---
title: Shelly Blu Door Window (White) - Bluetooth Sensor
date: 2025-02-15T08:18:46Z
modified: 2026-05-06T11:02:14Z
permalink: "https://tech.co.za/product/shelly-blu-door-window-white-bluetooth-sensor/"
type: product
status: publish
excerpt: "Detects and reports opening or closing of doors/windows\\n 	\\nMeasures tilt angle and luminosity\\n 	\\nBattery 1 x 3 V CR2032 – included\\n 	\\nBattery life – up to 5 years\\n 	\\nEasy control through the Shelly Smart Control app, BTHome protocol or various platforms\\n 	\\nCan be integrated into automation scenarios and scenes"
wpid: 528909
product_brand:
  - Shelly
product_type:
  - simple
product_visibility:
  - featured
product_cat:
  - Small Appliances
  - Smart Home
featured_image: "https://tech.co.za/wp-content/uploads/2025/02/SHELLY-BLU-DOOR-WINDOW-WHITEaong.png"
---

| Type | Value |
| --- | --- |
| **Physical** |  |
| Size (HxWxD): | 35x35x7 mm ±0.5 mm / 1.38õ1.38õ0.27 in ±0.02 in (Sensor unit) 35x12x7 ±0.5 mm / 1.44õ0.47õ0.27 in ±0.02 in (Magnet) |
| Weight: | 10 g ±1 g / 0.35 ±0.05 oz (Device with the battery) 8 g ±1 g / 0.28 ±0.05 oz (Magnet) |
| Shell material: | Plastic |
| Color: | White, black, brown |
| **Environmental** |  |
| Ambient temperature: | -20 °C to 40 °C / -5 °F to 105 °F |
| Humidity: | 30 % to 70 % RH |
| **Electrical** |  |
| Power supply: | 1x 3 V CR2032 battery (included) |
| Battery life: | 5 years |
| **Sensors** |  |
| Reed switch | Yes |
| G-sensor | Yes |
| Light sensor | Yes |
| **Radio** |  |
| RF band: | 2400 – 2483.5 MHz |
| Max. RF power: | <4 dBm |
| Bluetooth Protocol: | 4.2 |
| Bluetooth Range: | Up to 10 m / 33 ft indoors and 30 m / 100 ft outdoors (Depends on local conditions) |
| **MCU** |  |
| CPU: | EFR32BG22C222F352GM32 |
| **Firmware capabilities** |  |
| Encryption: | AES encryption (CCM mode) |
| Beacon mode: | Yes |