Knowledge Base

Manuals and downloads

Manuals and downloads
Kestrel Instruments manuals and downloads

Kestrel 4 Series Instruction Manuals

Instruction Manual Kestrel 4000 Series Weather & Environmental Meters 4000, 4200, 4250, 4300, 4400, 4500 and 4600

Instruction Manual Kestrel Heat Stress Tracker 4400 & 4600

Kestrel Communicator Software Instructions

User Guide for the Ketsrel 4000 Portable Vane Mount


Kestrel 4 Series Instruction Manuals (Ballistics)

Application Instructions Applied Ballistics Profile Loader (Build 050)

Instruction Manual for Kestrel 4500 Shooter's Weather Meter with Applied Ballistics

Instruction Manual for Kestrel 4500 Shooter's Weather Meter with Horus Atrag Ballistics Software

Overview of the setup and use of the Kestrel 4500 Shooter's Weather Meter with Applied Ballistics

Kestrel Companion is a Android app that will communicate with Kestrel 4500 Sportsman and Applied Ballistic Bluetooth units.


Kestrel 4 Series Downloads

Kestrel Horus Help Files - Connecting with Bluetooth and FAQs

Kestrel Communicator Interface Software, v 2.1.1 compatible with ALL Kestrel 4000 series models

Application that allows gun profile transfers for the Kestrel 4500 Horus units.

Prolific USB to serial driver

Updating your Kestrel AB Firmware to 4.93 - Bluetooth and Non Bluetooth models

Use this link to upgrade your Kestrel 4500 Bluetooth Firmware 4.93

Updating your Horus Firmware to 4.93 on K4 Unit - Bluetooth and Non-Bluetooth units

Updating your Kestrel Sportsman with AB Firmware to 4.93 - Bluetooth and Non Bluetooth models

Use this link to upgrade your Kestrel 4500 Firmware 4.93 for Non Bluetooth Units


Kestrel 4 Series Troubleshooting Documents

Connecting my 4000 Series Kestrel Using Bluetooth

FAQ Connecting your Kestrel 4XXX Series to a MAC

FAQ How to update the Kestrel 4500 firmware using the NK Bootloader Program


Kestrel 4 Series Certificates of Comformity

Certificate of Conformity (COC) Kestrel 4400 & 4600

EMC DECLARATION OF CONFORMITY 4000, 4000NV, 4100, 4200, 4250, 4300

EMC DECLARATION OF CONFORMITY 4400, 4400BT

EMC DECLARATION OF CONFORMITY 4500, 4500NV


Support Documents for all Kestrels

Replacing the Kestrel Impeller

Fine Dead Fuel Moisture and Probability of Ignition Tables

... Read more

Kestrel 5 Series Instruction Manuals

User Guide for the Kestrel 5000, 5100 and 5200

Kestrel 5000AG Livestock Environmental Meter & Kestrel 5400AG Cattle Leat Stress Tracker User Guide

Kestrel 5400 Heat Stress Tracker User Guide

Kestrel 5500 Fires Weather Pro & Kestrel 5400 Fire Weather Pro with WBGT User Guide

User Guide for the Kestrel 5500 Weather Meter


Kestrel 5 Series Instruction Manuals (Ballistics)

A 10 step guide to setup your Kestrel to work with your gun.

Kestrel 5700 Ballistics Weather Meter and Kestrel Elite Weather Meters with Applied Ballistics User Guide


Kestrel 5 Series Downloads

American College of Sports Medicine - Acclimatized WBGT Guidelines on Heat illness and what to do

How to Figure out Average Wind Direction with a Kestrel 5000 Series Unit.

The attached links will help with determining average wind direction and the use of a wind rose. The documents would be pertinent to any of the 5500 models, especially important for spray drift and measurements in the protected zones.

Version 1.22

Information about the Kestrel Agricultural Line of weather meters

Kestrel Firmware Version 1.22 Update Installer for OSX

Kestrel Firmware Version 1.22 Update Installer for Windows

Recommended Modifications to Athletic Participation Based on the Heat Index

Recommended Modifications to Athletic Participation Based on the Heat Index Celsius

Korey Stringer Small Price of Survival Article 2016-09 Regarding Heat Stress

Product Safety and Warranty Kestrel 5000 Series

Tips for taking accurate measurements Support tab at www.kestrelinstruments.com

sources of inaccuracy in long-range shooting

wind measurement and long-range shooting, SME NVDOC1403-Wind


Kestrel 5 Series Troubleshooting Documents

Picture showing the places to take measurements for square and rectangular air ducts

How to transfer gun profiles from 4500 series to 5700 series

Tutorial on how to update your Kestrel 5000 series firmware using LiNK for Windows.

