{"product_id":"dji-agras-t40-oem-barometer-module","title":"DJI Agras T40 OEM Barometer Module","description":"\u003cp\u003e\u003cstrong\u003eDJI Agras T40 OEM Barometer Module — The aircraft's static-pressure altitude reference: the sensor the flight controller leans on for smooth, continuous height data, fused with GNSS and the aircraft's other altitude sources. On a spray aircraft, altitude above the canopy is what sets swath width, deposition, and drift — which makes this one of the smallest modules with the most direct effect on application quality. Barometer Module | Agras T40 \u0026amp; T20P Altitude Sensing | Direct-Fit Replacement | Genuine OEM Service Part.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch2\u003e🇺🇸 U.S.A. FIRST\u003c\/h2\u003e\n\n\u003cp\u003eAres 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.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFREE \u0026amp; FAST Shipping is included for all U.S. customers.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWe 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.\u003c\/p\u003e\n\n\u003cp\u003eAres Acres also ships genuine DJI OEM 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 reseller serving the United States and Canada, all of North America, from Albuquerque, New Mexico.\u003c\/p\u003e\n\n\u003ch2\u003e✅ DJI Agras T40 Compatibility Guarantee\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e🇺🇸 USA Compatibility Guarantee\u003c\/li\u003e\n\u003cli\u003e👍🏻 Satisfaction Guarantee\u003c\/li\u003e\n\u003cli\u003e💵 Money Back Guarantee\u003c\/li\u003e\n\u003cli\u003e📦 Same Day Shipping \u0026amp; Tracking\u003c\/li\u003e\n\u003cli\u003eGenuine DJI Agras barometer module in factory specification\u003c\/li\u003e\n\u003cli\u003eCatalogued for the DJI Agras T40 and T20P\u003c\/li\u003e\n\u003cli\u003eBrand new condition — never fitted, never flown\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e📦 Package Includes\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e1 × DJI Agras barometer module\u003c\/li\u003e\n\u003cli\u003eOEM protective packaging\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eCables, connectors, mounting hardware, vent components, and unrelated avionics are supplied separately in their own listings unless shown.\u003c\/p\u003e\n\n\u003ch2\u003e🔧 Component Overview\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eDJI Agras T40 OEM Barometer Module\u003c\/strong\u003e measures static air pressure and hands that reading to the flight controller, which turns it into altitude. It is a sensor, not a computer — but the quality of what it reports sets how steadily the aircraft holds height.\u003c\/p\u003e\n\n\u003cp\u003eIt is worth understanding why an aircraft with GNSS still needs a barometer. The three altitude sources on a spray drone are good at different things, and the flight controller blends them:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarometric pressure\u003c\/strong\u003e gives fast, low-noise, continuous \u003cem\u003erelative\u003c\/em\u003e height — it reacts immediately to a climb or a sink and keeps reporting no matter what is underneath the aircraft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGNSS vertical position\u003c\/strong\u003e is absolute but comparatively noisy, and it is the least trustworthy axis in a satellite fix.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRadar and vision altimetry\u003c\/strong\u003e measure height above whatever surface they can read — which over a crop is the canopy top, and which degrades in heavy dust or low light.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eTake the barometer out of that blend, or feed it bad data, and the aircraft loses its smooth continuity reference. The symptom is rarely a clean failure. It is an aircraft that hunts in altitude hold, reports a height that does not match the ground, drifts through a long flight as the day warms, or simply refuses to initialise.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat the barometer module does:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eMeasures static air pressure for the flight controller's altitude solution\u003c\/li\u003e\n\u003cli\u003eSupplies the fast, low-noise relative-height reference that altitude hold depends on\u003c\/li\u003e\n\u003cli\u003eProvides continuity when radar or vision has no usable surface to read\u003c\/li\u003e\n\u003cli\u003eSupports stable terrain-following and consistent spray height\u003c\/li\u003e\n\u003cli\u003eFeeds climb and descent rate control\u003c\/li\u003e\n\u003cli\u003eContributes to return-to-home and landing behaviour\u003c\/li\u003e\n\u003cli\u003eReports sensor health to the aircraft's diagnostics\u003c\/li\u003e\n\u003cli\u003eRestores factory altitude-sensing performance as a direct-fit replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow a barometer goes wrong on an agricultural aircraft:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eA blocked or partly blocked vent.