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The Kestrel DROP D3 Wireless Temperature, Humidity, & Pressure Monitor / 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.
The Kestrel DROP D3 logger can be placed wherever needed to monitor and log temperature, humidity, heat index, dew point temperature, station pressure, density altitude and pressure trend. The data logs are retrieved wirelessly and automatically through the Kestrel Connect app when within range (up to 100ft.) of your iOS or Android device.
Kestrel DROP data loggers are designed to be used anywhere you need to track environmental conditions. DROP loggers meet military and international standards for water, dust and shock resistance (IP-67: 30 minute submersion at 1m and MIL-STD-810G drop tested) and are equipped with a sturdy D-ring for hanging wherever needed.
A Kestrel DROP is perfect for:
- Ballistics Environment - Hunting - Precision & Competitive Long-Range Shooting
- Auto Racing - Bracket, Pit, Drag, Professional
- Military Weather & Environmental Monitoring
- Weather Monitoring - Outdoor Sports
- Facilities Management - Transportation & Logistics
- Aviation - Skydiving - Veterinary Research & Testing
- Pharmaceutical and/or Medical Storage & Transportation
- Indoor Environment Monitoring
Wireless, Powered by the Kestrel LiNK App
Kestrel LiNK is the free app that powers the DROP loggers. With Kestrel Connect, you can view real-time readings from any DROP logger within wireless range (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 log is viewable as a scrolling graph with detailed data for each logged point. The 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. Send and share real-time and logged environmental data via email, Facebook or Twitter.
Built in the USA. Designed to fit anywhere, and go everywhere!
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.
Every Kestrel environmental instrument is designed and built entirely in the USA. Kestrel’s history and focus on quality and ruggedness. 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.
one2shoot4
2025-08-27 15:36:57
Kestrel Drop D3 Wireless and the Strelok pro app Bluetooth together and update your weather info for your exact location and keep you in the game on the 1000 yard range. Money well spent!
J. Kelly
2025-08-24 20:34:10
Nice hardware. Nice software (I am in the biz).Overall this is a great gadget and at a nice price to boot.I called customer support to recommend a couple minor improvements and they could not have been more pleasant.
foster2
2025-08-08 17:57:04
I know why they call it drop now. If you drop it one time, and it falls a couple feet onto the floor, it’s finished. Broken, dead, nada. Up until that point I would have suffered through the crappy iOS software that looks like it was written by a jr school kid on a weekend. But this whole thing is garabage. Don’t waste your hard earned money on these bobbles
Jeremy S
2025-08-02 10:15:53
Recently used for a 12 day camping trip in Alaska. It’s nice to get actual readings of temperature and humidity when rating and reviewing our gear. Able to see temps dropped to 24 degrees at our tent site, as opposed to the weather report for the nearest town saying the “low†was 29. Five degrees is a big difference when trying to stay warm in a sleeping bagSet to hourly readings, so battery should last awhile. Bluetooth picks up quickly.CON: Would love to have an altitude reading as well.
John McDonnell
2025-07-13 18:38:08
I wish there was an on off button. I only want to use it when I am outside. To prevent the battery from draining when I am not using it I have to open the back and remove the battery. When in use it preforms as advertised. The app on my iPhone works great.
Customer
2025-06-14 12:37:04
Great little device with accurate & reliable Data.
Andrew Ferguson
2025-02-17 16:51:35
Update 11-2023: I am a bit disappointed to say that the battery cover no longer closes properly. Despite only removing the cover once or twice to replace the battery, one of the tabs that hold the cover in place broke. My Drop D3 has not been left exposed to the elements, and was only outdoors when I used it for camping. A real shame, and based on this I am downgrading my rating of this product.The Kestrel Drop D3 is an excellent device and does its job nicely. All good on that end.The Kestrel LiNK app… well, that is a mix of good and bad.There are minor things like setting the device color to match your device, which is a nice touch, except the app appears to lose this information. This has happened several times and not clear why this happens.The biggest issue with the app is it seems to have a mind of its own when it comes to automatically connecting and syncing data. Sometimes it connects, sometimes you have to hit connect, sometimes the connect/dashboard button does not show unless you refresh the device screen.The other thing is that it does not always sync the data and I have not found a reliable method to make this happen. Also, it sometimes syncs the realtime information, but not the logged information.Unfortunately, the LiNK app behavior really gets in the way of using the device. The app is key, as without the app the device just collects data and nothing more.
Customer
2025-01-19 18:31:24
This device is great for monitoring weather observations and keeping the data to plot/explore later. The resolution is great and so is the customizability. I left it out during a winter storm, and it continued to work as temperatures reached -5 F, much lower than the operational temperatures. My only complaint is the app being buggy. I was doing a 20 minute, high resolution session, and the app glitched and the data was completely lost. Sometimes data is just missing from logs too, for no good reason. Still a great device for what you pay.
uuulala
2025-01-08 15:55:12
es funktioniert mit chairgun elite. perfekt. man braucht keinen kestrel mehr.
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