Kestrel DROP D2HS Heat Stress Monitor

Know when heat and humidity are causing unsafe conditions!
$99.00
Availability: In stock
SKU
0720ORA

 FREE US SHIPPING

Kestrel DROP D2HS Heat Stress Monitor Overview

Environmental Measures
Dew Point Temperature
Heat Stress Index
Relative Humidity
Temperature
Tips For Taking Accurate Measurements

Know your temperature and humidity conditions anywhere with the small, rugged Kestrel DROP D2 Heat Stress Monitor.

The Kestrel DROP D2 data logger can be placed wherever needed to log temperature and humidity with the data logs retrieved wirelessly and automatically to the Kestrel LiNK app when within wireless range(up to 100’ or more line of sight).

  • The EASIEST way to monitor and track temperature, humidity, heat index and dew point in almost any environment – wet or dry, indoors or out
  • View data wirelessly via Bluetooth Smart on your iOS or Android phone or tablet with the free Kestrel LiNK app 
  • Store thousands of data points and get months of logging on a single coin-cell battery - customize logging rate, connections and alerts
  • See, save and share data from multiple DROPs with just one phone or tablet --
    • iOS 6 installed iPhone 4s, iPad 3rd generation or later
    • The Kestrel DROP syncs with your smartphone and tablet.
    • Android 4.3 and higher. Works with most Android devices with Bluetooth Smart®, including Samsung Galaxy, Nexus 4, Motorola Droid and other recent generation phones and tablets. 

Use a DROP Anywhere - Small, Accurate, Rugged and Waterproof

Each DROP measures just 1 x 1.8 x 2.4 inches (24 x 46 mm x 60 mm) and weighs just 1.2 ounces (34 grams).  DROP loggers meet military and international standards for water, dust and shock resistance (IP-67 and MIL-STD-810G) and are conveniently equipped with a sturdy d-ring for hanging wherever needed.

DROPs Are Powered by the Kestrel LiNK App

DOWNLOAD KESTREL LiNK FOR iOS

DOWNLOAD KESTREL LiNK FOR ANDROID

Kestrel LiNK is the free app that powers the DROP loggers. With Kestrel LiNK on your smart phone or tablet, you can view real-time readings from any DROP logger within wireless range (up to 100’ or more line of sight) via Bluetooth Low Energy.  Each phone or tablet can connect to up to 8 DROP loggers at the same time and store data logs from many more. Min/Max/Average readings are clearly displayed and the data log is viewable as a scrolling graph with detailed data for each logged point. The Kestrel LiNK app also allows adjustment of the logging interval and other settings as well as real-time threshold alerts. Readings can be updated as frequently as every 2 seconds and logging time and date are automatically updated whenever connected to your smart device. You can also send and share real-time and logged environmental data via email, Facebook or Twitter

Requirements:

  • iOS 6 installed iPhone 4s, iPad 3rd generation or iPod Touch 5th generation – or any later iOS or hardware configuration. Will not work on iPhone 4, 3GS on 3G or any earlier iPad or iPod generation.
  • Android 4.3 and higher. Works with most Android devices with Bluetooth Smart®, including Samsung Galaxy, Nexus 4, Motorola Droid and other recent generation phones and tablets. 

American-Made Quality and a Five-Year Warranty

Every Kestrel environmental instrument is designed and built entirely in the USA. Kestrel’s history and focus on quality and ruggedness is reflected in the DROP’s industry-leading five-year warranty. Kestrel has been building rugged environmental instruments that help people do their jobs more safely and efficiently for more than fifteen years and has built a reputation for reliability one meter at a time.


DROP Customer Feedback:

Kestrel DROP can save your cigar collection

The Kestrel DROP D2 and D3 are absolutely the best kept secret in the cigar industry! In the high tech world we live in, I am now able to keep a vigilant eye over my investment by remotely monitoring the environmentals of my humidor via a simple app on my iPhone. Having the ability to set alerts when humidity and temperature drop or go above ideal conditions is invaluable.  This is a MUST HAVE accessory for anyone with a humidor!