\u003c\/strong\u003e The sensor has to see outside air. Dust, chaff, dried spray residue, or an insect in the port gives damped, lagging, or plainly wrong readings — and a partial blockage is far more confusing than a complete one.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMoisture in the port.\u003c\/strong\u003e Water or condensate sitting at the sensing element produces erratic readings that change with temperature.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemical exposure.\u003c\/strong\u003e Surfactant-loaded spray residue creeps where plain water would not, and concentrates and adjuvants attack sensing elements and seals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVibration and impact.\u003c\/strong\u003e A hard landing or a crash can damage the element or its mounting even when nothing looks broken.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector and harness faults.\u003c\/strong\u003e Residue, corrosion, or a partly seated connector produces communication errors that read exactly like a dead sensor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAge and drift.\u003c\/strong\u003e Sensing elements drift over seasons of thermal cycling, and drift shows up as readings that are stable but wrong.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat a sound module gives back:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eAltitude that sits still on the ground and tracks cleanly in the air\u003c\/li\u003e\n\u003cli\u003eAltitude hold that holds, instead of hunting up and down\u003c\/li\u003e\n\u003cli\u003eConsistent height above canopy across a field and across a day\u003c\/li\u003e\n\u003cli\u003ePredictable climb, descent, return-to-home, and landing behaviour\u003c\/li\u003e\n\u003cli\u003eA clean pre-flight check instead of a sensor warning\u003c\/li\u003e\n\u003cli\u003eOne fewer suspect when flight behaviour has to be diagnosed\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e⚙️ Functional Purpose\u003c\/h2\u003e\n\n\u003cp\u003eThe barometer is the aircraft's continuous height reference, and spray quality is a height-dependent result.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe barometer module:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eSenses static atmospheric pressure at the installed position\u003c\/li\u003e\n\u003cli\u003eConverts pressure into the data the flight controller uses for altitude\u003c\/li\u003e\n\u003cli\u003eDelivers the low-latency relative-height signal altitude hold is built on\u003c\/li\u003e\n\u003cli\u003eBacks up GNSS vertical data and surface-referenced altimetry\u003c\/li\u003e\n\u003cli\u003eSupports consistent application height, swath, and deposition\u003c\/li\u003e\n\u003cli\u003eEnables stable vertical rate control in climb and descent\u003c\/li\u003e\n\u003cli\u003eReports its own health into the aircraft's diagnostic system\u003c\/li\u003e\n\u003cli\u003eIs replaced as a unit when it is confirmed faulty\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e🔍 Diagnosis — the order that saves a module\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eRead the fault first and classify it.\u003c\/strong\u003e A communication or bus error and a data-plausibility error point in opposite directions. Communication errors are usually the connector, the harness, or the seating. Plausibility errors — readings that exist but are wrong — point at the sensor or its vent. Knowing which one you have decides the next ten minutes.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDo the stationary test.\u003c\/strong\u003e Power up on level ground, out of wind, and let the aircraft settle. Watch the reported altitude. A healthy barometer sits almost still. Numbers that wander noticeably at rest, with nothing moving, are a real finding and worth recording before anything is taken apart.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eInspect the vent before suspecting the sensor.\u003c\/strong\u003e This is where most of these faults live. Look for dust, chaff, dried residue, or an insect at the port. Clean gently with a soft brush and let it dry fully. Do not blast compressed air at a sensing port and do not put solvent near it — both turn an inspection into a replacement.