Accessories & Sensors. Everything that isn’t a relay or dimmer: temperature, humidity, water leak, motion, door/window and gas sensors; the Shelly Pill modular sensor system and its add-ons; wall switches, frames and touchscreen displays for physical control; current-clamp and CT accessories for energy monitoring; BLU-series Bluetooth buttons, remotes and the BLU Gateway; and the TRV radiator valve. Sensors are split across WiFi, Bluetooth (BLU) and Z-Wave (Wave) connectivity — check which hub or app ecosystem you’re already running before choosing, since these aren’t interchangeable at the protocol level.
A plug-and-play digital temperature probe for the Shelly Pill, with a 1 metre cable and a wide -55°C to +125°C measuring range. Suited to indoor air monitoring as well as liquids such as water tanks, aquariums or heating systems, with real-time data in the Shelly Smart Control app.
Wide measuring range from -55°C to +125°C
1 metre cable for flexible sensor placement
Digital DS18B20 sensor with 3.5mm jack connection
Well suited to aquariums, greenhouses, server rooms and food storage
A ruggedised version of the BLU Button1 with IP54 shock, splash and dust resistance, built for use in less forgiving locations. It triggers up to four preset actions or scenes over Bluetooth, works natively with Home Assistant via BTHome, and adds sound alerts plus a silent "Hush" mode.
IP54 rated for shock, splash and dust resistance
Sound alerts with a silent "Hush" mode option
Works with Plus, Pro and Gen3 devices as gateway
Beacon-based 'Find me' mode helps locate a misplaced button
A Wi-Fi temperature and humidity sensor described by Shelly as the world's first of its kind to last over 18 months on a single battery. It runs on one CR123A battery (not included) and reports readings over standard Wi-Fi rather than a proprietary hub protocol.
Up to 18 months battery life on one CR123A
Temperature range -40°C to +60°C, accurate to ±1°C
Humidity range 0-100%, accurate to ±5%
Ultra-low static power draw of ≤70µA extends battery life
A compact battery sensor that reports open/close status on doors, windows and gates, with dual Bluetooth and Zigbee connectivity for integration into a wide range of smart home systems. It also measures tilt angle on tilt-and-turn windows and ambient light levels, running up to five years on one CR2032 battery.
Dual Bluetooth 5.0 and Zigbee connectivity in one sensor
A battery-powered Bluetooth button for triggering up to four preset scenes or devices without needing a phone. It uses the BTHome protocol for compatibility with Home Assistant, and includes beacon mode for locating the button plus location-based automation triggers. Runs on a single CR2032 battery for up to two years.
Up to 4 preset actions via different click combinations
Native BTHome protocol support for Home Assistant
CR2032 battery lasts up to 2 years
Beacon mode helps you locate the button when needed
An extension cable for the Shelly Flood Gen4 water leak sensor, letting you monitor larger or hard-to-reach areas such as basements, kitchens, garages and laundry rooms. Multiple cables can be linked together to extend detection coverage up to 150 metres, with leak detection running along the entire cable length.
Extends Shelly Flood Gen4 detection up to 150m when chained
Detects water leaks along the full cable length
2m cable, direct plug-in compatibility with Flood Gen4
Ideal for flexible placement in hard-to-reach or awkward areas
Shelly BLU Wall Switch 4 is a four-button Bluetooth remote that can be mounted to a wall, fitted into a compatible wall-plate adapter, or simply carried around. Each button supports single, double, triple and long press, giving up to sixteen distinct actions for lighting, blinds, garage doors or scenes.
16 possible actions across 4 buttons via multi-click
Fits Busch-Jaeger, Gira/Merten and Legrand wall-plate adapters
Can be wall-mounted or carried as a portable remote
Long battery life with strong encrypted communication
The Shelly BLU Gateway is a USB dongle that bridges Shelly BLU Bluetooth devices into the wider Shelly ecosystem, forwarding their signals to the cloud or to non-Bluetooth Shelly devices locally. It supports MQTT, WebSocket and Home Assistant, and can scan for and trigger actions on third-party Bluetooth devices via scripting.
USB Type-A dongle, bridges BLU devices to non-BT Shelly units
Supports MQTT, WebSocket and Home Assistant integration
Can scan and trigger third-party Bluetooth devices via scripting
The Shelly H&T USB Power add-on lets you run a Shelly H&T sensor permanently from mains power instead of its battery, using a standard micro USB cable and any 5V power adapter. It's a simple accessory for installations where continuous power is preferable to battery replacement.
The LinkedGo ST802-B is a Shelly-powered smart thermostat for underfloor heating, fan coil units and ventilation systems, with an analogue output for controlling 10V DC fans directly. It adds RS485/MODBUS support for integration into larger centralised HVAC systems, plus an anti-freeze function and built-in humidity sensing.
RS485/MODBUS support for centralised HVAC systems
Analogue output drives 10V DC ventilation fans directly
Anti-freeze function protects pipes during long absences
Built-in humidity sensing with temperature and humidity offsets
Shelly EM with 50A and 120A clamps is a two-channel Wi-Fi energy meter for monitoring individual circuits, appliances or solar generation, with built-in contactor control for automating high-power loads. It stores 365 days of energy history on-device and includes overpower shutdown and consumption limit features.
Two metering channels, up to 120A each
365 days of built-in energy history storage
Contactor control output plus overpower shutdown
Also monitors electricity generated from solar panels
The Shelly Button Add-on is a surface-mounted enclosure for housing a compatible Shelly relay or dimmer, letting you add smart control to a lamp, fan or other device without opening walls or fitting a new back box. It ships with pre-installed colour-coded wiring and an integrated button, but needs a Shelly relay or dimmer inside to work.
Surface-mounted, no wall box or in-wall install needed
Pre-installed colour-coded wiring for faster fitting
Compatible with Shelly Gen1, Plus, Gen3, Gen4 and Mini devices
Requires a compatible Shelly relay or dimmer inside
Shelly BLU Button1 is a small Bluetooth button for triggering scenes and devices without reaching for your phone, supporting up to four pre-set actions and location-based automation via Beacon mode. It's compatible with Home Assistant and other BTHome devices, and designed to pair with Shelly Plus and Pro devices.
Shelly Wave H&T is a temperature and humidity sensor using Z-Wave 800 series technology, supporting both standard Z-Wave mesh and Z-Wave Long Range for direct communication with a hub over 400m line of sight. It runs on a CR123A battery for up to two years and needs a Z-Wave gateway to set up.
Supports Z-Wave Long Range up to 400m (line of sight)
Z-Wave 800 series chipset with S2 authenticated security
Up to 2 years' battery life from one CR123A cell
SmartStart enables automatic inclusion into your Z-Wave network
Shelly Flood Gen4 is a leak detection sensor for basements, kitchens and utility rooms, using an extendable sensor cable to monitor along a surface rather than a single point. It's Matter certified with Wi-Fi, Bluetooth and Zigbee, offers both Flood and Rain detection modes, and runs on AA batteries with a local buzzer.
Extendable leak sensor cable, coverage up to 150m
Flood and Rain detection modes for indoor/outdoor use
The Shelly BLU Button Tough 1 ZB is a rugged, IP54-rated smart button for indoor or outdoor use, giving instant one-press control over lights, appliances, blinds or scenes. It connects via Bluetooth or Zigbee, supports up to four distinct click actions, and runs on a single CR2032 battery for up to two years.
IP54-rated against dust, splashes and shocks
Up to four actions via single/double/triple click and long press
Response time under one second
Dual Bluetooth and Zigbee connectivity for wide compatibility
