Hello, you need the T100 Hub, then you can integrate 64 devices according to the manufacturer. I have connected 3 and it works perfectly.

Unless you have a castle, you shouldn't have any problem connecting 6 rooms to the Hub.

Tapo T315 must be connected together with HUB, I believe max 30 sensors,
Greetings Gianni

I have 6 of them myself. They all run perfectly.

Hub required - Tapo Hub is required to support smart functions such as remote monitoring, home automation, data export and more. Up to 64 devices possible.

Hello, if you have the H100 Hub, you can integrate up to 64 devices (sensors, lights, detectors). So 6 devices is no problem.

To integrate the T315, you need the Tapo HUB H100. This allows 64 devices.