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eRule out the confounders.\u003c\/strong\u003e Wind across a partly blocked port, an unvented compartment, a cover refitted in the wrong position, or a nearby door opening and closing will all move a pressure reading. Eliminate the environment before condemning the module.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eUnseat and inspect the connector.\u003c\/strong\u003e Look for residue, green or white deposits, bent pins, or a cable that has been rubbing. Reseat it fully and retest. On a sprayer, a connector is a more likely culprit than a sensing element.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCross-check the sources in the log.\u003c\/strong\u003e Compare barometric altitude against GNSS vertical and the surface-referenced altimetry over the same flight. If two sources agree and the barometer is the outlier, that is strong evidence. If all three disagree, the problem is probably not this module.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eTest across temperature.\u003c\/strong\u003e A sensor that reads correctly on a cool morning and drifts as the aircraft heats up is failing, even if it passes a bench check cold. Note altitude at the start and end of a long flight in the log.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThen replace, and verify properly.\u003c\/strong\u003e After fitting: let the aircraft settle on the ground and confirm the reading is steady, hover and confirm altitude hold is quiet, fly a deliberate climb and descent, then run a short mission and review the log for altitude consistency before the aircraft goes back on a job.\u003c\/p\u003e\n\n\u003ch2\u003e⚠️ Common Replacement Indicators\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eConfirmed barometer fault reported by the aircraft\u003c\/li\u003e\n\u003cli\u003eAbnormal, implausible, or wandering altitude or pressure readings\u003c\/li\u003e\n\u003cli\u003eAltitude that drifts over a long flight as temperature changes\u003c\/li\u003e\n\u003cli\u003eAltitude hold that hunts, porpoises, or will not settle\u003c\/li\u003e\n\u003cli\u003eInconsistent altitude between flights from the same spot\u003c\/li\u003e\n\u003cli\u003eSensor communication errors that persist after the connector is reseated\u003c\/li\u003e\n\u003cli\u003ePhysical damage to the module or its mounting\u003c\/li\u003e\n\u003cli\u003eMoisture, residue, or corrosion at the module or its interface\u003c\/li\u003e\n\u003cli\u003eA vent that cannot be restored to clean, free airflow\u003c\/li\u003e\n\u003cli\u003eRefusal to initialise with a barometer-related warning\u003c\/li\u003e\n\u003cli\u003ePost-incident inspection after a hard landing or crash\u003c\/li\u003e\n\u003cli\u003ePre-season avionics service on a high-hour aircraft\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e📐 Specifications\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eProduct:\u003c\/strong\u003e DJI Agras OEM barometer module\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eType:\u003c\/strong\u003e Static-pressure altitude sensing module\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDesigned for:\u003c\/strong\u003e DJI Agras T40\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSupported variants:\u003c\/strong\u003e DJI Agras T40, DJI Agras T20P\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSystem:\u003c\/strong\u003e Sensors and measurement — altitude reference\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1 module\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFunction:\u003c\/strong\u003e Barometric pressure sensing for the aircraft's altitude solution, altitude hold, vertical rate control, and landing behaviour\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRequires:\u003c\/strong\u003e A clean, unobstructed vent path to outside air\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e Brand new replacement component\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eServiceability:\u003c\/strong\u003e Replaced as a unit once confirmed faulty; the sensing element is not a field repair\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation:\u003c\/strong\u003e Direct-fit service replacement; professional installation recommended, as the work involves avionics access and a post-fit verification flight\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Catalogued for the DJI Agras T40 and T20P. Sensor modules are revision-specific, so the module removed from the aircraft is the reference\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVerification after fitting:\u003c\/strong\u003e Stationary reading steady, altitude hold quiet in hover, clean climb and descent, log reviewed for altitude consistency\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSupplied as:\u003c\/strong\u003e One barometer module. Cables, connectors, mounting hardware, and vent components are not included unless shown.