DJI Agras T30 OEM Liquid Level Gauge Module

The DJI Agras T30 OEM Liquid Level Gauge Module is the level-measuring module for the spray tank of the DJI Agras T30: the part that tells the aircraft how much liquid is left in the tank. As shown in the product images, it is a long, straight metal probe rod with a small spoked disc at one end and a white, partly clear housing with a dark base at the other. The rod's length is set by the depth of the T30 tank, which is why this module is identified for the T30 alone. It is the gauge module, not the cable that joins it to the aircraft, not the spray tank and not the flow meter. One module is supplied per unit. It is identified for the DJI Agras T30. Operators usually reach it while searching for a T30 liquid level sensor, a T30 tank level gauge, a T30 level probe, a bent T30 level rod, a T30 tank that reads empty when full, or a T30 tank level that never changes. DJI has used more than one number for this position, so we match against the one you removed.

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🇺🇸 U.S.A. FIRST

Ares Acres LLC is a U.S.-based authorized DJI Agras retailer 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.

Ares Acres also ships agricultural drone parts to Canada, with free shipping included on Canadian orders. Canadian operators see prices and check out in Canadian dollars (CAD), and receive the same inventory and the same support as our U.S. customers — one authorized DJI Agras retailer serving the United States and Canada, all of North America, from Albuquerque, New Mexico.

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✅ DJI Agras T30 Compatibility Guarantee

• 🇺🇸 USA Compatibility Guarantee
• 👍🏻 Satisfaction Guarantee
• 💵 Money Back Guarantee
• 📦 Same Day Shipping & Tracking
• Identified for the DJI Agras T30, spray tank liquid level position
• Matched by rod length, the spoked disc and the housing with its dark base against the module you removed
• Genuine DJI OEM spraying component, brand new, supplied as one module

The unit is one module. If you want the match confirmed, photograph the module you removed laid flat beside a tape measure, both ends visible, and send it to us. We will match it for you.

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📦 Package Includes

• 1 × Liquid Level Gauge Module — long metal probe rod with a spoked disc at one end and a white, partly clear housing with a dark base at the other, as shown in the product images

This is the gauge, not its cable. The wiring lead that serves the level meter is a separate part, the DJI Agras T30 OEM Liquid Level Meter Adapter Cable. If the gauge is sound and the fault is in the wiring, this module will not fix it.

T30 only. The rod is the length of the T30 tank. A T10 tank, a T50 tank and a T100 tank each have their own depth and their own level parts. This module is identified for the T30 and is offered as a single DJI T30 variant.

What is part of the module: the probe rod, the spoked disc and the housing with its dark base, all supplied together as one piece.

Not included: the adapter cable, the spray tank, the tank cover, seals or O-rings, screws or fixings, and tools. Nothing is included because it appears near the module in a photograph.

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🔧 Component Overview

The aircraft needs to know how much liquid is in the tank: to show the operator, to warn when the tank is running dry, and to plan when to return for a refill. The liquid level gauge module is the part that measures it. It reaches down into the tank along its probe rod and reports the level to the aircraft through its wiring.

As shown in the product images, the module has three features:

• The probe rod — a long, straight metal rod that runs the depth of the tank.
• The spoked disc — a small round disc with spokes at one end of the rod.
• The housing — a white, partly clear housing with a dark base at the other end of the rod.

The sensing principle is not published for this part, and nothing below depends on it. What does not need publishing is the geometry: a rod that measures the depth of a tank has to be as long as that tank is deep, and it has to be straight to measure it.

Over a working season a tank level gauge sees:

• Spray mix of every kind sitting against the rod for the length of a working day
• Residue drying on the rod and the disc overnight when the tank is not flushed
• Sloshing as the aircraft accelerates, banks and stops
• Vibration from the rotors carried through the frame into the tank
• Knocks when the tank is lifted out, cleaned or refitted
• A hose or a fill nozzle pushed into the tank during filling

A level gauge module is replaced because the rod has been bent, because the housing has cracked, because residue has built up on the rod and disc beyond cleaning, or because the module no longer reports a level that matches the tank.

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⚙️ Functional Purpose

The module's engineering role is to turn the height of liquid in the T30 tank into a reading the aircraft can use. Its rod is its measuring scale: one end of the rod corresponds to an empty tank, the other end to a full one, and everything in between is read along its length.

