Key Features
USB Type-A plug
Scripting for local control
Supports MQTT, WebSocket or any other compatible home automation system, like Home Assistant
Wi-Fi range extender
Can scan the Bluetooth network and find all other Bluetooth devices; can trigger actions on third-party devices using scripting
Device identification
Device name: ShellyBLU Gateway
Device model: GWF-KZ01
Firmware model ID: SNGW-BT01
Device SSID: ShellyBluGw-XXXXXXXXXXXX
Short description
ShellyBLU Gateway (the Device) is a smart BLE to Wi-Fi gateway in a USB A dongle.
Main applications
Residential
MDU (Multi Dwelling Units - apartments, condominiums, hotels, etc.)
Light commercial (small office buildings, small retail/restaurant/gas station, etc.)
Government/municipal
University/college
USB Type-A Plug
Connectivity
Wi-Fi
Bluetooth
User interface
Inputs
One (Reset) button
Press and hold for 5 seconds to enable Device access point and Bluetooth connection.
Press and hold for 10 seconds to factory reset the Device.
Outputs
LED indication
Blue light indicator will be on if in AP mode.
Red light indicator will be on if in STA mode and not connected to a Wi-Fi network.
Yellow light indicator will be on if in STA mode and connected to a Wi-Fi network. Not connected to Shelly Cloud or Shelly Cloud disabled.
Green light indicator will be on if in STA mode and connected to a Wi-Fi network and to the Shelly Cloud.
The light indicator will be flashing Red/Blue if OTA update is in progress.
Type | Value |
|---|---|
Physical | |
Size (HxWxD): | 45x20x8 mm / 1.77x0.79x0.21 in |
Weight: | 5 g / 0.18 oz |
Material: | Plastic |
Color: | White |
Environmental | |
Ambient temperature: | -20 °C to 40 °C / -5 °F to 105 °F |
Humidity | 30 % to 70 % RH |
Electrical | |
Power supply: | 5 VDC (from USB Type-A port) |
Power consumption: | < 1 W |
Radio | |
RF band: | 2400 - 2495 MHz |
Max. RF power: | <20 dBm |
Wi-Fi protocol: | 802.11 b/g/n |
Wi-Fi Range: | Up to 30 m / 100 ft indoors and 50 m / 160 ft outdoors |
Bluetooth Protocol: | 4.2 |
Bluetooth Range: | Up to 20 m / 66 ft indoors and 30 m / 100 ft outdoors |
MCU | |
CPU: | ESP32 |
Flash: | 4 MB |
Firmware capabilities | |
Scripting: | Yes |
MQTT: | Yes |
CoAP: | No |
What are the differences between the different generations of Shelly products?
Each new generation adds more power, memory, and features:
Gen 1 offers basic control;
Gen 2 (Plus Series, Mini Series, Pro Series) adds Bluetooth, scripting, and better security;
Gen 3 improves performance, adds Matter (starting from firmware version 1.6.0 or newer) and advanced monitoring;
Gen 4 offers multi-protocol connectivity, featuring Wi-Fi 6, Bluetooth, Zigbee, and Matter.
Can I control the device via Bluetooth?
No, the protocol is used only for device inclusion, allowing for quick and easy setup through the Shelly Smart Control app.
For bluetooth control it is required to have another Bluetooth device such as Shelly BLU Button or Shelly BLU Motion to interact.
Additionally, Shelly devices can function as a BLE gateway, bridging Shelly BLU devices to your Wi-Fi network.
Is it possible to use the device without a hub?
Yes, Shelly devices (except for Wave devices) operate independently without the need for a hub. They connect directly to your Wi-Fi network, and you can control them via the Shelly Smart Control app, web interface, or through integrations with platforms like Google Home, Alexa, Home Assistant and Samsung SmartThings.
Use cases
Unite your smart devices – cloud or locally
Shelly BLU Gateway is a small USB dongle acting as the gateway between Shelly BLU devices and the Shelly Cloud.
Expand your smart ecosystem
When you need to ensure smooth data transfer from your Bluetooth-enabled devices to a wide array of home automation platforms, Shelly BLU Gateway provides a reliable, effective path for communication through MQTT protocol.
Extend your existing Wi-Fi range
In many homes, a single router is too weak to generate a stable signal reaching every room, resulting in dead zones and glitchy connections. Shelly BLU Gateway helps to broadcast your signal up to 30m indoors and 50m outdoors.





