About the Kestrel 5000AG Agriculture Environmental Meter

A must-have tool for livestock producers, veterinarians and handlers.

Pocket-sized, rugged, accurate meter for assessing ventilation effectiveness, barn conditions, livestock heat stress, air speed, field microclimates, storage conditions, transportation safety, and more.

The Kestrel 5000AG is designed to meet the needs of livestock, agriculture and animal health professionals. Producers, growers, veterinarians, and consultants in every field of agriculture will gain vital information regarding micro-climate conditions needed to maximize performance and profitability. This lightweight, handheld, multi-function meter can be used inside and out for spot measurement of current conditions and also tracks and logs over 10,000 sets of time-stamped data. Clip the Kestrel 5000AG into the custom Kestrel 5 Series Rotating Vane Mount and you have a sturdy weather station that can be left in place for days or weeks.

Heat Stress Management with THI

THI, (Temperature-Humidity Index)  has been used for decades as a measure to classify heat stress risk in many livestock production and transportation operations. This measurement includes both temperature and relative humidity and is a basis for both strategic and tactical management practices which benefit animal health, productivity and well-being. The Kestrel 5000AG calculates and logs on-site THI based on user selection of either the NRC(National Research Council, 1971) or Yousef (Yousef, 1985) accepted THI calculations. Objective and accurate site-specific measurements are critical to ensuring a heat stress management strategy that is cost effective; and they're at your fingertips with the 5000AG.

Barn / Housing Ventilation Assessments:

Regardless of the type of barn/house design all livestock require proper ventilation and air movement to maximize health, growth, and comfort.  The Kestrel 5000AG provides air speed and air flow measurements to quickly quantify air movement in the vicinity of livestock, locate drafts, measure fan effectiveness and confirm duct discharge velocity. Volume air flow takes duct shape and dimensions into account and allows for accurate comparison of various locations in a system. No calculator is needed to determine airflow with the Kestrel 5000AG – a few quick menu picks and built-in averaging gives you accurate readings instantly.

Microclimate, Harvest and Storage Conditions:

Many livestock professionals also grow and store grains, hay and other feedstuffs. The Kestrel 5000AG can measure micro-climates around the farm to determine where mold and disease may be a problem, ensuring conditions are right for harvesting, drying, and storage. Leave the Kestrel 5000AG in place anywhere in th field, barn or greenhouse to get a graphical history of overnight conditions, (the Kestrel 5 Series Rotating Vane Mount and a ¼-20 camera clamp or tripod makes it easy).

Choose Kestrel LiNK Option to Add the Power of:

LiNK is Kestrel’s wireless data communication system, powered by Bluetooth® low energy. Choose the Kestrel 5000AG with LiNK option and you get full iOS, Android, PC and Mac app support.  See real-time readings on your phone or tablet on a customizable dashboard up to 100’ away (line of sight). Download stored data from your Kestrel to save or share it. Plus, you can update the firmware on your Kestrel when improvements are released.

Simple communication to Windows and Mac computers is provided through the optional LiNK USB Dongle or USB Data Transfer Cable. Download your data to view, analyze and archive.  Enables firmware update of Kestrel 5 series meters.

Note:  Bluetooth® low energy is built into all recent iOS and Android devices. PC and Mac connectivity require purchase of a Kestrel LiNK USB Dongle. Non-LiNK units can be connected to PC’s and Mac’s, but NOT phones and tablets, using the Kestrel USB Data Cable.

Kestrels have been put to the test in some of the harshest conditions on the planet. U.S. Special Forces, combat weather teams, wildland firefighters, smoke jumpers, Mt. Everest expeditions and auto pit crews are just a few who rely on a Kestrel to provide them with the crucial environmental data they need. Veterinarians have been purchasing Kestrel meters for years, knowing they will provide the readings they need immediately and reliably. Farmers know a Kestrel meter can help them avoid property damage, reduce livestock losses, and maximize productivity. Shouldn’t YOU be working with Kestrel?