Tutorial on how to update your Kestrel 5000 series firmware using LiNK for MAC/OSX

Find answers to common Bluetooth connection issues

Get help connecting my Kestrel 5 series unit to my computer using a bluetooth dongle.


Support Documents for all Kestrels

Replacing the Kestrel Impeller

Fine Dead Fuel Moisture and Probability of Ignition Tables

Kestrel 5 Series Certificates of Comformity

Kestrel 5 Series specification chart

Kestrel 5400 Heat Stress Tracker specification chart

Example of the paperwork after performing a Kestrel Temperature Factory Calibration (not NIST)

Example of the paperwork received when doing a Kestrel Tune-Up

Shows a sample of the paperwork when doing a NIST Wind calibration on a Kestrel

Shows a sample of the paperwork when doing a NIST Globe Temperature calibration on a Kestrel

Shows a sample of the paperwork when doing a NIST Pressure calibration on a Kestrel

Shows a sample of the paperwork when doing a NIST Humidity calibration on a Kestrel

Shows a sample of the paperwork when doing a NIST Temperature calibration on Kestrel

... Read more

Kestrel Basic (1000-3500) Instruction Manuals

User Guide for the Kestrel 1000 , 2000 , 2500 & 2500 NV , 3000 , 3500 & 3500 NV , 3500 DT

User Guide Relative Humidity Calibration Kit 3000, 3500, 4000,4200, 4250,4300, 4400, 4500, 4600 (Not to be used for calibrating Kestrel 5 Series units or Kestrel DROPs)


Kestrel Basic (1000-3500) Troubleshooting Documents

If you are having issues with the Kestrel turning on after changing the battery, please see this document.


Kestrel Basic (1000-3500) Certificates of Comformity

Product Specifications Certificate of Conformity Kestrel Weather Meters Model Numbers 1000-3500

Product Specifications Certificate of Conformity Kestrel Weather Meters Model Numbers 1000-3500 with Serial #’s lower than 2262687.

EMC DECLARATION OF CONFORMITY 2500, 2500NV, 3500, 3500NV

EMC DECLARATION OF CONFORMITY 1000, 2000, 3000


Support Documents for all Kestrels

Replacing the Kestrel Impeller

Fine Dead Fuel Moisture and Probability of Ignition Tables

... Read more

DROP Data Logger Instruction Manuals

Getting Started with Kestrel DROP Wirelss Environmental Data Loggers


DROP Data Logger Certificates of Comformity

Kestrel DROP Wireless Environmental Data Logger specification chart

... Read more

The free Kestrel LiNK Ballistics app is the perfect companion to the Kestrel Sportsman, Kestrel 5700 Ballistics Weather Meter, and Kestrel 5700 Elite Weather Meter with Applied Ballistics. Build and manage your gun/bullet profiles and download them to your Kestrel Ballistics Meter before you set out. At the range or match, secure your Kestrel Ballistics Meter to a tripod using the optional Kestrel Vane Mount and use the LiNK Ballistics app to quickly adjust the target range and direction of fire and view the shooting solution and wind rose without leaving your shooting position. It’s like having a meteorologist and ballistician standing next to you while you shoot.

Download Kestrel LiNK Ballistics for iOS:

LiNK (Kestrel)

An iOS application to view you Kestrel Ballistics data.


Quick Look

  • Wirelessly adjust the target range and/or direction of fire on your Kestrel and view resulting elevation and windage solution without ever leaving your shooting position.
  • Build and transfer custom gun/bullet profiles.
  • Comprehensive Applied Ballistics bullet library provides G1/G7 ballistics coefficients, weight, diameter and length data for over 500 bullets.
  • With Kestrel Elite Meters, also access and use Applied Ballistics Custom Drag Models, providing exact drag profiles for supersonic, transonic, and subsonic bullet flight for maximum accuracy at extreme long range.
  • Advanced Multi Target view allows you to simultaneously view the elevation and windage solution for up to 8 targets defined by direction, range and angle - giving you the edge at precision rifle matches (available for Kestrel Elite only).

Example Screen Shots


See elevation and windage solutions as well as wind speed and direction without leaving your shooting position. Changing Target Range and/or Direction of Fire in the app automatically updates the solution from the Kestrel remotely.

