Kestrel DROP D1P Wireless Temperature Monitor and Data Logger
Easily monitor and log temperature conditions—in liquid, soil, or hard-to-reach places—with the rugged and reliable Kestrel DROP with Probe D1P. Perfect for a wide range of applications, it excels in research environments, cold chain management, commercial freezers, and refrigeration systems, ensuring precise temperature monitoring and compliance with critical regulations. Its submersible probe and wireless connectivity make it the ultimate tool for accurate, reliable temperature tracking across diverse and challenging conditions.

Kestrel DROP D1P Wireless Temperature Monitor and Data Logger Overview
Environmental Measures | |
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![]() | Temperature |
Tips For Taking Accurate Measurements |
The Kestrel DROP D1P combines a rugged design with advanced features that simplify data collection in the toughest conditions. Whether submerged, enclosed, or in extreme environments, the DROP D1P delivers unparalleled accuracy and convenience.
Key Features
- Unmatched Versatility: Monitor temperature in submerged, hard-to-reach, or harsh conditions with ease.
- Rugged Durability: Built to withstand tough environments, drop-tested to MIL-STD 810, and waterproof to IP67 standards.
- Submersible Probe: Reliable temperature readings during extended submersion, exceeding IP67 capabilities.
- Effortless Data Management: View, log, and share data wirelessly using Bluetooth® and the free Kestrel LiNK app on your iOS or Android device.
- Extensive Data Logging: Store over 16,000 data points with customizable intervals for precise monitoring and historical analysis.
- Compact and Portable: Lightweight design with a built-in D-ring for easy deployment.
Why Choose the Kestrel DROP D1P?
The Kestrel DROP D1P is the easiest way to track temperature in submerged or hard-to-reach areas. Here’s why professionals and enthusiasts trust it:
- Reliability in Any Environment
Perfect for aquatic research, soil temp monitoring, or cold storage, the DROP D1P is rugged enough to thrive in extreme conditions. The submersible probe ensures precise measurements while the main unit stays securely in place for optimal Bluetooth data transmission. - Efficient and User-Friendly
Powered by the Kestrel LiNK app, you can seamlessly monitor real-time and historical data, customize alerts, and share insights—all from your mobile device. Monitor up to 8 different devices simultaneously and export reports with ease. - Trusted Quality
Built in the USA, each unit is calibrated to NIST-traceable standards and includes a Certificate of Conformity, ensuring unmatched accuracy and reliability. Backed by a five-year warranty, the DROP D1P is a tool you can count on for years to come.
Applications

Where can the Kestrel DROP D1P make a difference?
- Aquatic Monitoring: Track water temperatures in pools, aquariums, aquaponics systems, or environmental research projects.
- Research: Ideal for scientific studies requiring precise and reliable temperature data in various environments.
- Agriculture & Gardening: Monitor soil temperatures to optimize growth conditions for plants and crops.
- Cold Chain Storage: Ensure compliance by maintaining precise temperature logs in refrigeration and storage units.
- Industrial Applications: Perfect for concrete curing, HVAC systems, and more.
Which Kestrel DROP is right for me?
MEASUREMENTS | DROP D1 | DROP D1P | DROP D2 | DROP D2AG | DROP D3 | DROP D3FW |
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Temperature | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
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 | Red, Blue, Tan, Orange | Hi-Viz Green | Red, Blue, Tan | Orange |
Buy Now | Buy Now | Buy Now | Buy Now | Buy Now | Buy Now |
- Drop-Tested to MIL-STD-810G
- DROP unit waterproof to IP-67 (3'/1M for 30 minutes) - Probe submersible beyond IP-67 limits
- LiNK Wireless Communication to Mobile Devices (Bluetooth low energy)*
- Temperature Sensor (Patented External Isolated)
- Waterproof to IP67 (3'/1M for 30 minutes)
- Battery - 1 x CR2032
- Certificate Of Conformity (Spec Sheet)
- D-Ring
- Instructions

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.
Learn more about what the Kestrel LiNK app can do for you.
Download from your App Store
An application that can be used to view and analyze your Kestrel data on an iOS or Android device.
Kestrel LiNK for Windows and MAC
Kestrel LiNK for Windows and MAC provides a desktop solution for data retrieval and export as well as firmware updates. Expanded connectivity options allow you to wirelessly connect LiNK enabled Kestrel 5 Series Meters, using the optional LiNK USB Dongle, or make a wired USB connection with non-LiNK Kestrel 5 Meters using the USB Data Transfer Cable.
Kestrel LiNK for Windows (Size: 10.7 MB)
Kestrel LiNK Version 1.04.04 for Windows
Kestrel LiNK for OSX (Size: 10 MB)
Kestrel LiNK Version 1.04.04 for OSX
Kestrel LiNK Devices on Ambient Weather Network

Kestrel LiNK devices, including the Kestrel 5000 series meters and Kestrel DROP data loggers, can now connect to the cloud-based Ambient Weather Network (AWN) platform for extended remote monitoring capabilities.*
You can set up your Kestrel device at any desired location that has an internet connection and then view the onsite conditions from wherever you are -- on the AWN app or AmbientWeather.net. You do not have to be onsite to remain in the know about your weather conditions.
Create a free account at AmbientWeather.net
*The Kestrel LiNK device data transfer to the AWN cloud platform functionality is specific to Android devices, as the integration with AWN and the transmission of data via the LiNK app relies on the Android platform's capabilities. The Android device must be within Bluetooth range and connected to the internet in order to transmit data from the Kestrel device to the AWN cloud platform. This allows for real-time monitoring and data analysis from virtually anywhere.