 


Where Can a Kestrel DROP Be Used?

  • Bedroom
  • Basement
  • Attic
  • Kennel
  • Barn
  • Hatchery
  • Greenhouse
  • Shipping Container
  • Airplane
  • Ship
  • Warehouse
  • Factory
  • Humidor
  • Safe
  • Refrigerator
  • Field
  • Winery
  • Forest
  • Laboratory
  • Classroom
  • Training Center
  • Kitchen
  • Silo
  • Shooting range
  • Construction site
  • HVAC System

Which Kestrel DROP is right for me?

MEASUREMENTS DROP D1 DROP D2 DROP D2HS DROP D2AG DROP D3 DROP D3FW
Temperature
Relative Humidity  
Dew Point Temp.  
Heat Stress Index  
Station Pressure (Absolute Pressure)        
Density Altitude        
Temperature Humidity Index (THI)          
Wet Bulb Temperature (Psychrometric)          
Color Available Red, Blue, Tan Red, Blue, Tan Orange Hi-Viz Green Red, Blue, Tan Orange
  Buy Now Buy Now Buy Now Buy Now Buy Now Buy Now

Which Kestrel Heat Stress Unit is right for me?

MEASUREMENTS Kestrel DROP D2HS Heat Stress Monitor Kestrel 3000HS Heat Stress Meter Kestrel 5400 Heat Stress Monitor Kestrel 5400 Heat Stress Tracker Pro with Compass and LiNK + Vane Mount
Temperature
Relative Humidity
Dew Point Temp.
Heat Index
Wind Speed  
Wind Chill  
Global Temp    
Naturally Aspirated Wet Bulb Temp    
Wet Bulb Globe Temp (WBGT)    
Thermal Work Limit    
Wet Bulb Temp (Psychrometric)    
Station Pressure (Absolute Pressure)    
Barometric Pressure    
Altitude    
Density Altitude    
Direction      
Crosswind      
Headwind / Tailwind      
  • Athletics
  • Coaches & Athletic Trainers
  • Heat Injury Prevention
  • Drop-Tested to MIL-STD-810G
  • Floats
  • LiNK Wireless Communication to Mobile Devices (Bluetooth low energy)*
  • Relative Humidity Sensor
  • Temperature Sensor (Patented External Isolated)
  • Waterproof to IP67 (3'/1M for 30 minutes)
  • Battery - 1 x CR2032
  • Certificate Of Conformity (Spec Sheet)
  • Instructions
SENSORS
SENSORS ACCURACY (+/-) RESOLUTION SPECIFICATION RANGE NOTES
AmbientTemperature 0.9 °F
0.5 °C
0.1 °F 0.1 °C 14 to 131°F
-10 to 55 °C
Airflow of 2.2 mph|1 m/s or greater provides fastest response and reduction of insolation effect. For greatest accuracy, avoid direct sunlight on the temperature sensor and prolonged sunlight exposure to the unit in low airflow conditions. Calibration drift is negligible for the life of the product. For further details, see Battery Operational Temperature Limits.
Relative Humidity 2%RH 0.1 %RH 10 to 90% 25°C noncondensing To achieve stated accuracy, unit must be permitted to equilibrate to external temperature when exposed to large, rapid temperature changes and be kept out of direct sunlight. Calibration drift is typically less than ±0.25% per year.
Pressure 1.5 hPa|mbar
0.044 inHg
0.022 PSI
0.1 hPa|mbar
0.01 inHg
0.01 PSI
25°C/77°F
700-1100 hPa|mbar
20.67-32.48 inHg
10.15-15.95 PSI
Monolithic silicon piezo-resistive pressure sensor with second-order temperature correction. Between 1100–1600 mbar, unit will operate with reduced accuracy. Sensor may not operate above 1600 mbar and can be damaged above 6,000 mbar or below 10 mbar. Calibration drift is negligible for the life of the product.