Input up to 8 separate target ranges to see elevation and windage solutions for each. Perfect for competition multi-target stages.

Create and manage gun and bullet profiles for easy upload to and from your Kestrel. Includes bullet data from the Applied Ballistics G1/G7 bullet library.


Kestrel Firmware:

Kestrel 5 Series Downloads

Version 1.22

Device Compatibility:

  • Firmware: iOS versions 9 and higher.
  • Hardware: iPhone 4s onward, iPad 3rd generation onward, iPod Touch 5th generation onward.

Kestrel Compatibility:

  • Kestrel Sportsman Weather Meter with Applied Ballistics with LiNK
  • Kestrel 5700 Ballistics Weather Meter with LiNK
  • Kestrel 5700 Elite Weather Meter with Applied Ballistics with LiNK
... Read more

The free Kestrel LiNK Ballistics app is the perfect companion to the Kestrel Sportsman, Kestrel 5700 Ballistics Weather Meter, and Kestrel 5700 Elite Weather Meter with Applied Ballistics. Build and manage your gun/bullet profiles and download them to your Kestrel Ballistics Meter before you set out. At the range or match, secure your Kestrel Ballistics Meter to a tripod using the optional Kestrel Vane Mount and use the LiNK Ballistics app to quickly adjust the target range and direction of fire and view the shooting solution and wind rose without leaving your shooting position. It’s like having a meteorologist and ballistician standing next to you while you shoot.

Download Kestrel LiNK Ballistics for Android:

LiNK (Kestrel)

Download the Kestrel LiNK Ballistics app from the google play store.


Quick Look

  • Wirelessly adjust the target range and/or direction of fire on your Kestrel and view resulting elevation and windage solution without ever leaving your shooting position.
  • Build and transfer custom gun/bullet profiles.
  • Comprehensive Applied Ballistics bullet library provides G1/G7 ballistics coefficients, weight, diameter and length data for over 500 bullets.
  • With Kestrel Elite Meters, also access and use Applied Ballistics Custom Drag Models, providing exact drag profiles for supersonic, transonic, and subsonic bullet flight for maximum accuracy at extreme long range.
  • Advanced Multi Target view allows you to simultaneously view the elevation and windage solution for up to 8 targets defined by direction, range and angle - giving you the edge at precision rifle matches (available for Kestrel Elite only).

Example Screen Shots


See elevation and windage solutions as well as wind speed and direction without leaving your shooting position. Changing Target Range and/or Direction of Fire in the app automatically updates the solution from the Kestrel remotely.

Input up to 8 separate target ranges to see elevation and windage solutions for each. Perfect for competition multi-target stages.

Create and manage gun and bullet profiles for easy upload to and from your Kestrel. Includes bullet data from the Applied Ballistics G1/G7 bullet library.


Kestrel Firmware:

Kestrel 5 Series Downloads

Version 1.22

Device Compatibility:

  • Firmware: Android 4.3 and higher.
  • Hardware: Most Android Devices with Bluetooth Smart®, including Samsung Galaxy, Nexus 4, Motorola Droid and other recent generation phones and tablets.

LiNK (Kestrel)

A simple guide to help you update your Firmware on your Kestrel using LiNK for Android

Kestrel Compatibility:

  • Kestrel Sportsman Weather Meter with Applied Ballistics with LiNK
  • Kestrel 5700 Ballistics Weather Meter with LiNK
  • Kestrel 5700 Elite Weather Meter with Applied Ballistics with LiNK
... Read more

The Kestrel LiNK App for iOS puts crucial information at your fingertips with remote mobile device viewing of real-time readings from 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, and customizable alerts based on temperature, heat index, wind or other measurements. Data is transmitted wirelessly via Bluetooth Smart® up to 100’ line of sight or more.

Download Kestrel LiNK for iOS (Formerly Kestrel Connect):

LiNK (Kestrel)

An application that can be used to view and analyze your Kestrel data on an iOS device.


Quick Look

  • Compatible with Kestrel 5 Series Weather Meters with LiNK and all Kestrel DROP Wireless Data Loggers.
  • View real-time measurements and download data logs from devices within range. LiNK for iOS can connect to up to 8 devices at the same time.
  • View and analyze logged data using range Min/Max/Average statistics and clear scrolling graphs.
  • Get alerts when conditions exceed thresholds you set in the app. (Note: Use of alerts feature reduces battery life of mobile device.)
  • Easily export and email selected data ranges or entire log in .csv format for record keeping and analysis.
  • Post snapshots of current conditions to social media with one click.
  • Manage your Kestrel's name, logging rate and other device settings.
  • Get alerted to available firmware updates for your Kestrel and install them wirelessly.
  • *New* Remote Monitoring – Set Alert Service on a local mobile device and receive emails from your DROP or Kestrel 5 Series whenever conditions go outside your preset threshold.