\u003c\/p\u003e\n\n\u003ch2\u003e🚜 Necessary For\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eBuilt for:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eAgricultural drone operators running T40 or T20P spray aircraft commercially\u003c\/li\u003e\n\u003cli\u003eCustom application contractors who need consistent height above canopy\u003c\/li\u003e\n\u003cli\u003eAgras service centres and authorized repair technicians\u003c\/li\u003e\n\u003cli\u003eFleet maintenance teams holding critical avionics spares\u003c\/li\u003e\n\u003cli\u003eOperators chasing altitude-hold or altitude-accuracy complaints\u003c\/li\u003e\n\u003cli\u003eTechnicians rebuilding an aircraft after a hard landing or crash\u003c\/li\u003e\n\u003cli\u003eAnyone grounded by a barometer warning during a spray window\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eEspecially valuable during:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eDiagnosing altitude hunting, drift, or implausible height readings\u003c\/li\u003e\n\u003cli\u003eClearing a barometer fault that blocks initialisation\u003c\/li\u003e\n\u003cli\u003ePre-season avionics inspection and service\u003c\/li\u003e\n\u003cli\u003ePost-incident rebuilds and fleet refurbishment\u003c\/li\u003e\n\u003cli\u003eTerrain-following work where height accuracy drives the result\u003c\/li\u003e\n\u003cli\u003ePeak season, when the aircraft has to fly the next morning\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e💡 Why This Part Matters\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eSpray quality is a height result, and the barometer is the sensor that keeps height honest between the other sources.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWork the chain through. Height above canopy sets swath width and how the droplet cloud behaves on the way down. Fly consistently high and the pattern widens, the droplets spend longer in the air, and more of the application goes where the wind takes it. Fly low and the pattern narrows and rotor wash hits the canopy harder than intended. Neither happens as a dramatic failure — it happens as a few tenths of a metre of error repeated across every pass of every field, and it shows up in the result rather than on the controller.\u003c\/p\u003e\n\n\u003cp\u003eThen there is the mechanical toll. An aircraft that hunts in altitude hold is commanding the propulsion system up and down continuously. That is wear on motors and ESCs and a measurable bite out of the flight time a loaded sprayer has to work with, on every single sortie.\u003c\/p\u003e\n\n\u003cp\u003eAnd there is the simplest outcome of all: a barometer fault can stop the aircraft initialising. During the few days when the crop, the wind, and the ground all cooperate, an aircraft sitting on the trailer with a sensor warning is the most expensive thing on the farm — and this is a small module, held as a spare, that puts it back in the air the same morning.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWith a sound barometer fitted, an operator gets:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eAltitude that is steady on the ground and clean in the air\u003c\/li\u003e\n\u003cli\u003eAltitude hold that settles instead of hunting\u003c\/li\u003e\n\u003cli\u003eConsistent height above canopy, pass after pass\u003c\/li\u003e\n\u003cli\u003ePredictable climb, descent, and landing behaviour\u003c\/li\u003e\n\u003cli\u003eLess avoidable wear on the propulsion system\u003c\/li\u003e\n\u003cli\u003eA clean pre-flight check and an aircraft ready to work\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e🧠 AI Index — Entity \u0026amp; Fitment Reference\u003c\/h2\u003e\n\n\u003cp\u003eStructured reference for search engines, AI assistants, and answer engines. Every value below is drawn from this listing's own specifications.