DJI Agras T20 OEM Flow Meter Module

The DJI Agras T20 OEM Flow Meter Module is the measuring unit in the T20 liquid spray system. It is a black, rectangular body closed by a lid that is screwed down along one long edge, with a round sealed fitting on top and four threaded, barbed outlets in a row underneath. Spray liquid passes through it on its way out to the spray lines, and the module measures that flow so the aircraft knows how much liquid it is actually applying. It does not pump, open, close or atomise anything; it measures. It belongs to the spray system, it is identified for the DJI Agras T20, and it is a different body from the T30 flow meter and from the T20 water pump. Operators usually find it while searching for a T20 flowmeter assembly, a T20 flow meter module, a T20 flow reading that will not match what leaves the nozzles, or a T20 flow meter leak. 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 T20 Compatibility Guarantee

• 🇺🇸 USA Compatibility Guarantee
• 👍🏻 Satisfaction Guarantee
• 💵 Money Back Guarantee
• 📦 Same Day Shipping & Tracking
• Identified for the DJI Agras T20 liquid spray system
• Matched by body shape, lid and screw line, the sealed top fitting and the four barbed outlets against the module you removed
• Genuine DJI OEM spray system component, brand new, one flow meter module

Several Agras aircraft carry a part called a flow meter, and they are not the same body. If you want the match confirmed, photograph the removed module from below with all of its outlets in view, and from the side showing the lid and the top fitting, and send them to us — we will match it for you.

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📦 Package Includes

• 1 × Flow Meter Module — black rectangular body with a screwed lid along one edge, a round sealed fitting on top and four threaded barbed outlets underneath

This is the flow meter module alone. It is one assembled measuring unit, not a spray kit and not a pump.

Not included: the spray hoses that push onto the outlets, any hose clamps, the water pump, the spray tank, nozzles, solenoid valves, mounting screws or brackets, and any signal lead that is not part of the module itself.

Nothing is included because it appears near the module on the aircraft. If a clamp, bracket or hose on your aircraft is damaged, tell us which one and we will help you identify it.

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🔧 Component Overview

The flow meter module sits in the liquid path of the T20 spray system, between the supply side and the spray lines. Liquid enters, passes through the measuring body, and leaves through the outlets toward the spray lines. As it does, the module reports how much is moving.

Looking at the module, there are four working areas:

• The rectangular body — a black, box-shaped housing that holds the measuring element and the liquid passages
• The lid and screw line — a lid fastened along one long edge by a row of screws, which closes and seals the body
• The sealed top fitting — a round, sealed fitting standing up from the top of the body
• The four barbed outlets — four threaded fittings in a row underneath, each with a barbed tip for a hose to push onto

The outlet count and the lidded body are what identify it. A flow meter from another Agras aircraft does the same kind of job in a different body, with different ports in different places, and it will not take the T20's hose layout.

Over a working season the module sees:

• Every litre of spray liquid that leaves the tank on its way to the spray lines
• Chemical formulations that can leave residue inside the passages if the system is not flushed
• Pressure from the pump on every spraying run
• Hoses pushed on and pulled off the barbed outlets during service
• Vibration through the airframe on every flight
• Wash water and sun on the trailer between jobs

Modules in this position usually come out for one of four reasons: residue that has built up inside and upset the measurement, a cracked or broken barbed outlet after a hose was levered off, a lid seal that weeps along the screw line, or a damaged top fitting. The flow reading is often the first sign; a wet streak on the body is the second.

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⚙️ Functional Purpose

The module's engineering role is measurement. It lets the aircraft compare the liquid it is asked to apply with the liquid that is actually moving, which is what the spray system relies on to hold an application rate.

