The BroodMinder Citizen Science package includes all three BroodMinder devices. With this configuration of your hive, you will be able to compare data with all the other BroodMinder hives on BeeCounted.org.
BroodMinder-TH goes on top of the upper brood box
BroodMinder-T2 goes on top of the lower brood box
BroodMinder-W goes under the hive
You can also select the 'classic' version of 2 -TH devices.