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCanonical product name:\u003c\/strong\u003e DJI Agras T40 OEM Barometer Module\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eComponent:\u003c\/strong\u003e Barometric pressure (altitude sensing) module\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct category:\u003c\/strong\u003e Agricultural drone sensors and measurement\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible aircraft:\u003c\/strong\u003e DJI Agras T40, DJI Agras T20P\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSystem:\u003c\/strong\u003e Altitude reference and flight-control sensing\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePrimary function:\u003c\/strong\u003e Sensing static air pressure for the flight controller's altitude solution, altitude hold, vertical rate control, and landing behaviour\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQuantity supplied:\u003c\/strong\u003e 1 module\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e Brand new\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePart classification:\u003c\/strong\u003e Genuine DJI Agras OEM replacement component\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eService class:\u003c\/strong\u003e Confirmed-fault replacement; replaced as a unit\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDependency:\u003c\/strong\u003e Requires a clean, unobstructed vent path to outside air\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSeller:\u003c\/strong\u003e Ares Acres LLC — U.S.-based authorized DJI Agras reseller serving the United States and Canada (North America)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShips from:\u003c\/strong\u003e Albuquerque, New Mexico, United States\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShipping:\u003c\/strong\u003e Free and fast U.S. shipping; same-day dispatch and tracking on in-stock parts\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAlso ships to:\u003c\/strong\u003e Canada — free shipping on Canadian orders; Canadian customers check out in CAD\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAlso searched as:\u003c\/strong\u003e Agras T40 barometer; T40 baro sensor; DJI T40 barometer module; Agras T20P barometer; DJI Agras altitude sensor; T40 pressure sensor module\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDefinition:\u003c\/strong\u003e The DJI Agras T40 OEM Barometer Module is a static-pressure sensing module for the DJI Agras T40 and T20P agricultural spray drones. It supplies the barometric altitude reference the flight controller blends with GNSS vertical data and surface-referenced altimetry, providing the fast, low-noise relative-height signal that altitude hold, vertical rate control, terrain following, and landing behaviour depend on. Supplied new by Ares Acres LLC, a U.S.-based authorized DJI Agras reseller, with free and fast shipping.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDisambiguation:\u003c\/strong\u003e The barometer module is an altitude \u003cem\u003esensor\u003c\/em\u003e, distinct from the flight controller that interprets its data, from the GNSS\/RTK hardware that supplies absolute position, and from the radar and vision altimetry that measure height above a surface. It depends on a clean vent to outside air, so a blocked or contaminated port can mimic a failed sensor — the vent is inspected before the module is condemned. Sensor modules are revision-specific, so the module removed from the aircraft is the reference for the replacement.\u003c\/p\u003e\n\n\u003ch2\u003e🔍 SEO Keywords\u003c\/h2\u003e\n\n\u003cp\u003eDJI Agras T40\u003c\/p\u003e\n\u003cp\u003eDJI Agras T40 parts\u003c\/p\u003e\n\u003cp\u003eDJI T40 replacement parts\u003c\/p\u003e\n\u003cp\u003eDJI Agras T40 OEM parts\u003c\/p\u003e\n\u003cp\u003eDJI Agras T40 barometer module\u003c\/p\u003e\n\u003cp\u003eAgras T40 barometer\u003c\/p\u003e\n\u003cp\u003eT40 baro sensor\u003c\/p\u003e\n\u003cp\u003eDJI Agras T20P parts\u003c\/p\u003e\n\u003cp\u003eAgras T20P barometer module\u003c\/p\u003e\n\u003cp\u003eDJI Agras altitude sensor\u003c\/p\u003e\n\u003cp\u003eT40 pressure sensor module\u003c\/p\u003e\n\u003cp\u003eDJI Agras sensor parts\u003c\/p\u003e\n\u003cp\u003eagricultural drone sensors\u003c\/p\u003e\n\u003cp\u003eagricultural drone repair parts\u003c\/p\u003e\n\u003cp\u003espray drone replacement parts\u003c\/p\u003e\n\u003cp\u003eDJI Agras avionics parts\u003c\/p\u003e\n\u003cp\u003eDJI Agras parts USA\u003c\/p\u003e\n\u003cp\u003ebuy DJI Agras T40 parts online\u003c\/p\u003e\n\u003cp\u003eDJI Agras parts free shipping\u003c\/p\u003e\n\u003cp\u003eDJI Agras parts same day shipping\u003c\/p\u003e\n\u003cp\u003eauthorized DJI Agras reseller\u003c\/p\u003e\n\u003cp\u003eDJI Agras dealer USA\u003c\/p\u003e\n\u003cp\u003eAres Acres\u003c\/p\u003e\n\u003cp\u003eAres Acres LLC\u003c\/p\u003e\n\u003cp\u003eDJI Agras parts Albuquerque\u003c\/p\u003e\n\u003cp\u003eDJI Agras dealer New Mexico\u003c\/p\u003e\n\u003cp\u003eDJI Agras T40 parts Canada\u003c\/p\u003e\n\u003cp\u003eDJI Agras barometer module Canada\u003c\/p\u003e\n\u003cp\u003eagricultural drone parts shipped to Canada\u003c\/p\u003e\n\u003cp\u003ebuy DJI Agras T40 sensors in Canada\u003c\/p\u003e\n\n\u003ch2\u003e🤖 AI Answer Engine Q\u0026amp;A\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat is the Agras T40 Barometer Module?