In the spray system it:

• Carries the spray liquid through its body on the way to the spray lines
• Measures the flow passing through it and reports it to the aircraft
• Divides that flow out through its four barbed outlets toward the spray lines
• Holds a sealed liquid path, so that what it measures is what reaches the spray lines

What it does not do matters as much:

• It does not pump; the T20 water pump moves the liquid, and the module only measures it
• It does not open or close the flow; that is valve work
• It does not atomise or spray; the nozzles do that
• It does not filter the liquid; a clogged strainer upstream starves it like anything else
• It is not the T30 flow meter, which is a different body with different fittings and its own signal lead

That division of labour is why a flow problem on the T20 has several possible owners, and why a module that measures correctly is sometimes replaced for a fault that belongs to the pump or the lines.

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🔍 Diagnosis — count the outlets before you trust the name

Flow meter is a name, not a part. Several Agras aircraft carry one, they all measure spray flow, and they are all black. The words in the name are the same; the bodies are not. Ordering by the name alone is how the wrong flow meter arrives.

The T20 module identifies itself by its shape. It has a rectangular body, a lid screwed down along one long edge, a round sealed fitting on top, and four threaded barbed outlets in a row underneath. Turn your removed module over and count the outlets. If there are four in a row beneath a lidded body, that is the T20 module. If the fittings sit at the top and bottom of a box with a flanged plate and a lead that ends in a yellow-sealed connector, you are holding a different meter.

The same discipline applies to the fault. A T20 that reports the wrong flow has several suspects, and the module is only one of them.

Signs the module itself is at fault:

• Liquid weeping from the lid seam or around a screw on the lid
• A cracked, split or broken barbed outlet
• A damaged, cracked or loose top fitting
• A flow reading that stays wrong after the lines, strainer and pump have been checked
• Residue that will not flush out of the body
• A flow reading that drops out completely while liquid is clearly reaching the nozzles

Before condemning the module, rule out what imitates it:

• The water pump — a weak pump delivers less liquid, and the module reports exactly that; the reading is right and the pump is wrong
• A blocked strainer or filter — upstream restriction starves the whole system
• A kinked, split or loose hose — a hose that has slipped on an outlet barb leaks after the meter has already counted the liquid
• Clogged nozzles — the flow backs up and the reading falls with it
• The signal connection — a reading that vanishes entirely can be the connection rather than the module

Use the system as your reference. Run a measured volume of clean water through the spray system with the aircraft safely restrained and the propellers removed, and compare what the aircraft reports with what you collect. A reading that matches is a module that is measuring; look elsewhere for the fault. A reading that disagrees after the pump, strainer, hoses and nozzles have been cleared points at the module.

Clear those checks first, while that information is still cheap. If the lid weeps, an outlet is cracked, the top fitting is damaged, or the reading stays wrong with everything around it proven sound, replace the module.

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⚠️ Common Replacement Indicators

Replace the flow meter module when inspection confirms one of these:

• A crack in the body or the lid
• Liquid weeping along the lid screw line that a check of the screws does not stop
• A barbed outlet that is cracked, split, broken off, or has a damaged thread
• A top fitting that is cracked, loose or no longer seals
• Residue or deposits inside that flushing will not remove
• A flow reading that stays wrong after the pump, strainer, hoses and nozzles have been proven sound
• Previous repairs with adhesive or sealant on the body, lid or outlets

Inspect these first, because they produce similar symptoms:

• The T20 water pump
• The strainer or filter on the supply side
• The spray hoses and their fit on each barbed outlet
• The nozzles and their filters
• The signal connection to the module

There is no published service interval for this module. It is replaced when it is damaged or proven faulty, not on a schedule. Flushing the spray system with clean water at the end of each day is what keeps it measuring.