CALCULATED MEASUREMENTS
MEASUREMENT ACCURACY (+/-) RESOLUTION SENSORS EMPLOYED
Density Altitude 226 ft
69 m
1 ft 1 m Temperature, Relative Humidity Pressure
Dew Point 3.4 °F
1.9 °C
15-
95% RH. Refer to Range for Temperature Sensor
0.1 °F
0.1 °C
Temperature, Relative Humidity
Heat Index 7.1°F
4.0°C
0.1 °F
0.1 °C
Temperature, Relative Humidity
THI (NRC) 1.5 °F
0.8 °C
0.1 °F
0.1 °C
Temperature, Relative Humidity
THI (Yousef) 2.3 °F
1.3 °C
0.1 °F
0.1 °C
Temperature, Relative Humidity
Wet Bulb Temperature - Psychrometric 3.2 °F
1.8 °C
0.1 °F
0.1 °C
Temperature, Relative Humidity Pressure
ADDITIONAL PRODUCT INFO
Response Time & Display Update Display updates every 1 second. After exposure to large environmental changes, all sensors require an equilibration period to reach stated accuracy. Measurements employing RH may require longer periods particularly after prolonged exposure to very high or very low humidity. WBGT requires about 8 minutes to reach 95% accuracy and about 15 minutes to reach 99% accuracy after exposure to large environmental changes.
Data Storage Logged history stored for every measured value. Auto-store interval settable from 2 seconds to 12 hours*, overwrite on or off. D1: >13,000 data points, D2: >7,000 data points, D3: >6,000 data points.
Bluetooth® Data Connect Option Wireless range up to 100ft|30m. Compatible with Kestrel LiNK app for iOS (model 4s and later) and select Android products (Android 4.3 and higher) (See website for complete list of compatible 3rd party apps).
Certifications CE certified, RoHS, FCC, IC tested and WEEE compliant. Individually tested to NIST-traceable standards.
Origin Designed and manufactured in the USA from US and imported components. Complies with Regional Value Content and Tariff Code Transformation requirements for NAFTA Preference Criterion B.
Battery User-replaceable CR2032 (included).
Shock Resistance MIL-STD-810g, Transit Shock, Method 516.6 Procedure IV; unit only; impact may damage replaceable impeller.
Sealing Waterproof (IP67 and NEMA-6)
Battery Operational Temperature Limits 0° F to 140 ° F | -18 °C to 60°C Measurements may be taken beyond the limits of the operational temperature range of batteries by maintaining the unit within the operational range and then exposing it to the more extreme environment for the minimum time necessary to take reading.
Storage Temperature -22.0 °F to 140.0 °F | -30.0 °C to 60.0 °C.
Size & Weight 2.4 x 1.8 x 0.9 in | 6 x 4.5 x 2.3 cm 1.2oz | 34g (Lithium battery included)

DROP Data Logger Certificates of Comformity

Kestrel DROP Wireless Environmental Data Logger specification chart


Model & SKUs: Kestrel DROP D2 - Part # 0720ORA


LiNK (Kestrel)

Instructions for the use of the Kestrel LiNK App

Please see the attached guidance for problems and export issus with Kestrel LiNK iOS.

This tutorial will show you how to create a graph of the data that you exported from your Kestrel 5000 series or Kestrel DROP using one of the Kestrel LiNK applications.

DROP Data Logger Certificates of Comformity

Kestrel DROP Wireless Environmental Data Logger specification chart

DROP Data Logger Instruction Manuals

Getting Started with Kestrel DROP Wirelss Environmental Data Loggers

Kestrel 5 Series Downloads

Recommended Modifications to Athletic Participation Based on the Heat Index

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

Product Questions

Yes. You can always trade-in an older Kestrel, regardless of its condition, by using our Customer Trade-In Program.

... Read more

The Stats page shows the data that is currently stored in the logger on the DROP. Currently you need to disconnect and reconnect to acquire more data, so the Refresh is useful only during an active download. You can hit the Refresh button to populate more Stats as they are in the process of being downloaded to the application.