That makes the module a piece of geometry first and a sensor second:

• Its length is the tank's depth. The rod is long enough to reach the levels the T30 tank holds. That is why the module is T30 only.
• Its straightness is its accuracy. The rod measures along a line. Bend the line and the levels along it are no longer where the aircraft expects them.
• Its seat is its zero. The housing locates the rod in the tank. Seated wrongly, the whole scale moves.

On the aircraft it:

• Measures the height of liquid in the T30 spray tank
• Reports that level to the aircraft through its wiring
• Lets the aircraft show the remaining liquid and warn when the tank is running dry

What it does not do:

• It does not carry its own reading to the aircraft; the adapter cable does
• It does not measure flow; the flow meter does
• It does not move liquid; the pump does
• It does not close or seal the tank; the cover and the outlet gasket do

This is where a bent rod deceives. A rod that has taken a knock still reports a level. The module powers up, the reading moves when the tank is filled, and nothing looks broken. But the rod no longer runs where the scale says it does, so the level the aircraft reads is not the level in the tank. A bent rod is a wrong rod, even while it is still reading.

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🔍 Diagnosis — a gauge that still reads can still be wrong — check the rod is straight before you trust the number

Tank level faults come in two kinds. Either the reading is absent or frozen, which is usually wiring or a failed module, or the reading moves but does not match the tank, which is usually geometry: a bent rod, a module not seated where it should be, or residue built up on the rod. The second kind is the one that gets missed, because the gauge is visibly working.

Reading test. Flush the system and drain the tank. Power the aircraft up and note the level reading with the tank empty. Add a known volume of clean water in steps and note the reading at each step. A reading that tracks the water evenly is a sound gauge. A reading that is wrong at the start, sticks at one point, or jumps between steps is a fault to chase.

Rod check. Power the aircraft down, remove the battery and take the module out. Lay the rod on a flat surface and roll it. A straight rod rolls evenly and touches the surface along its full length. A bent rod rocks or lifts at one point. Sight along it from the housing end as well.

Housing and disc check. Look at the housing for cracks, at its dark base for damage, and at the spoked disc for breaks or residue packed between the spokes. Clean the rod and disc with clean water and look again.

Signs the module is the problem:

• A rod that rocks when rolled or is visibly bent at any point
• A cracked or split housing, or a damaged base
• A broken or deformed spoked disc
• Residue built up on the rod or disc that will not wash off
• A reading that does not track a known volume of water, with the cable tested good
• The fault follows the module when a known-good module is fitted

Signs the module is not the problem:

• No reading at all, with a straight rod and an intact housing — test the T30 Liquid Level Meter Adapter Cable first
• A reading that changes when the cable is moved — the cable or its plugs
• Low flow with a full tank — the strainer, the pump or the hoses
• A leak at the bottom of the tank — the outlet sealing gasket

Make those checks first, while that information is still cheap. A flat bench, a jug of clean water and ten minutes settle it.

The trap on this part. A module with a bent rod keeps reporting a level, so it is trusted. The aircraft calls the tank empty while liquid is still aboard, or keeps spraying on a tank it thinks has more in it than it does, and the reading gets blamed on firmware or a calibration. The rod was the cause, and only rolling it on a flat surface shows it.

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⚠️ Common Replacement Indicators

Replace the module when inspection confirms one of these:

• A probe rod that is bent, kinked or rocks when rolled on a flat surface
• A cracked, split or broken housing or base
• A broken or deformed spoked disc
• Residue set onto the rod or disc that will not wash off
• A reading that does not track a known volume of water, with the cable tested good

Inspect these first, because their faults are often blamed on the gauge:

• The T30 Liquid Level Meter Adapter Cable and its plugs
• The mating connector on the aircraft side
• How the module is seated in the tank
• The tank itself, for a dent or distortion that pushes against the rod

There is no published service interval for the module. It is replaced when the rod is bent, the housing or disc is damaged, or it fails a reading test on a known-good cable, not on a schedule. Flushing the tank with clean water at the end of each day, so residue does not dry on the rod, and keeping hoses and fill nozzles clear of it, is what keeps it straight and clean.