Example Screen Shots


Drag and drop your desired measurements to the real-time Dashboard. Share your Dashboard to social media.

See every current measurement from your Kestrel meter or DROP on the Readings screen.

New logged data is automatically added to the history in the app every time your device is within range. Scroll forward or back though all data to see all time-stamped measurements.

Bluetooth Smart makes it easy to make connections to devices within range from within the app.

Manage settings on your Kestrel 5 Meter or Kestrel DROP from within the app - alerts, name, connection settings. Install firmware updates.


Kestrel Firmware:

LiNK (Kestrel Ballistics)

A simple guide to help you update your Firmware on your Kestrel using LiNK for iOS

Kestrel 5 Series Downloads

Version 1.22

Device Compatibility:

  • Firmware: iOS versions 6 and higher.
  • Hardware: iPhone 4s onward, iPad 3rd generation onward, iPod Touch 5th generation onward.

Kestrel Compatibility:

  • Kestrel DROP D1 Wireless Temperature Data Logger
  • Kestrel DROP D2 Wireless Temperature & Humidity Data Logger
  • Kestrel DROP D3 Wireless Temperature, Humidity and Pressure Data Logger
  • Kestrel 5000 Environmental Meter with LiNK
  • Kestrel 5100 Racing Weather Meter with LiNK
  • Kestrel 5200 Professional Weather Meter with LiNK
  • Kestrel 5400 Heat Stress Tracker with LiNK
  • Kestrel 5500 Weather Meter with LiNK
  • Kestrel Sportsman Weather Meter with Applied Ballistics with LiNK
  • Kestrel 5700 Ballistics Weather Meter with LiNK
  • Kestrel 5700 Elite Weather Meter with Applied Ballistics with LiNK
... Read more

Transfer data from your Kestrel 5 Series device and archive on your Mac computer. Data logs can be exported as csv files for viewing and analysis in spreadsheets. This software also facilitates updates and upgrades to your device firmware.

Download Kestrel LiNK for MAC:

LiNK (Kestrel)

Kestrel LiNK Version 1.04.03 for OSX


Quick Look

  • Manage updates and upgrades to device firmware
  • View device information such as device name, model number, firmware version, hardware version and serial number. Rename device.
  • Transfer data from your Kestrel 5 Series device wirelessly or with a USB cable.
  • Archive data logs.
  • Export data logs in csv format for viewing and analysis in spreadsheets.

Example Screen Shots


Easily connect your Kestrel to the application using bluetooth.

Manage your Kestrel: change its name, download data, and/or update your unit.

Export and analyze your data.


Kestrel Firmware:

Kestrel 5 Series Downloads

Version 1.22

Kestrel Firmware Version 1.22 Update Installer for OSX

Kestrel Firmware Version 1.22 Update Installer for Windows

Device Compatibility:

  • Firmware: This program is only compatible with Mac OS X 10.7 or higher.

Kestrel Compatibility:

  • Kestrel 5000 Environmental Meter with LiNK
  • Kestrel 5100 Racing Weather Meter with LiNK
  • Kestrel 5200 Professional Weather Meter with LiNK
  • Kestrel 5400 Heat Stress Tracker with LiNK
  • Kestrel 5500 Weather Meter with LiNK
  • Kestrel Sportsman Weather Meter with Applied Ballistics with LiNK
  • Kestrel 5700 Ballistics Weather Meter with LiNK
  • Kestrel 5700 Elite Weather Meter with Applied Ballistics with LiNK
... Read more

The Kestrel LiNK App for Android puts crucial information at your fingertips with remote mobile device viewing of real-time readings from 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, and customizable alerts based on temperature, heat index, wind or other measurements. Data is transmitted wirelessly via Bluetooth Smart® up to 100’ line of sight or more.

Download Kestrel LiNK for Android

LiNK (Kestrel)

An application that can be used to view and analyze your Kestrel data on an Android device.