... Read more

Set the logging rate to the max, 12 hours. You could set the data refresh rate to its max, 1 minute, but that will only have an effect when connected to the DROP. Also if you connect to the DROP in colder weather, this will affect battery life more than in warmer temperatures. If possible, warm up the DROP before doing a data upload to Kestrel LiNK to help with battery life.

... Read more

This is really just personal preference. If the DROP name is related to its location or purpose, then obviously changing the name would be helpful each time.

... Read more

Yes. Once you make the settings to the DROP (custom name, logging rate, data refresh rate), those settings stay with the DROP itself. This means that all anyone else would have to do is download the Kestrel LiNK(Formerly Kestrel Connect) app from the iTunes App store and connect to the DROP to access.

... Read more

To read the data that has been logging on the DROPs, all you have to do is simply connect to the DROP with your iOS or Android device and the data log will be downloaded. You can tell it’s downloading by looking at the DROP’s name near the top of the screen, as you’ll see a spinning graphic and a percentage that changes over time. Once it has reached 100%, you’ll have to navigate to the Stats screen using the menu at the bottom of the app. There you’ll find an Export Data button at the top which you can use to email the data log to yourself and then print it out.

... Read more

DROP D1

  • Data Points: 13064
  • Logging every 2 seconds - Fills up after 7.5 hours
  • Logging every 10 minutes - Fills up after 90.7 days
  • Logging every 2 hours - Fills up after 544 days

DROP D2

  • Data Points: 8165
  • Logging every 2 seconds - Fills up after 4.5 hours
  • Logging every 10 minutes - Fills up after 56.7 days
  • Logging every 2 hours - Fills up after 340 days

DROP D3

  • Data Points: 8165
  • Logging every 2 seconds - Fills up after 3.4 hours
  • Logging every 10 minutes - Fills up after 56.7 days
  • Logging every 2 hours - Fills up after 340 days
... Read more

This is dependent on a setting for the DROP in the Manage Data Log section. If you go to Manage->Manage Data Log, you will notice a Wrap Log toggle button. If the Wrap Log toggle button is slid to the right (indicates ON), then the oldest logged data will be overwritten when the data logger is full. If the slide is to the left (indicates OFF), then no more data will be collected when the data logger becomes full.

... Read more

Please check out our tutorial:

LiNK (Kestrel)

Setting up Alert Services on Kestrel LiNK Application for Multiple People

... 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

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

The Stats page shows the data that is currently stored in the logger on the DROP. Currently you need to disconnect and reconnect to acquire more data, so the Refresh is useful only during an active download. You can hit the Refresh button to populate more Stats as they are in the process of being downloaded to the application.

... Read more

You must disconnect and then reconnect the DROP to get any additional logged data uploaded into the program. You can do this by closing and re-opening the program as long as Device Power Saving is turned ON.

... Read more

The D1 can store 13064 data points. The D2 can store 8165 data points.And the D3 can store 6220 data points.

... Read more

LiNK (Kestrel)

Instructions for the use of the Kestrel LiNK App

... Read more
Write Your Own Review
You're reviewing:Kestrel DROP D2HS Heat Stress Monitor
Your Rating
  1. Using Kestrel DROP to Measure Heat Index for Horses

    When it's hot and humid, humans aren’t the only species that suffer from overheating. Horses and other livestock feel the discomfort of heat and humidity, and measuring heat index with Kestrel DROP D2AG can help protect your horses.
  2. WBGT: A Key Measurement in Preventing Heat Stress Injury

    Heat stress is a condition that occurs when the body is unable to regulate its internal temperature and cool itself through sweating. Heat stress shows many symptoms and encompasses several heat-induced illnesses such as heat stroke, heat exhaustion, heat cramps and heat rashes. These conditions are more likely to occur during hot summer months, but may affect workers and athletes in various climates and conditions year round. The most common com
Other Items you Might Consider