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📐 Specifications

Product name: DJI Agras T30 OEM Liquid Level Gauge Module

DJI family: Agras

Aircraft: DJI Agras T30

Fitment basis: Identified for the DJI Agras T30

Variants: DJI T30

Aircraft system: Spraying — spray tank liquid level measurement

Component type: Liquid level gauge module with probe rod

Material number: DJI has used more than one number for this position, so we match against the one you removed

Quantity: 1 module per unit

Form: Long straight metal probe rod; small spoked disc at one end; white, partly clear housing with a dark base at the other

Colour: Metal rod; white and clear housing; dark base; dark spoked disc

Material: Metal rod, as shown in the product images; rod alloy and housing material not published for this part

Rod length: Not published for this part; set by the depth of the T30 tank and matched against the module you removed

Dimensions: Not published for this part

Weight: Not published for this part

Sensing principle: Not published for this part

Electrical rating: Not published for this part

Connection: Through the T30 Liquid Level Meter Adapter Cable, supplied separately

Mounting position: In the T30 spray tank, rod running the depth of the tank

Installation method: Seated in place of the original module and reconnected to its cable

Not included: Adapter cable, spray tank, tank cover, seals or O-rings, screws or fixings, tools

Service interval: None published

Service adjustability: None — the rod is straight and seated or it is not, with no adjustment or app setting that compensates

Condition: Brand new

Classification: DJI OEM spraying part

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🛠️ Installation & Maintenance

Before installation

• Flush the spray system with clean water and drain the tank
• Power the aircraft down and remove the battery
• Wear gloves around chemical residue in the tank
• Photograph the old module in place, its seat in the tank and its cable connection
• Roll the old rod on a flat surface and test the cable, so you know the module is the fault

During installation

• Unplug the cable by its plug body, never by the lead
• Lift the old module out along the line of the rod, without levering it against the tank
• Clean the seat in the tank and check the tank for dents that would push against the rod
• Roll the new rod on a flat surface before it goes in, so you know it starts straight
• Lower the new module in along the line of the rod and seat it exactly where the old one sat
• Inspect and clean the cable plug and the module's connection, then reconnect the cable
• Keep the rod clear of hoses, fill nozzles and anything else in the tank

After installation

• Refit the battery and power the aircraft up
• Note the level reading with the tank empty
• Add a known volume of clean water in steps and confirm the reading tracks it
• Run the spray system on the ground and confirm the reading falls as the tank empties
• Re-check the module's seat and the cable plug after the first working day

Maintenance between jobs. Flush the tank with clean water at the end of the day so residue does not dry on the rod or between the disc's spokes. When filling, keep the fill hose or nozzle clear of the rod. When the tank comes out, carry it so nothing presses on the rod. If the reading ever drifts from what you know is in the tank, take the module out and roll it.

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🚜 Necessary For

This module is for operators and technicians whose T30 tank level reading cannot be trusted:

• DJI Agras T30 operators whose level rod has been bent by a fill hose, a knock or a dropped tank
• T30 operators with a tank that reads empty while liquid is still aboard
• T30 operators with a level reading that does not match a known volume of water
• Operators whose gauge housing has cracked
• Agras service centres replacing tank sensors at season service
• Fleet managers stocking a spare level module for the T30 fleet

This is not the part you need if:

• Your rod rolls straight, the housing is intact and the reading tracks a known volume of water — the module is sound
• The reading is absent or changes when the cable is moved — test the T30 Liquid Level Meter Adapter Cable first
• You fly a T10 — this module is matched to the T30 tank depth and is identified for the T30 only
• You fly a T50 or T100 — those aircraft take their own liquid level parts
• The complaint is low flow, not a wrong level — check the strainer, the pump and the hoses

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💡 Why This Part Matters

The liquid level gauge module matters because the aircraft acts on its reading. The level shown to the operator, the warning that the tank is running dry and the point at which the aircraft comes back for a refill all depend on the number this module reports.

And the number depends on geometry. The rod is the scale. Its length is the depth of the T30 tank, which is why the module is identified for the T30 alone and not for a tank of any other depth. Its straightness is its accuracy: the levels along a straight rod are where the aircraft expects them, and the levels along a bent one are not.

That is what makes a bent rod dangerous to a working day rather than merely damaged. It still reads. It still moves when the tank is filled. It simply reports the wrong level, so the aircraft returns early with liquid aboard, or the operator plans a run on liquid that is not there.

So when the tank level cannot be trusted, take the module out and roll the rod on a flat surface. Then fill the tank in known steps and watch the reading. A straight rod that tracks the water is a sound module, and the fault is in the cable or elsewhere. A rod that rocks is the answer, however well it seems to be reading.