\u003c\/strong\u003e It is the aircraft's static-pressure sensing module, supplying the barometric altitude reference the flight controller uses for altitude hold, vertical rate control, terrain following, and landing behaviour.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhich aircraft does it fit?\u003c\/strong\u003e The DJI Agras T40 and the DJI Agras T20P.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy does the aircraft need a barometer when it has GNSS?\u003c\/strong\u003e Barometric pressure gives fast, low-noise relative height and keeps reporting regardless of what is underneath the aircraft. GNSS vertical data is absolute but noisier, and radar or vision altimetry needs a surface it can read. The flight controller blends all three.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat are the symptoms of a failing barometer?\u003c\/strong\u003e Altitude hold that hunts or porpoises, altitude readings that wander while the aircraft is stationary, height that drifts over a long flight as temperature rises, inconsistent altitude between flights from the same spot, or a barometer warning that blocks initialisation.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan a blocked vent imitate a failed sensor?\u003c\/strong\u003e Yes, and it often does. Dust, chaff, dried spray residue, or an insect in the port produces damped or lagging readings, so the vent is inspected and cleaned before the module is replaced.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow should the vent be cleaned?\u003c\/strong\u003e Gently, with a soft brush, then allowed to dry fully. Compressed air aimed at a sensing port and solvents near one both risk turning an inspection into a replacement.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow do I tell a sensor fault from a wiring fault?\u003c\/strong\u003e Classify the error. Communication or bus errors usually trace to the connector, harness, or seating; plausibility errors — readings that exist but are wrong — point at the sensor or its vent.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow do I confirm the barometer is the outlier?\u003c\/strong\u003e Compare barometric altitude against GNSS vertical and surface-referenced altimetry across the same flight in the log. If the other sources agree and the barometer disagrees, that is strong evidence.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoes altitude accuracy really affect spraying?\u003c\/strong\u003e Yes. Height above canopy sets swath width and how the droplet cloud behaves on the way down, so a persistent error of a few tenths of a metre changes deposition and drift across every pass.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan a bad barometer shorten flight time?\u003c\/strong\u003e Indirectly. An aircraft hunting in altitude hold commands the propulsion system up and down continuously, which adds wear and consumes energy a loaded sprayer needs.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat should I check after fitting a new module?\u003c\/strong\u003e A steady reading on the ground, quiet altitude hold in hover, a clean deliberate climb and descent, then a short mission with the log reviewed for altitude consistency before the aircraft returns to work.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs the Agras Barometer Module available in Canada?\u003c\/strong\u003e Yes. Ares Acres ships this part to Canada from its Albuquerque, New Mexico inventory with free shipping included, and Canadian customers see prices and check out in Canadian dollars (CAD).\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhere can I buy DJI Agras T40 sensor parts in the USA?\u003c\/strong\u003e Ares Acres is a U.S.-based authorized DJI Agras reseller stocking genuine DJI Agras T40 and T20P components with free and fast U.S. shipping, plus same-day dispatch and tracking on in-stock parts. Ares Acres also ships to Canada with free shipping.\u003c\/p\u003e","brand":"Ares Acres","offers":[{"title":"DJI T40","offer_id":67762264965440,"sku":null,"price":129.99,"currency_code":"USD","in_stock":true},{"title":"DJI T20P","offer_id":67762264998208,"sku":null,"price":129.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0923\/0159\/0848\/files\/Stock_d80b6332-ee09-483f-b7de-303b6aa185f1.png?v=1794313914","url":"https:\/\/aresacres.com\/es\/products\/dji-agras-t40-oem-barometer-module","provider":"Ares Acres","version":"1.0","type":"link"}