Shelly BLU Button Tough 1 ZB Review: A Rugged Pocket Button That Speaks Bluetooth and Zigbee
The Shelly BLU Button Tough 1 ZB is a small, rugged single-key button rated IP54 that triggers four actions (single, double, triple and long press) over Bluetooth or Zigbee, and it suits Home Assistant and Shelly homes best. Owners praise how solid it feels, how small it is and how easily it joins Home Assistant, using it as a key fob for smart locks and gates or a scene button in the garden. The trade-offs are a Zigbee setup some owners found fiddly, a beep on every press until the buzzer is turned down, and splash rather than full water protection. At a budget-friendly price it is one of the toughest scene buttons for a Zigbee or Shelly setup.
- Home Assistant users
- Shelly relay and gate owners
- Smart lock key fobs
- Garden and garage use
Pros
- Rugged IP54 shell against dust, splashes and shocks
- Single, double, triple and long press on one key
- Bluetooth and Zigbee in one button
- Works with Home Assistant through Zigbee2MQTT and BTHome
- Zigbee Find & Bind for hub-free control of bound devices
- Buzzer confirms presses and helps find it with Beacon mode
- Up to 2 years on a CR2032 battery
Cons
- Zigbee pairing can be fiddly with some coordinators
- Beeps on every press until the buzzer is turned down
- Splash-resistant, not waterproof
- Alexa and the Shelly app need a Shelly gateway
- No Matter or Apple Home support
- No LED and no wall bracket included
Who is the Shelly BLU Button Tough 1 ZB for?
It is a wireless scene button: it switches nothing itself, it sends a message and something else runs the action. Inside are two radios, Bluetooth 5 (LE) broadcasting in the BTHome format and a Zigbee end device, so it can join any Zigbee coordinator or reach the Shelly Smart Control app through a gateway (the Shelly BLU Gateway, or any Shelly Plus, Pro, Gen3 or Gen4 device). The key ring bracket and the IP54 shell make it a pocket remote rather than a wall switch, which is how owners use it: as a fob for a smart lock or a gate, or as a button by the garden door.
What buyers love
The most repeated praise is that it simply works with Home Assistant, over Zigbee or BTHome, and that it is quick to set up. Owners describe it as small and solid, and some prefer it to Shelly's older BLU Button because it feels much sturdier. Real uses in the reviews include opening a front door with a Nuki or Loqed lock, opening a gate through a Shelly Mini Gen3, switching devices in the garden and running scenes without picking up a phone. Four press types on one key let a single button run four different actions.
What to know before you buy
Zigbee here is a standard end device, so it needs a coordinator, and a few owners found the setup fiddly: one had to read the press events directly in ZHA, another could not get it to enter Zigbee pairing in Home Assistant, and one found it too complicated altogether. One owner who could not pair it in the Shelly Smart Control app succeeded through the Shelly BLE Debug app. The buzzer beeps on every press, which surprised one buyer, but its volume can be lowered or switched off. IP54 means dust and splash protection, not submersion, and one owner reported corrosion after outdoor use. There is no LED, no wall bracket in the box, and no Matter or Apple Home support.
Is the Shelly BLU Button Tough 1 ZB worth it?
For a Home Assistant or Shelly home, yes. Few buttons at this budget price combine an IP54 shell, four press actions, Zigbee Find & Bind, Beacon mode for presence automations, a remote locator buzzer and an estimated battery life of up to 2 years on a CR2032. Owners rate it highly, and most low scores come from Zigbee pairing trouble rather than the button itself. If you want a wall-mounted switch or more keys, look at a multi-key remote instead.
Frequently asked questions
Does the Shelly BLU Button Tough 1 ZB need a hub?
It depends on how you use it. Over Zigbee it is an end device that joins an existing Zigbee coordinator, and it can also bind straight to Zigbee devices with Find & Bind. For the Shelly Smart Control app it needs a gateway: the Shelly BLU Gateway or any Shelly Plus, Pro, Gen3 or Gen4 device.
Does it work with Home Assistant?
Yes. Zigbee2MQTT supports this exact model (SBBT-102C) and exposes every press as an action, and over Bluetooth it works with any platform that supports BTHome, Home Assistant included.
Is it waterproof?
It is rated IP54: protected against dust and water splashes from any direction, which suits a garden or garage, but it is not made to be submerged.
How many actions can it trigger?
Four: a single, double, triple and long press, each of which can run its own action or scene. Four and five presses are reserved for Bluetooth and Zigbee pairing.
Can I turn off the beep?
Yes. The buzzer that beeps on each press has an adjustable volume (off, low, medium or high), and with Beacon mode on it can also be rung remotely to find the button.
What battery does it use?
One CR2032 coin cell, included, with an estimated battery life of up to 2 years according to Shelly.







