According to the manufacturer, the Tapo H100 requires Wi-Fi for the connection, as it communicates as a smart home hub via Wi-Fi 2/802.11a[^1^]. Without a permanent Wi-Fi network, operation is limited as control via the app requires an internet connection. However, according to the manufacturer's website, the hub supports local Smart Actions without internet access, which means that basic automation between the hub and connected devices (such as the Tapo T110) can also function offline.
However, an app connection is required for the T110's monitoring functions (e.g. door/window contact), which would be possible via your occasional hotspot - the sensor data is then only transmitted when the internet connection is active. However, a stable WLAN is required for permanent notifications or remote access.
Practical solution: - Local alarm function: The hub can remain connected to the T110 and trigger an alarm locally when the door/window is opened (e.g. via built-in siren or paired devices), even without internet. - App access: To set up the devices and for push notifications, you must temporarily activate your hotspot.
For permanent monitoring without Wi-Fi, a device with cellular support (such as the Tapo C501GW) would be more suitable, but the T110 requires the H100 hub, which requires Wi-Fi.
[^1^]: According to in-house data: "Transmission type: WLAN" : "Thanks to the Tapo Hub, your favourite smart actions now work even when the Internet is not available" (Tapo website) Tapo C501GW uses 4G LTE without Wi-Fi, but is not a replacement for the T110/H100.
Summary: Yes, limited use - local alarm functions possible without internet, but app control only with active hotspot. Stable WLAN is recommended for permanent notifications.
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