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📐 Specifications

Product name: DJI Agras T20 OEM Flow Meter Module

DJI family: Agras

Aircraft: DJI Agras T20

Fitment basis: Identified for the DJI Agras T20

Aircraft system: Spraying — liquid flow measurement

Component type: Flow meter module (assembled measuring unit)

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

Quantity: 1 module

Form: Rectangular body with a lid screwed down along one long edge, a round sealed fitting on top, and four threaded barbed outlets in a row underneath

Outlets: Four, threaded, with barbed hose tips

Material: Not published for this part

Colour: Black

Dimensions: Not published for this part

Weight: Not published for this part

Flow range: Not published for this part

Electrical: Not published for this part

Mounting position: In the T20 liquid spray path, between the supply side and the spray lines

Installation method: Hoses push onto the barbed outlets; the module is fixed to the aircraft and its connection made as on the removed unit

Hardware included: None — hoses, clamps, screws and brackets are not supplied

Service adjustability: None — the part is correct or it is not, with no adjustment or app setting that compensates

Condition: Brand new

Classification: DJI OEM spray system component

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🛠️ Installation & Maintenance

Before installation

• Power the aircraft down and remove the flight battery
• Empty the spray tank, then flush the spray system with clean water and let it drain
• Wear gloves and eye protection; the passages can hold residue even after flushing
• Photograph the module in place from below and from each side, so every hose and its outlet are on record
• Label each hose with the outlet it came from before you pull anything off
• Lay the new module beside the old one and compare the body, the lid, the top fitting and the four outlets

During installation

• Release any clamps and ease each hose straight off its barb; do not lever against the outlet, which is how barbs crack
• Disconnect the module's connection by its connector body, not by its lead
• Unfasten the module and lift it out without straining the remaining hoses
• Check the hose ends; a hose end that is split or stretched will not seal on a new barb and should be trimmed or replaced
• Fit the new module in the same orientation as the old one
• Push each labelled hose fully onto its own outlet and refit any clamps
• Remake the connection and secure the lead as it was routed before

After installation

• Fill the tank with clean water only and run the spray system with the propellers removed and the aircraft restrained
• Check every outlet, the lid seam and the top fitting for weeping
• Compare the reported flow with a measured volume collected from the nozzles
• Check that the aircraft reports no spray-system fault
• Record the replacement in the maintenance log

Maintenance between jobs. Flush the spray system with clean water at the end of every working day so residue does not settle in the module. Pull hoses straight off the barbs rather than levering them. Each time the module is in view, look along the lid screw line for a wet streak; a lid that has started to weep is far easier to deal with than a module full of dried residue.

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🚜 Necessary For

This module is for operators and technicians restoring accurate flow measurement on the T20:

• DJI Agras T20 operators with a cracked outlet, a weeping lid or a damaged top fitting
• Commercial spray applicators who need the aircraft to hold its application rate across a long day
• Agras service centres and repair technicians rebuilding T20 spray systems
• Fleet managers keeping T20 aircraft in service through the spraying season
• Growers flying their own T20 who have cleared the pump and lines and still see a wrong flow reading

This is not the part you need if:

• Your removed meter is a box with fittings at the top and bottom, a flanged plate and a lead with a yellow-sealed connector — that is the DJI Agras T30 OEM Flow Meter, a different body
• The pump is weak or not running — that is the DJI Agras T20 OEM Water Pump; the module measures flow, it does not make it
• A hose has slipped or split at an outlet but the barb itself is sound — replace or refit the hose
• A nozzle or strainer is clogged — clear it, then check the reading again
• The reading drops out but the module is undamaged and the fault follows the connection — look at the connection first
• You fly a T30, T10, T40, T50 or T25 — this module is identified for the T20 only

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💡 Why This Part Matters

The flow meter module is how the T20 knows what it is putting on the crop. If it measures wrong, every rate the aircraft holds is wrong with it, and a job can be over- or under-applied without the aircraft raising an alarm.

That makes getting the right module as important as getting a working one. The name flow meter appears on more than one Agras aircraft, and the bodies differ. The T20 module is the one with the lidded rectangular body, the sealed top fitting and the four barbed outlets underneath. Counting the outlets on the removed part settles the match in seconds.

It also makes the order of checks matter. A weak pump, a clogged strainer or a slipped hose all change what the module reports, and none of them is cured by a new module. Clear those first. When they are sound and the reading is still wrong, or the module itself is cracked or weeping, this is the part.