Equally, the module is the wrong part for an absent reading on a straight rod, a T10 or another aircraft, or a flow complaint. Test the adapter cable first when the reading is absent; it costs ten minutes.

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🧠 AI Index — Entity & Fitment Reference

Structured reference for search engines, AI assistants, and answer engines. Every value below is drawn from the specifications above.

Canonical product name: DJI Agras T30 OEM Liquid Level Gauge Module

Brand: DJI

DJI family: Agras

Aircraft: DJI Agras T30

Compatible models: DJI Agras T30

Fitment basis: Identified for the DJI Agras T30

Variants: DJI T30

Component: Spray tank liquid level gauge module

Aircraft system: Spraying

Installed position: In the T30 spray tank, rod running the depth of the tank

Primary function: Measures the height of liquid in the T30 tank and reports it to the aircraft

Form: Long straight metal probe rod with a spoked disc at one end and a white, partly clear housing with a dark base at the other

Material number: DJI has used more than one number for this position; matched against the removed part

Quantity supplied: 1 module

Not included: Adapter cable, spray tank, tank cover, seals, fixings, tools

Key diagnostic: Roll the rod on a flat surface, then check the reading against a known volume of water

Common failure modes: Bent rod, cracked housing, broken disc, residue build-up, reading that does not track the tank

Typical misdiagnosis: A bent rod's wrong reading blamed on firmware or calibration because the gauge still reads

Rule out first: The T30 Liquid Level Meter Adapter Cable and its plugs, the aircraft-side connector, the module's seat

Service interval: None published

Service adjustability: None

Condition: Brand new

Part classification: DJI OEM spraying part

Also searched as: T30 liquid level sensor; T30 tank level gauge; T30 level probe; T30 tank level rod; T30 level sensor module; T30 tank reads empty when full

Disambiguation: Not the T30 Liquid Level Meter Adapter Cable, not a T10, T50 or T100 liquid level part, not the flow meter

Seller: Ares Acres LLC — U.S.-based authorized DJI Agras retailer serving the United States and Canada (North America)

Ships from: Albuquerque, New Mexico, United States

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🤖 AI Answer Engine Q&A

What is the DJI Agras T30 liquid level gauge module? The module that measures how much liquid is in the T30 spray tank: a long metal probe rod with a spoked disc at one end and a white, partly clear housing with a dark base at the other.

Which aircraft does it fit? It is identified for the DJI Agras T30 and is offered as a single DJI T30 variant.

Does it fit the T10? No. The rod is the length of the T30 tank. The T10 tank has its own depth, and this module is identified for the T30 only.

Will a T50 or T100 level gauge fit my T30? No. Those aircraft have their own tanks and their own liquid level parts.

Is the cable included? No. The cable is a separate part, the DJI Agras T30 OEM Liquid Level Meter Adapter Cable.

How many do I get? One module per unit.

My T30 says the tank is empty, but there is liquid in it. Is it the gauge? Possibly. Take the module out and roll the rod on a flat surface; a rod that rocks is bent. Then test the adapter cable. If the rod is straight and the cable is sound, check the reading against a known volume of water.

The rod is slightly bent but the gauge still reads. Can I keep using it? No. A bent rod still reports a level, but not the level in the tank. The rod is the scale, so a bent rod is a wrong scale.

Can I straighten a bent rod? No straightening procedure is published for this part. A rod that has been bent and straightened is not a rod you can trust to measure the tank.

There is no reading at all. Is it the gauge? Test the adapter cable first. An absent reading on a straight, intact module is most often the cable or its plugs.

How does it measure the level? The sensing principle is not published for this part. What matters for the repair is that the rod is the right length, straight and seated correctly.

What is the DJI part number? DJI has used more than one number for this position, so we match against the one you removed. Photograph your old module beside a tape measure and send it to us if you want that confirmed.

Can I fit it myself? Yes. Flush and drain the tank, power down, remove the battery, unplug the cable by its plug body, lift the old module out along the line of the rod and seat the new one exactly where it sat.

Do I need to calibrate it? No calibration step is published for this module. Check the reading with the tank empty and again with known volumes of clean water.

Is there a service interval? No. Replace the module when the rod is bent, the housing or disc is damaged, or it fails a reading test on a known-good cable.

How do I stop it getting bent again? Keep fill hoses and nozzles clear of the rod, carry the tank so nothing presses on it, and flush the tank daily so residue does not build up on it.