My Broodminder: Saving the Bees with Backyard Data
BeeCounted Citizen Science Apiary Map

My Broodminder: Saving the Bees with Backyard Data

By CDBeck | AtHome | 19 Feb 2021

Map image courtesy of BeeCounted Citizen Science 

In earlier posts I used my Seek Thermal Camera to show the heat coming off each of my two bee hives before and after I added insulation for the winter.  So far the bees have survived the winter – they’re out and about on sunny days when the temperature is at least in the mid 40’s F.  But that’s about all I can tell about how the colonies are doing without opening the hives and taking a look. 

So in January I upped my hive monitoring game and got a Broodminder T2 for each of my hives.

Broodminder T2 temperature sensors

Broodminder T2 

It's only ¼ inch thick and fits easily between two hive boxes or the hive box and inner cover.  It records the temperature once every hour, 15 minutes, or 5 minutes.  To retrieve the data, just sync it through a Bluetooth connection with your Broodminder app available for iPhone and Android. 

Screenshot Broodminder app

Screenshot of downloaded data from Broodminder app

From there you upload your data to the MyBroodminder cloud.  Register an account with to see your data online.  I like the summary option where  it graphs my temperature data along with the recorded air temperature for my location.

Hive temperature chart

One month of temperature data collected with Broodminder.

The black line is the temperature inside the white hive.  Blue line is the green hive temperature data.  The bottom dotted pink line is the outside air temperature.  On January 27 I changed the sampling rate from 1 hour to 15 minutes.

Data uploaded to the MyBroodminder cloud is public domain to be shared with researchers and other bee enthusiasts and can be accessed at

I’m using the BeeCounted Temperature information tab to show how my bees are doing-or should be doing- without having to open my hives everyday.  In return, I'm providing useful real life data to bee researchers and other like-minded bee enthusiasts.

And I just couldn’t resist comparing my Broodminder data to my Seek Thermal Camera images.

T2 installed in White Hive in normal light

Closeup of the T2 in the White hive with the notch in inner cover and screened vent of ventilation frame

White Hive vents in IR

Infrared image of notch and vent 

I took this infrared photo just after uploading my Broodminder data.  The scale on the left reads temperatures in the 50's F just above the inner cover.  The T2 recorded 60.22 F  on the bee side of the cover.

I'm okay with that!  I'll trust the T2 data over the camera images for measuring heat  but it's still nice to see the pictures!

Links to previous posts about my backyard bees:


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This retired analytical chemist now has the time to pursue anything and follow any topic that interests me. Never stop learning!


A blog about home craft. Well.....certain aspects of living at home: home cooking, food preservation, gardening, budgeting and the like.

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