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.
The Shelly BLU Button1 is a battery-powered Bluetooth button for triggering scenes and devices without reaching for your phone, supporting up to 4 separate actions via single, double, triple and long presses. It uses the open BTHome protocol for direct Home Assistant compatibility and runs on a CR2032 battery for up to 2 years.
Up to 4 configurable click actions per button
BTHome protocol for direct Home Assistant compatibility
CR2032 battery rated for up to 2 years
Beacon mode helps you locate the button when needed
This 50A current clamp is the sensor for the Shelly Pro EM and Shelly EM Gen3, rated for a 50A primary current with 1% accuracy. It uses a ferrite core design and is intended specifically for these two Shelly meters rather than the original Shelly EM.
Rated for 50A primary current, 1% accuracy
Ferrite core clamp design
Compatible with Shelly Pro EM and Shelly EM Gen3 only
10mm internal core diameter for standard cable runs
The Shelly BLU Door/Window ZB is a battery-powered sensor for doors, windows and gates that reports open/close events instantly over Bluetooth or Zigbee. It also measures tilt angle on tilt-and-turn windows and ambient light, so it can trigger heating, security or lighting automations as well as simple entry alerts.
Dual Bluetooth 5.0 and Zigbee connectivity in one sensor
Measures tilt angle on tilt-and-turn windows
Up to 5 years battery life from one CR2032
Built-in light sensor for illumination-based automations
