Local Smart Home Guide
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sensor

Shelly BLU Motion

Shelly

budget local: goodLocal control for everyday use; a few features may still touch the cloud. Bluetooth
Price
budget band last checked Mar 23, 2026
HA fit
good
Works offline
yes
Setup
easy
Hub needed
yes
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Shelly BLU Motion - Budget Bluetooth motion sensor with lux sensing

Quick verdict

A no-fuss Bluetooth motion sensor that broadcasts motion and ambient light level as BTHome advertisements, which Home Assistant picks up through its own Bluetooth adapter or a Bluetooth proxy. PIR detection is reliable for walk-through motion in hallways and bathrooms. Shelly rates the CR2477 cell for up to five years, and the price is low enough to put one in every room. Just make sure a receiver sits within Bluetooth range, which Shelly puts at about 10 m indoors.

Standout: Budget Bluetooth motion sensor with lux sensing that reaches Home Assistant over BTHome, with no vendor hub in the path.

Notes last checked Mar 23, 2026.

Compatibility snapshot

Home Assistant goodReliable local integration with minor caveats (a hub, manual config, or polling). Core function works locally.
Apple Home noneNo official support on this platform.
Google Home noneNo official support on this platform.
Alexa noneNo official support on this platform.
Works offline yes
Setup easy
Extra hub needed yes
Power battery

Local control facts

  • Home Assistant: bthome integration, Local Push (home-assistant.io, checked Sep 10, 2026)

Why it stands out

  • compact battery-powered motion sensor with built-in lux (light level) sensing
  • long battery life from Bluetooth Low Energy - no wiring, no USB charging
  • fully local over BTHome; Home Assistant hears it through its own Bluetooth adapter or any Bluetooth proxy, with no vendor hub in the path

Reasons to hesitate

  • something within Bluetooth range has to hear it: the Home Assistant host's own adapter, or a Bluetooth proxy such as an ESPHome node, a Shelly Gen2+ device or the Shelly BLU Gateway
  • Bluetooth range is limited, so gateway placement matters for reliable detection
  • PIR-based detection has the usual blind spots - works best for cross-path motion, not sitting still

Best for

  • Home Assistant users building motion-activated lighting or presence-based automations on a budget
  • hallways, bathrooms, and closets where you want lights to turn on automatically

Avoid if

  • your Home Assistant host has no Bluetooth adapter and you do not want to set up a Bluetooth proxy
  • you need presence detection for stationary occupancy - PIR only detects movement

Privacy and local-control notes

Bluetooth motion sensor with no cloud dependency. Detection events are broadcast locally as BTHome advertisements to whatever Bluetooth receiver is listening. No internet required for operation.

Home Assistant support: supported · integration path: BTHome (official core integration, Local Push) via the Home Assistant host's Bluetooth adapter or a Bluetooth proxy such as an ESPHome node or a Shelly Gen2+ device.

Built with ESPHome - see the ESPHome guide for Home Assistant →

Buying reality check

Price notes: Among the cheapest motion sensors available. Factor in a Bluetooth proxy (the Shelly BLU Gateway is about $23, and any ESPHome board will do) only if your Home Assistant host has no Bluetooth adapter.

Compare side by side: see sensor comparisons →

What changed for this product

  1. · Corrected

    Shelly follow-up audit and 16 more corrections

    Six more Shelly products went through the same source check as the rest of the catalog. The Plus i4’s inputs are mains-level, not dry-contact (the DC model is the low-voltage one). The BLU Motion, BLU Button1 and BLU Door/Window pages no longer say a Shelly gateway is required: a Bluetooth adapter on the Home Assistant host or any Bluetooth proxy hears them directly. The Wall Display XL mounts to a standard switch box, and its dashboard claim now says exactly what Shelly ships: a Home Assistant page that loads a dashboard URL, deprecated and then restored in firmware 2.7.0. Five manufacturer links that had gone dead were replaced, the ZEN04 price was refreshed, the Tedee GO page names the official tedee integration as its non-Thread local path, and the G6 Instant page notes its IPX5 rating.

From the change log and the news briefs that name this product.

Verified against

  • Shelly US store: BLU Motion (in stock at $25.99; CR2477 cell included, battery life up to 5 years; PIR yes, light sensor yes; Bluetooth 4.2, up to 10 m indoors and 30 m outdoors; AES encryption; BTHome named on the page; Shelly BLU Gateway cross-sold at $22.99; a gateway is needed only for the Shelly Smart Control app) · checked Sep 7, 2026
  • Shelly EU store: BLU Motion (in stock at 20.90 EUR; same key features) · checked Sep 7, 2026
  • Home Assistant integration docs (Shelly) (Shelly BLU devices are not supported by the Shelly integration; use BTHome) · checked Sep 7, 2026
  • Home Assistant integration docs (BTHome) (official core integration, Local Push) · checked Sep 7, 2026
  • Home Assistant integration docs (Bluetooth) (a Bluetooth adapter on the host receives advertisements directly; remote adapters (ESPHome, Shelly Gen2+, SMLIGHT) are the alternative) · checked Sep 7, 2026

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