Quick Look

  • Compatible with Kestrel 5 Series Weather Meters with LiNK and all Kestrel DROP Wireless Data Loggers.
  • View real-time measurements and download data logs from devices within range. LiNK for Android can connect to one device at a time.
  • View and analyze logged data using range Min/Max/Average statistics and clear scrolling graphs.
  • Get alerts when conditions exceed thresholds you set in the app. (Note: Use of alerts feature reduces battery life of mobile device.)
  • Easily export and email selected data ranges or entire log in .csv format for record keeping and analysis.
  • Post snapshots of current conditions to social media with one click.
  • Manage your Kestrel's name, logging rate and other device settings.
  • Get alerted to available firmware updates for your Kestrel and install them wirelessly.
  • *New* Remote Monitoring – Set Alert Service on a local mobile device and receive emails from your DROP or Kestrel 5 Series whenever conditions go outside your preset threshold.

Example Screen Shots


Drag and drop your desired measurements to the real-time Dashboard. Share your Dashboard to social media.

See every current measurement from your Kestrel meter or DROP on the Readings screen.

Select data ranges to see Min/Max/Avg or export data.

New logged data is automatically added to the history in the app every time your device is within range. Scroll forward or back though all data to see all time-stamped measurements.

Bluetooth Smart makes it easy to make connections to devices within range from within the app.

Manage settings on your Kestrel 5 Meter or Kestrel DROP from within the app - alerts, name, connection settings. Install firmware updates.


Kestrel Firmware:

LiNK (Kestrel)

A simple guide to help you update your Firmware on your Kestrel using LiNK for Android

Kestrel 5 Series Downloads

Version 1.22

Device Compatibility:

  • Firmware: Android 4.3 and higher.
  • Hardware: Most Android devices with Bluetooth Smart®, including Samsung Galaxy, Nexus 4, Motorola Droid and other recent generation phones and tablets.

Kestrel Compatibility:

  • Kestrel DROP D1 Wireless Temperature Data Logger
  • Kestrel DROP D2 Wireless Temperature & Humidity Data Logger
  • Kestrel DROP D3 Wireless Temperature, Humidity and Pressure Data Logger
  • Kestrel 5000 Environmental Meter with LiNK
  • Kestrel 5100 Racing Weather Meter with LiNK
  • Kestrel 5200 Professional Weather Meter with LiNK
  • Kestrel 5400 Heat Stress Tracker with LiNK
  • Kestrel 5500 Weather Meter with LiNK
  • Kestrel Sportsman Weather Meter with Applied Ballistics with LiNK
  • Kestrel 5700 Ballistics Weather Meter with LiNK
  • Kestrel 5700 Elite Weather Meter with Applied Ballistics with LiNK
... Read more

Transfer data from your Kestrel 5 Series device and archive on your Windows computer. Data logs can be exported as csv files for viewing and analysis in spreadsheets. This software also facilitates updates and upgrades to your device firmware.

Download Kestrel LiNK for Windows:

LiNK (Kestrel)

Kestrel LiNK Version 1.04.03 for Windows


Quick Look

  • Manage updates and upgrades to device firmware
  • View device information such as device name, model number, firmware version, hardware version and serial number. Rename device.
  • Transfer data from your Kestrel 5 Series device wirelessly or with a USB cable.
  • Archive data logs.
  • Export data logs in csv format for viewing and analysis in spreadsheets.

Example Screen Shots

Easily connect your Kestrel to the application using bluetooth.

Manage your Kestrel: change its name, download data, and/or update your unit.

Export and analyze your data.


Kestrel Firmware:

Kestrel 5 Series Downloads

Version 1.22

Kestrel Firmware Version 1.22 Update Installer for OSX

Kestrel Firmware Version 1.22 Update Installer for Windows

Device Compatibility:

  • Firmware: LiNK is currently compatible with Windows 7, Windows 8, and Windows 8.1 and Windows 10.

Kestrel Compatibility:

  • Kestrel 5000 Environmental Meter with LiNK
  • Kestrel 5100 Racing Weather Meter with LiNK
  • Kestrel 5200 Professional Weather Meter with LiNK
  • Kestrel 5400 Heat Stress Tracker with LiNK
  • Kestrel 5500 Weather Meter with LiNK
  • Kestrel Sportsman Weather Meter with Applied Ballistics with LiNK
  • Kestrel 5700 Ballistics Weather Meter with LiNK
  • Kestrel 5700 Elite Weather Meter with Applied Ballistics with LiNK

Bluetooth Support:

LiNK (Kestrel)

Troubleshooting Bluetooth Dongle Issues with the Kestrel 5000 Series Models and LiNK for Windows.

... Read more