



Shelly BLU Door/Window ZB White
Battery powered · No wiring · Needs a gateway (Bluetooth or Zigbee)
In stock · Ships in 1 to 2 business days
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Key features
Dual radio, simultaneous: Bluetooth (BTHome) and Zigbee 3.0 at the same time, not either/or.
Tilt angle plus light sensor: beyond simple open/closed, reads turn-and-tilt angle and ambient light.
Battery powered, no wiring: CR2032, up to 5 years' life.
Gateway needed for the Shelly app: a BLU Gateway or Gen2+ device (Bluetooth) or a compatible Zigbee hub (Zigbee); Home Assistant via BTHome needs neither.
Works with
Home Assistant
BTHome, direct
Shelly Smart Control app
About this product
Shelly BLU Door/Window ZB detects a door or window opening and closing, measures the tilt angle on a turn-and-tilt window, and adds a light sensor for illumination-based automations. It runs on a CR2032 battery Shelly rates at up to 5 years.
It runs Bluetooth 5 (LE) and Zigbee 802.15.4 simultaneously, not one or the other. Over Bluetooth it works directly with Home Assistant via BTHome, and reaches the Shelly Smart Control app through a Shelly BLU Gateway or an existing Shelly Plus/Pro/Gen3/Gen4 device. Over Zigbee it joins any compatible Zigbee 3.0 hub. Regular mode reports on every state change; Beacon mode broadcasts status every 30 seconds at the cost of battery life.
This is a newer, separate model from the single-radio Shelly BLU Door/Window (Bluetooth only, no light sensor), not a colour option of it. Colour: White.
No installation: battery-powered, adhesive/magnet mount, pairs in the app. A Shelly BLU Gateway or Shelly Plus/Pro/Gen3/Gen4 device is needed for the Smart Control app over Bluetooth; a compatible Zigbee hub is needed over Zigbee. Home Assistant works directly via BTHome, no gateway required.
Tech specs
Physical
| Model | SBDW-103C |
| Weight | 10 g sensor + 8 g magnet (with battery) |
| Mounting | Surface / adhesive mount, magnetic sensor pair |
Electrical
| Operating temperature | −20 to 40 °C |
Connectivity
| Bluetooth | Yes |
| Zigbee | Yes |
Compatibility
| Compatibility notes | Dual-radio sensor, simultaneous Bluetooth + Zigbee: Bluetooth needs a Shelly BLU Gateway or Gen2+ device for app access; Zigbee needs a compatible Zigbee 3.0 hub. Not the same device as the existing Shelly BLU Door/Window (Bluetooth-only, no light sensor). Shelly Smart Control app: via a Shelly BLU Gateway, Gen2+ device, or a compatible Zigbee hub |
Warranty
| Manufacturer warranty | 2 Years |
| Free Ohmly extension | +1 Year Free Ohmly Warranty |



