Kestrel DROP D2 Wireless Temperature, and Humidity Data Logger

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.

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.

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) app from the Google or iTunes App store and connect to the DROP to access.

DROP D1

• Data Points: 16330
• Logging every 2 seconds - Fills up after 9 hours
• Logging every 10 minutes - Fills up after 113 days
• Logging every hour - Fills up after 680 days

DROP D2

• Data Points: 8164
• Logging every 2 seconds - Fills up after 4.5 hours
• Logging every 10 minutes - Fills up after 56.7 days
• Logging every hour - Fills up after 340 days

DROP D2 AG

• Data Points: 7257
• Logging every 2 seconds - Fills up after 4 hours
• Logging every 10 minutes - Fills up after 50 days
• Logging every hour - Fills up after 302 days

DROP D3

• Data Points: 6220
• Logging every 2 seconds - Fills up after 3.5 hours
• Logging every 10 minutes - Fills up after 43 days
• Logging every hour - Fills up after 259 days

DROP D3 Fire

• Data Points: 6531
• Logging every 2 seconds - Fills up after 3.6 hours
• Logging every 10 minutes - Fills up after 45 days
• Logging every hour - Fills up after 272 days

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.

Please check out our tutorial:

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.

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.

The D1 can store 16330 data points. The D2 can store 8164 data points. The D3 can store 6220 data points.

Please see the attached guidance with Exporting Issues with LiNK iOS.

You can obtain a new battery door from our site here: Battery Doors ... Permalink

Our DROPs use the standard CR2025 battery coin cell which can provide 3-4 months of battery life. If you want, the DROPs can use a CR2050 battery which can get you an extra month or two of battery life, however you will need to change the battery door and purchase a Kestrel 123 battery door for the DROP to make it fit

Please see this guidance for any power issues on the DROP

Troubleshooting a power issue with the Kestrel DROP   (Size: 504.4 KB)

Here is something to try if you DROP all of a sudden will not power up, even with a fresh battery.

No the DROP will not connect with the Kestrel LiNK Ballistics app. The app does not have a ballistic solver in it so you need to have a 2700 or 5700 in order for it to work correctly. However there are other 3rd party apps that will work with the DROP. Here is a list of them: 3rd Party Apps