Getting Started with Bluetooth Devices ​
Localkit supports a set of Petkit devices that communicate via Bluetooth Low Energy (BLE). These devices are read-only — Localkit receives data from them but cannot send commands.
How BLE Integration Works ​
Petkit BLE devices (K3, W5) do not connect to Wi-Fi directly. Instead, they broadcast BLE advertisements that are picked up by a nearby Petkit device acting as a BLE proxy.
The proxy device (e.g. a Pura Max) forwards the BLE data to Localkit over MQTT. Localkit then decodes the payload and publishes the device state as Home Assistant entities.
Requirements ​
- At least one Petkit Pura Max configured in Localkit — this acts as the BLE proxy.
- The BLE device must be within Bluetooth range of the proxy device.
- The BLE device must be linked to the proxy in Localkit (set via the device's Link With setting).
Supported Bluetooth Devices ​
| Device | Description |
|---|---|
| Petkit K3 | Odor spray, pairs with and is triggered by the Pura Max |
| Petkit W5 | Smart water fountain, monitored via the Pura Max proxy |
Limitations ​
- No commands can be sent to BLE devices — all entities are read-only.
- If the proxy device goes offline, BLE device state will no longer update.
- Multiple BLE devices can be linked to the same proxy.