KESTREL DROP D3 Wireless Temperature, Humidity & Pressure Data Logger


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Introducing the Kestrel DROP D3 – Your Comprehensive Environmental Monitoring Solution

The Kestrel DROP D3 is a versatile and compact device engineered to monitor and record a wide range of environmental conditions such as temperature, humidity, heat index, dew point temperature, barometric pressure, density altitude, and pressure trends. This reliable monitor is perfect for various indoor, outdoor, and industrial applications.

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

Multi-Industry Compatibility

Ideal for industries like manufacturing, transportation, shipping, shooting and hunting, facilities management, agriculture, healthcare, pharmaceuticals, firefighting, military, and recreational or residential use, the DROP D3 ensures safe conditions in virtually any setting.

Compact, Accurate, Durable, and Waterproof

Measuring only 1 x 1.8 x 2.4 inches (24 x 46 mm x 60 mm) and weighing a mere 1.2 ounces (34 grams), the DROP D3 is built to withstand harsh environments. Compliant with military and international standards for water, dust, and shock resistance (IP-67 and MIL-STD-810G), this device features a robust D-ring for easy hanging.

Monitor with the Kestrel LiNK App

The free Kestrel LiNK app enables real-time monitoring of any DROP logger within wireless range (up to 100' or more line of sight) via Bluetooth® low energy. Connect to up to 8 DROP loggers simultaneously, and store data logs from many more devices. View Min/Max/Average readings, scrolling graphs, and detailed data logs for each point, and adjust settings or receive real-time threshold alerts. Share environmental data via email, Facebook, or Twitter.

Device Compatibility

The DROP D3 is compatible with iOS 6 or later (iPhone 4s or newer, iPad 3rd gen or newer, iPod Touch 5th gen or newer) and Android 4.3 or higher (Samsung Galaxy, Nexus 4, Motorola Droid, and other recent generation phones and tablets).

American-Made Quality with a Five-Year Warranty

Kestrel environmental instruments are designed and manufactured in the USA, reflecting their commitment to quality and durability. The DROP D3 is backed by an industry-leading five-year warranty.

DROP D3 Applications

The Kestrel DROP D3 is suitable for long-range shooting, aviation, and skydiving, providing crucial data for precise calculations, real-time flight decisions, and canopy size adjustments. Trust the DROP D3 for your environmental monitoring needs.


Relative Humidity  
Dew Point Temp.  
Heat Stress Index  
Barometric 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

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