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Kestrel 5500AG Agriculture Weather Meter

by Kestrel
Original price $461.00 USD - Original price $548.00 USD
Original price $461.00 USD
$369.00 USD
$369.00 USD - $439.00 USD
Current price $369.00 USD
In stock
In stock

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The Kestrel 5500AG Agriculture Weather Meter Measures

  • Air Flow (CFM)
  • Altitude (Barometric)
  • Barometric Pressure
  • Compass Direction
  • Crosswind
  • Delta T
  • Density Altitude
  • Dew Point Temperature
  • Headwind/Tailwind
  • Heat Stress Index
  • Relative Humidity
  • Station Pressure (Absolute Pressure)
  • Temperature Humidity Index (THI)
  • Temperature
  • Wet Bulb Temperature (Psychrometric)
  • Wind Chill
  • Wind Direction
  • Wind Speed / Air Speed


5 Year Manufacturer's Warranty

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Accurately monitor environmental conditions to ensure successful agricultural production with the Kestrel 5500AG Agriculture Weather Meter.

The Kestrel 5500AG offers comprehensive condition monitoring and record keeping capabilities for use on the farm, ranch or in the field. This meter enables identification of risk, environmental evaluation, and development of action plans through its measurement of THI, compass direction, and Delta T for pesticide spraying applications.

Log and store data, assess barn/facility conditions, and make spraying decisions with the Kestrel 5500AG Agriculture Weather Meter. Easily carried and waterproof, this lightweight, multi-function meter is your reliable source for environmental data for livestock, crop production, and other activities. Be prepared and informed with this rugged, pocket-size helper.

Securely attach the Kestrel 5500AG to the optional Kestrel 5 Series Rotating Vane Mount and you can deploy a dependable meteorological station for an extended period of time.


Spray Management

The Kestrel 5500AG offers Delta T readings to evaluate adequate spraying conditions and guarantee compliance with regulations. Delta T calculations, based on air temperature and dew point, aid in selecting proper spray nozzles by analyzing the evaporation rate of sprayed substances. Furthermore, the compass points to minimize spray drift.

The Kestrel 5500AG calculates and records instantaneous temperature, direction, and velocity of wind without the need for manual data entry. Agricultural experts can use this device in combination with average wind and peak gust values to ensure optimal conditions for spraying. The use of the included pouch permits convenient transport of the Kestrel for quick deployment before spraying operations.

Heat Stress Management with THI:

For decades, THI(Temperature-Humidity Index) has provided a standard to evaluate heat stress vulnerability in many agricultural activities and transports. This calculation, comprising air temperature and relative humidity, is central to the successful execution of practices that bolster animal welfare, health, and potency. The Kestrel 5500AG applies either the NRC (National Research Council, 1971) or Yousef (Yousef, 1985) validated THI computations, allowing for exact and impartial site measurements required for effective, cost savings heat stress procedures. Access these measurements instantly with the 5500AG.

Barn / Housing Ventilation Assessments:

The Kestrel 5500AG provides precise wind speed and air flow measurements to promptly analyze air circulation in livestock areas, identify draughts, evaluate fan efficiency and affirm duct discharge speed. Volume air flow accounts for duct structure and size and allows for dependable comparison of diverse places in a system. With the Kestrel 5500AG, no calculator is necessary to evaluate airflow - a speedy menu selection and incorporated mean calculation offers accurate results right away.

Utilize the Kestrel 5500AG Agriculture Weather Meter to monitor microclimate, harvest, and storage conditions. 

Agricultural experts can utilize the Kestrel 5500AG to measure environmental conditions around farms and identify areas at risk of mold or disease, facilitating optimal harvesting, drying, and storage of grains, hay, and feedstuffs.

The Kestrel 5500AG can be left in any outdoor location and, with the Kestrel 5 Series Rotating Vane Mount and a ¼-20 camera clamp or tripod, it can provide a graphical history of overnight conditions.

Choose Kestrel LiNK Option to Add the Power of Apps:

LiNK, powered by Bluetooth® low energy, is a wireless data communication system offered by Kestrel. The Kestrel 5500AG with LiNK option provides support for iOS, Android, PC and Mac applications and is capable of displaying real-time readings on a customizable dashboard up to 100 feet away (line of sight). Additionally, users can download stored data from their Kestrel and take advantage of any updates released via firmware updates.

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.


  • Air Flow
  • Wind Speed 
  • Altitude
  • Barometric Pressure
  • Crosswind
  • Delta T
  • Density Altitude
  • Dew Point Temperature
  • Wind / Air Direction
  • Headwind / Tailwind
  • Heat Stress Index
  • Relative Humidity
  • Station Pressure (Absolute Pressure)
  • Temperature
  • THI 
  • Wet Bulb Temperature (Psychrometric)
  • Wind Chill

Who's Using the Kestrel 5500AG Agriculture Weather Meter:  

  • Dairy Producers
  • Crop Growers
  • Crop Sprayers
  • Crop Dusters
  • Poultry Growers
  • Swine Operations
  • Livestock Processors
  • Veterinarians
  • Nutritionists 
  • Ag Consultants
  • Researchers

    Built for Agriculture Use:

    • 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

    This package includes all necessary components to get started. 

    • Neck Lanyard
    • AA Lithium Battery (Average Life 400 Hours)
    • Protective Drawstring Pouch
    • Instruction ManualFive Year WarrantyTips for Taking Accurate Measurements

    All Kestrel Weather & Environmental Meters are designed & manufactured in the U.S.A and are backed by a Manufacturer's 5-year warranty. Using cutting edge innovation and technology, Kestrel Instruments are designed for stability and accuracy in abrupt condition changes. Rugged and durable, Kestrels are drop tested, waterproof and designed to float if dropped in water.

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