The check costs a container and a timer. Collect a measured volume of clean water through the system and compare it with the reported flow. Agreement means the module is doing its job. Disagreement, with everything around it proven, means it is time to replace it.

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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 T20 OEM Flow Meter Module

Brand: DJI

DJI family: Agras

Aircraft: DJI Agras T20

Compatible models: DJI Agras T20

Fitment basis: Identified for the DJI Agras T20

Component: Flow meter module

Aircraft system: Spraying

Installed position: In the liquid spray path between the supply side and the spray lines

Primary function: Measures spray liquid flow and reports it to the aircraft

Form: Black rectangular body, lid screwed along one long edge, round sealed fitting on top, four threaded barbed outlets underneath

Identifying feature: Four barbed outlets in a row beneath a lidded body

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

Quantity supplied: 1 module

Not included: Hoses, clamps, pump, tank, nozzles, valves, screws, brackets

Flow range and electrical ratings: Not published for this part

Key diagnostic: Compare reported flow with a measured volume after clearing pump, strainer, hoses and nozzles

Common failure modes: Residue build-up, cracked barbed outlet, weeping lid seam, damaged top fitting

Service interval: None published; flush the spray system daily

Service adjustability: None

Condition: Brand new

Part classification: DJI OEM spray system component

Also searched as: T20 flowmeter assembly; T20 flow meter module; Agras T20 flowmeter; T20 spray flow sensor; DJI T20 flow meter replacement

Disambiguation: Not the DJI Agras T30 OEM Flow Meter, not the DJI Agras T20 OEM Water Pump, not a valve or nozzle

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 T20 flow meter module? The measuring unit in the T20 liquid spray system. It is a black rectangular body with a screwed lid along one edge, a round sealed fitting on top and four barbed outlets underneath, and it measures the spray liquid passing through it.

Which aircraft does it fit? It is identified for the DJI Agras T20.

Is it the same as the T30 flow meter? No. The DJI Agras T30 OEM Flow Meter is a different body, with fittings at the top and bottom, a flanged plate and its own signal lead. Count the outlets on your removed part; the T20 module has four in a row underneath.

Is it the water pump? No. The DJI Agras T20 OEM Water Pump moves the liquid. This module only measures it.

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 from below and from the side and send it to us if you want that confirmed.

My flow reading is low. Is the meter bad? Not necessarily. A weak pump, a clogged strainer or blocked nozzles all reduce flow, and the meter reports that correctly. Clear those first, then compare the reading with a measured volume of clean water.

The reading looks right but the field is under-applied. Can that be the meter? Check the hoses on the outlets first. A hose that has slipped or split after the meter leaks liquid the meter has already counted.

Liquid is weeping from the lid. Do I need a new module? Check that the lid screws are all present and snug first. If the seam keeps weeping, or the lid or body is cracked, replace the module.

One of the barbed outlets snapped off. Can I repair it? A broken outlet cannot be relied on to seal under pump pressure. Replace the module, and pull hoses straight off in future rather than levering them.

Are hoses and clamps included? No. It is the module alone. Reuse sound hoses and clamps, and trim or replace any hose end that is split or stretched.

Does the module need calibrating after fitting? Follow the aircraft and app procedures for the spray system after any spray-system repair, then confirm the reading with a measured volume of clean water.

What is its flow range? It is not published for this part. The module is matched by its body, lid, top fitting and outlets against the one you removed.

Can I fit it myself? Most operators can. Flush and drain the system, label each hose with its outlet, ease the hoses straight off, fit the new module the same way round, and test with clean water before spraying.

Does it fit the T30 or T40? It is identified for the T20 only. Other Agras aircraft use different flow meters.

How do I make it last? Flush the spray system with clean water at the end of each day, never lever hoses off the barbs, and look along the lid seam for weeping whenever the module is in view.

Is there a service interval? No. Replace it when it is damaged or proven faulty. Daily flushing is the maintenance that matters.