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Don’t let cattle heat stress reduce your herd performance and cost you money. Implement an effective management plan based on objective and accurate THI, HLI and AHLU measurements at the pen level with Kestrel. Rugged hand-held meter can also be mounted with included hardware for longer term monitoring of heat events.

Quick look

  • Measures wind speed, temperature, humidity, globe temperature, THI, HLI, AHLU and much more. Over 20 measurements in all!
  • Handheld, portable, data logger with customizable heat stress zone settings, graphing and measurement statistics.
  • Large, hi-res, hi-contrast, graphic display is perfectly readable in the brightest sunlight and is backlit for nighttime use.

Kestrel 5400AG Cattle Heat Stress Tracker with LiNK + Vane Mount Overview

The Kestrel 5400 Cattle Heat Stress Tracker offers micro-climate measurement and monitoring at the pen or yard location. Contains a built-in Globe Temperature sensor and complete cattle-specific calculations. Measure THI and HLI and track AHLU based on easy-to-input herd and pen parameters. Perform spot checks or mount in place with the included vane mount accessory to track AHLU for months.  LiNK capability allows remote access to current and logged data from your iOS or Android mobile device. Mount a mobile data equipped tablet nearby to send mobile alerts even when you’re not on-site. Designed by Kestrel with input from some of the world’s most respected experts in cattle heat stress, the Kestrel 5400 Cattle Heat Stress Tracker is designed to help you MEASURE and MANAGE your herd’s heat stress, ensuring you MAXIMIZE your bottom line.

  • Heat Load Index (HLI), Temperature-Humidity Index (THI), Accumulated Heat Load Units (AHLU), Wet Bulb Globe Temperature (WBGT), heat index, Delta T, temperature, humidity and much more. 21 measurements in all!
  • Complete weather station capabilities with a comprehensive suite of weather measurements including wind speed, direction, pressure trend, temperature and humidity.
  • Durable, portable, and easy to use data logger with customizable category settings, graphing and measurement statistics.
  • Large, hi-res, hi-contrast, graphic display is perfectly readable in the brightest sunlight and is backlit for use in low-light conditions.
  • LiNK connectivity powered by Bluetooth LE® provides wireless communication to mobile devices and computers.
  • Rugged (drop tested to MIL-STD-810G standards), dust and waterproof (sealed to IP67 standards).
  • Included Kestrel Vane Mount easily attaches to fencing.
  • Protective pouch, neck lanyard and Lithium AA battery included.
  • 5-year warranty.

Environmental Measures

  • Accumulated Heat Load Units (AHLU)
  • Altitude (Barometric)
  • Barometric Pressure
  • Compass Direction
  • Crosswind
  • Delta T
  • Density Altitude
  • Dew Point Temperature
  • Globe Temperature
  • Headwind/Tailwind
  • Heat Load Index (HLI)
  • Heat Stress Index
  • Naturally Aspirated Wet Bulb Temperature
  • Relative Humidity
  • Station Pressure (Absolute Pressure)
  • Temperature Humidity Index (THI)
  • Temperature
  • Thermal Work Limit (TWL)
  • Wet Bulb Globe Temperature (WBGT)
  • Wet Bulb Temperature (Psychrometric)
  • Wind Chill
  • Wind Speed/Air Speed

Features

  • Backlight - Switchable White/Red
  • Battery Life Indicator
  • Black Globe Temperature Sensor (1in/2.5cm)
  • Data Log Graph View
  • Data Logging - Adjustable Interval
  • Date & Time
  • Drop-Tested to MIL-STD-810G
  • Integrated Flip Open Impeller Cover
  • Intuitive Tactile Up/Down/Enter Keypad
  • LiNK Wireless Communication - When Option Selected (Bluetooth low energy)*
  • Multilingual Menus (English, French, Spanish, German)
  • Minimum/Maximum/Average Reading
  • Pressure Sensor
  • Relative Humidity Sensor
  • Temperature Sensor (Patented External Isolated)
  • Waterproof to IP67 (3'/1M for 30 minutes)

Includes

  • Battery - 1 x AA
  • Certificate Of Conformity (Spec Sheet)
  • Instructions
  • Lanyard
  • Protective Drawstring Pouch
  • Tripod Vane Mount
  • Vane Mount Carry Case

Connectivity

Kestrel LiNK for iOS & Android

The Kestrel LiNK® App for iOS/Android allows you to Wirelessly connect with iOS and Android devices and remotely view real-time environmental data and receive alerts for changing conditions. Available for your Kestrel 5 Series Meter or DROP Logger, Kestrel LiNK also provides easy transfer of the Kestrel’s stored data log, a clear graph of all historical data. Alerts can be customized based on temperature, heat index, wind, or other measurements. LiNK enables easy firmware updates of Kestrel 5 series meters.

Data is transmitted wirelessly via Bluetooth® Low Energy within wireless range (100’ line of sight– reduced by walls and obstructions). Mobile device and Kestrel must remain within range to trigger alerts.

Models & SKUs:

  • Kestrel 5400 Cattle Heat Stress Tracker: 0854AGLVCHVG

Shipping is fast and FREE across the USA. For more details about shipping see the full shipping page here.

We offer 30 Day Easy Returns. If you decide you don't need a product we'll take it back so long as it is in original and re-saleable condition. See the full details here.

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