# Shelly BLU Door Window (White) Bluetooth Sensor Designed To Detect The Opening And Closing Of A Door Or Window

## Shelly BLU Door Window (White) Bluetooth Sensor Designed To Detect The Opening And Closing Of A Door Or Window

The Shelly BLU Door/Window (White) is a compact Bluetooth sensor, paired with a small magnet, that detects when a door or window is opened or closed, plus built-in tilt and light sensors for richer automation. It is designed to be small and unobtrusive enough to sit discreetly in a window or door frame, communicating over Bluetooth to a Shelly gateway to trigger notifications and scenes.

### Specifications

**SKU**

SHELLY BLU DOOR WINDOW WHITE

**Brand**

Shelly

**Category**

Smart Home

**Key Specs**

Protocol: Bluetooth 4.2 (BLU range, requires a Shelly gateway); Battery: 1x CR2032 3V, up to 5 years life; Sensors: reed switch (open/close), G-sensor (tilt), light sensor; Response time: <100ms; Range: up to 10m indoor/30m outdoor; Dimensions: 35x35x7mm (sensor), 35x12x7mm (magnet); Operating temp: -20°C to 40°C; Colour: White

## Details

- **Price:** 549.0 ZAR
- **Vendor:** Shelly
- **Type:** Smart Home
- **Tags:** Nology, Shelly, Smart Home

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 549.00 ZAR | In stock |

## Images

- Shelly BLU Door Window (White) Bluetooth Sensor Designed To Detect The Opening And Closing Of A Door Or Window

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> Source: [Guards On Duty Shop & Security Guards ](https://guardsondutyshop.co.za/products/shelly-shelly-blu-door-window-white)
> Updated: 2026-07-07