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Shelly BLU Button Tough 1 ZB

An IP54 single-key button with four press actions, a buzzer for feedback and two radios, best in a Home Assistant or Shelly home.

4.7
12 ratings

4.7 vs the 4.2 average of 28 buttons we track

Currently unavailable on Amazon USA

As an Amazon Associate I earn from qualifying purchases
Launch Year: 2025

Model: SBBT-102C

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Our review

Shelly BLU Button Tough 1 ZB Review: A Rugged Pocket Button That Speaks Bluetooth and Zigbee

The verdict

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.

Best for
  • 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.

At a glance

Summary

Everything this button supports, grouped by category.

Size & Materials
1.7 × 1.7 × 0.5 in 42 × 42 × 13 mm0.5 oz 15 gWeather Resistance (IP54)Available in colors
Controls
Buttons (1)Double PressLong PressTriple Press or MoreDimming Control
Connectivity
BluetoothZigbee (Zigbee Hub required)
Integrations
Alexa (Shelly gateway required)Home Assistant
Features
Direct Device ControlSound FeedbackLow Battery AlertsOTA
Company
Shelly logo

Shelly

4.4/ 5 avg ratingBulgaria flagHeadquartered in Bulgaria

Shelly, based in Bulgaria, makes compact smart relays, switches, plugs and sensors that fit behind existing wall switches and outlets to automate almost any home wiring. Its devices are popular with advanced users for offering local control, a built-in web interface, MQTT and broad integration with Home Assistant, Alexa and Google Home. Shelly is a favorite for retrofitting smart control without replacing fixtures.

Full specifications

Every spec, organized

Browse the full breakdown by category. Tap the on any row for what it means, or the for sources and documentation.

Size & Materials
Dimensions

1.7 × 1.7 × 0.5 in 42 × 42 × 13 mm

Weight

0.5 oz 15 g

Weather Resistance

IP54

Certified IP54: protected against dust, water splashes and shocks, for indoor and outdoor use.

Available in colors

YES

Black, Ivory, Mocha

Power
Battery Type

1x CR2032

Battery Life

2 years

Rechargeable Battery

NO

Battery-Free (Kinetic)

NO

Controls
Buttons

1

Rotary Dial

NO

Motion Gestures

NO

Double Press

YES

Long Press

YES

Triple Press or More

YES

The button reports single, double, triple and long press, four actions in total; 4 and 5 presses are reserved for pairing.

Dimming Control

YES

Shelly lists dimming or brightening lights with a long press as a use case. Over Zigbee it only sends Toggle and Recall Scene, so hold-to-dim runs through Shelly devices or a hub rather than Zigbee binding.

Mounting
Wall Mountable

NO

A pocket button with a key ring bracket; the box holds only the button and its guide, with no adhesive, bracket or screws.

Wall Plate Included

NO

Magnetic Mount

NO

Connectivity
2.4 GHz WiFi

NO

Bluetooth

YES

Bluetooth 5 (LE), broadcasting in the BTHome format. The Shelly Smart Control app needs a gateway (Shelly BLU Gateway, or any Shelly Plus, Pro, Gen3 or Gen4 device).

Z-Wave

NO

Zigbee

Zigbee Hub required

Zigbee (802.15.4) end device, so it joins an existing Zigbee coordinator.

Thread Protocol

NO

Other

NO

Integrations
Google Home

?

Alexa

Shelly gateway required

A press can start an Alexa routine through a Shelly Smart Control scene with the Alexa Notify action, which needs the button in the Shelly account through a gateway (Shelly BLU Gateway, or any Shelly Plus, Pro, Gen3 or Gen4 device).

Apple HomeKit

NO

The device documentation lists only Bluetooth (BTHome) and Zigbee, with no Matter or HomeKit profile.

Samsung SmartThings

?

Home Assistant

YES

Zigbee2MQTT supports this exact model (SBBT-102C), exposing every press as an action, and the button works with any platform that supports BTHome, Home Assistant included.

Matter

NO

The device documentation lists only Bluetooth 5 LE and Zigbee, with no Matter profile.

Features
Direct Device Control

YES

Over Zigbee it supports Find & Bind on three endpoints, sending Toggle and Recall Scene commands straight to bound devices with no hub in between.

LED Indicator

NO

It has no LED: a buzzer confirms each press instead.

Sound Feedback

YES

A buzzer beeps once per press, plays melodies for pairing, and can be rung remotely for 30 seconds (Find My Device, with Beacon mode on). Its volume is adjustable or can be turned off.

Low Battery Alerts

YES

Reports its battery percentage over Zigbee and in its BTHome broadcasts.

OTA

YES

Firmware is updated over the air from the Shelly Smart Control app or the Shelly BLE Debug app.

Automations

YES

Presses trigger scenes and actions in the Shelly Smart Control app, on paired Shelly devices, or in any Zigbee or BTHome hub. Beacon mode adds presence-based automations.

History Records

?

Required to work

You need a Zigbee hub for this

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Why it needs a Zigbee coordinator

The Shelly BLU Button Tough 1 ZB speaks Zigbee, not Wi-Fi. On its own it cannot reach your phone, your voice assistant or any automation: it needs a Zigbee coordinator to join. These are the ones in our catalog that can run it.

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