    Features
    • Rugged (drop tested to MIL-STD-810G standards – 10 drops from 4’).
    • Waterproof and dustproof (sealed to IP67 standards – 30’ submersion to 3’).
    • Small – carry in your pocket or store in your glove box.
    • High visibility case to avoid loss.
    • Large, hi-res, hi-contrast, graphic display is perfectly readable in the brightest sunlight and is backlit for use in low-light conditions.
    • Airflow impeller can be field-replaced without tools if damaged – patented!
    • Protective pouch, neck lanyard and Lithium AA battery included.
    • 5-year warranty.
    • Handheld, portable, data logger with on-screen graphing and measurement statistics.
    • Optional LiNK connectivity powered by Bluetooth® low energy provides wireless communication to mobile devices and computers.
    • Kestrel COC regarding accuracy of measurements
    Measures
    • Air Flow (CFM)
    • Wind Speed
    • Current Wind Speed
    • Average Wind Speed
    • Maximum Wind Gust
    • Temperature
    • Barometric Pressure
    • Relative Humidity
    • Heat Stress Index
    • Wind Chill
    • Dew Point Temperature
    • Altitude (Barometric)
    • Density Altitude
    • Wet Bulb Temperature (Psychrometric)
    • Volume Air Flow
    • Temperature-Humidity Index (THI)
    • Bluetooth (LiNK model)
    What else is included?
    • (1) AA Lithium Battery
    • Instructions
    • Protective Draw String Pouch
    • Lanyard
    • Certificate Of Conformity (Spec Sheet)
    Downloads | Manuals | Specifications

    FAQs

    What makes Kestrel meters different from other weather instruments?

    Kestrel meters combine rugged durability, precision engineering, and field-proven reliability in a compact design. Built for professional use in harsh environments, they deliver accurate real-time data for weather monitoring, environmental research, and outdoor operations. Unlike consumer-grade instruments, Kestrel meters are engineered to withstand extreme conditions while maintaining measurement accuracy that professionals depend on. Kestrel instruments are trusted by meteorologists, researchers, outdoor enthusiasts, and industrial teams worldwide for their consistent performance and dependable results in the field.

    What warranty coverage do your Kestrel Instruments include, and what is not covered?

    Kestrel Instruments include a full 5-year limited lifetime warranty against defects in materials and workmanship under normal use. Coverage includes the meter body, display, and internal components. The warranty does not cover damage from misuse, neglect, unauthorized repair, water immersion beyond rated specifications, battery leakage, or wear from normal operation. Accidental drops, extreme temperature exposure, and chemical exposure are also excluded. For specific coverage details and warranty registration, please contact our support team or consult your product documentation.

    What makes Kestrel meters suitable for professional field work?

    Kestrel meters are engineered for demanding field conditions with rugged construction, precision sensors, and reliable performance in extreme environments. Built to withstand harsh weather, dust, and impact, they deliver accurate environmental data in real-time—whether you're monitoring livestock conditions, conducting agricultural research, or managing outdoor operations. Their compact design, intuitive interface, and long battery life make them practical tools for professionals who need dependable measurements without compromise.

    What is your shipping policy?

    We offer worldwide shipping with competitive rates calculated at checkout. Orders typically ship within 1-2 business days. Domestic US orders arrive in 3-7 business days via standard carriers; international delivery times vary by destination, typically 7-21 business days. All orders include tracking information. We partner with UPS, FedEx, and USPS to ensure reliable delivery of your precision instruments. For expedited options or specific shipping questions, contact our support team see our estimated delivery dates offered at checkout for each shipping selection.

    Who manufactures Kestrel Instruments products and what is your company background?

    Kestrel Instruments are manufactured by Nielsen-Kellerman, a leader in precision environmental measurement based in Pennsylvania, USA. Our partnership combines Nielsen-Kellerman's 40+ years of engineering expertise with Extreme Meters' commitment to delivering rugged, field-tested instruments to professionals worldwide. Together, we ensure every meter meets the highest standards for accuracy and durability.

    What is your return policy?

    We offer a 45-day return window from the date of purchase. Items must be unused, in original packaging, and in resalable condition. Return shipping is the customer's responsibility unless the item arrived damaged or defective. Once we receive and inspect your return, refunds are processed within 5-7 business days. For international orders, please contact our support team to discuss return options, as duties and shipping costs may apply. Damaged or defective items are eligible for replacement or full refund at no cost.

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    Designed and Built in the USA. Kestrel Instruments are known for their accuracy, toughness, and reliability in the field. Trusted by professionals worldwide for precision weather measurement and environmental data logging.