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Kestrel DROP D3 Bluetooth Data Logger; Temperature, Humidity & Pressure

by Kestrel
Original price $129.00 USD - Original price $129.00 USD
Original price
$129.00 USD
$129.00 USD - $129.00 USD
Current price $129.00 USD
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In stock
In stock
In stock
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The Kestrel D3 DROP Measures

  • Barometric Pressure
  • Density Altitude
  • Dew Point Temperature
  • Heat Stress Index
  • Pressure Trend
  • Relative Humidity
  • Temperature


5 Year Manufacturer's Warranty

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Kestrel DROP D3 Wireless Temperature, Humidity & Pressure Data Logger

The Kestrel DROP D3 is designed to monitor and record a full suite of environmental conditions, including temperature, humidity, heat index, dew point temperature, station pressure, density altitude and pressure trend in a variety of indoor, outdoor and industrial applications.

Kestrel DROPs are ideal for monitoring conditions in manufacturing, transportation and shipping, shooting and hunting, facilities management, agriculture, healthcare and pharmaceutical organizations, firefighting, the military field, and recreational and in-home use. Put a DROP virtually anywhere and ensure safe conditions when you can’t be there.

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.

Log, View and Share on the Kestrel LiNK App

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

DROPs Are Powered by the Kestrel LiNK App


  • 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.



  • Dew Point
  • Heat Stress Index
  • Humidity
  • Pressure (Absolute)
  • Pressure Trend
  • Relative Humidity
  • Temperature


    • Bluetooth Smart (Wireless Technology)
    • Data Logger
    • Drop-Tested, MIL-STD-810G
    • IP67 Waterproof
    • Lightweight & Durable

    Who's Using the Kestrel DROP D2 Wireless Temperature & Humidity Data Logger

    • Education & Classroom Use
    • Facilities Management
    • Farming & Agriculture
    • Firefighting
    • Hazardous Materials Response
    • Hunting
    • Individual At-Home Use
    • Military
    • Outdoor Event Organizers
    • Precision & Competitive Shooting
    • Research & Technology

    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

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