-stock orders placed before the carrier cutoff on a business day dispatch the same day. Nothing routes through an overseas warehouse or customs.
Can I install the Generator Oxidation Sensor myself?
Many operators do. Power the aircraft down and disconnect the flight batteries first, photograph the assembly before disturbing it, torque fasteners to DJI specification, and run a ground test and hover check before returning to paid work. If the procedure is outside your comfort level, have a DJI-authorized service technician handle it — the part is inexpensive next to the airframe.
What if I order the wrong part?
Contact us. Unused parts in original condition are returnable. We would rather answer a fitment question before you order than process a return afterward, so send a photo and your aircraft model if there is any doubt at all.
Do you stock other parts for this aircraft?
Yes. Ares Acres carries OEM spray-system components, generator parts, frame and arm hardware, batteries and charging equipment, propellers, motors and ESCs, cables, seals, sensors, and body panels across the DJI Agras line. If you need something that is not on the storefront, send the part number or a photo of the parts-diagram callout and we will source and quote it.

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