---
product_id: 541528781
title: "Shelly Blu Door/Window Black - Smart Bluetooth Montion Sensor Alarm, Home Security, Remote Control Detector, App Alerts, Alexa & Google Home, Gateway Required, Scene Activation, Lux Sensor"
brand: "shelly"
price: "€ 66.57"
currency: EUR
in_stock: true
reviews_count: 11
category: "Shelly"
url: https://www.desertcart.nl/products/541528781-shelly-blu-door-window-black-smart-bluetooth-montion-sensor-alarm
store_origin: NL
region: Netherlands
---

# Lux sensor for light detection Bluetooth 5.0 connectivity 5-year battery life Shelly Blu Door/Window Black - Smart Bluetooth Montion Sensor Alarm, Home Security, Remote Control Detector, App Alerts, Alexa & Google Home, Gateway Required, Scene Activation, Lux Sensor

**Brand:** shelly
**Price:** € 66.57
**Availability:** ✅ In Stock

## Summary

> 🔒 Stay ahead of threats with Shelly Blu — smart security that blends in, stands out, and never quits.

## Quick Answers

- **What is this?** Shelly Blu Door/Window Black - Smart Bluetooth Montion Sensor Alarm, Home Security, Remote Control Detector, App Alerts, Alexa & Google Home, Gateway Required, Scene Activation, Lux Sensor by shelly
- **How much does it cost?** € 66.57 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/541528781-shelly-blu-door-window-black-smart-bluetooth-montion-sensor-alarm)

## Best For

- shelly enthusiasts

## Why This Product

- Trusted shelly brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Ultra-Long Battery Life:** Forget frequent recharges with up to 5 years on a single CR2032 battery.
- • **Discreet & Compact Design:** Sleek black sensor fits invisibly on any door or window frame.
- • **Seamless Smart Integration:** Effortlessly control and monitor via Shelly app, Alexa, Google Home, or SmartThings.
- • **Instant Alerts & Automation:** Receive real-time notifications and trigger smart home scenes instantly.
- • **Reliable Bluetooth Connectivity:** Fast response under 100ms ensures you’re always in the know.

## Overview

The Shelly Blu Door/Window Black is a smart Bluetooth motion sensor designed for professional-grade home security. Featuring a compact design, it detects door/window openings, tilt, and ambient light with a lux sensor. Powered by a long-lasting CR2032 battery, it offers up to 5 years of operation with rapid response times under 100ms. Compatible with Shelly’s Smart Control app and voice assistants like Alexa and Google Home, it requires a Shelly BLU Gateway or compatible Shelly device for full functionality. Ideal for seamless smart home automation and reliable remote monitoring.

## Description

Shop Shelly Blu Door/Window Black - Smart Bluetooth Montion Sensor Alarm, Home Security, Remote Control Detector, App Alerts, Alexa & Google Home, Gateway Required, Scene Activation, Lux Sensor. Free delivery on eligible orders of £20 or more.

Review: Work well - Low profile and work well
Review: Excellent sensors - Excellent sensors. Very long battery life using BLE technology. Used one of these sensors to replace a rechargeable Z-Wave sensor that had to be recharged every four months, necessitating reaching it via stepladders, a real pain. The new Shelly sensor has been operating for over three months now and remaining (cheap) battery life is still 95% Fast response for a sensor at this price point. Usual high Shelly quality. Works with the Shelly app or with Home Assistant using a Bluetooth proxy such as the one built in to many Shelly devices.

## Features

- 𝗦𝗺𝗮𝗿𝘁 𝗘𝗻𝘁𝗿𝘆 𝗠𝗼𝗻𝗶𝘁𝗼𝗿𝗶𝗻𝗴: Detects and reports door/window openings, tilt levels, and luminosity for reliable automation
- 𝗨𝗹𝘁𝗿𝗮-𝗖𝗼𝗺𝗽𝗮𝗰𝘁 𝗗𝗲𝘀𝗶𝗴𝗻: Discreet and easy to install in any room or door/window frame
- 𝗟𝗼𝗻𝗴 𝗕𝗮𝘁𝘁𝗲𝗿𝘆 𝗟𝗶𝗳𝗲 & 𝗙𝗮𝘀𝘁 𝗥𝗲𝘀𝗽𝗼𝗻𝘀𝗲: Runs up to 5 years on a CR2032 battery with reaction time under 100 ms
- 𝗚𝗮𝘁𝗲𝘄𝗮𝘆 𝗥𝗲𝗾𝘂𝗶𝗿𝗲𝗱: A Shelly BLU Gateway or any Shelly Plus, Pro, Gen3 or Gen4 device (excluding sensors) is needed to use this device with the Shelly Smart Control app or any home automation system
- 𝗔𝗽𝗽 & 𝗩𝗼𝗶𝗰𝗲 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻: Control from anywhere using the Shelly Smart Control app or voice assistants like Alexa, Google Home, or SmartThings - 𝗕𝗹𝘂𝗲𝘁𝗼𝗼𝘁𝗵 𝗚𝗮𝘁𝗲𝘄𝗮𝘆 𝗥𝗲𝗾𝘂𝗶𝗿𝗲𝗱

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C717KCK5 |
| Average Battery Life | 5 years |
| Batteries | 1 CR2430 batteries required. (included) |
| Batteries Required? | Yes |
| Batteries included? | Yes |
| Battery Capacity | 5 years |
| Battery Cell Type | Lithium |
| Battery description | 1 CR2430, 1 CR2032, 3 Lithium-Ion |
| Best Sellers Rank | 122,059 in DIY & Tools ( See Top 100 in DIY & Tools ) 110 in Home Security Door & Window Sensors |
| Colour | Black |
| Customer Reviews | 3.8 3.8 out of 5 stars (1,209) |
| Date First Available | 1 July 2023 |
| Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. |
| Included Components | 1x Shelly Blu Door/Window Black |
| Item Package Quantity | 1 |
| Item Weight | 22 g |
| Item model number | 3800235266618 |
| Manufacturer | Shelly Europe |
| Part Number | 661 |
| Plug profile | Wall Mount |
| Power Source | Battery Powered |
| Product Dimensions | 9.5 x 2 x 5 cm; 22 g |
| Size | 1er Pack |
| Special Features | 1 x 3 V CR2032 Battery (Battery Included) |
| Temperature Range | 1E+2 Degrees Fahrenheit |

## Product Details

- **Brand:** Shelly
- **Colour:** Black
- **Item weight:** 22 Grams
- **Maximum range:** 30 Metres
- **Power source:** Battery Powered

## Images

![Shelly Blu Door/Window Black - Smart Bluetooth Montion Sensor Alarm, Home Security, Remote Control Detector, App Alerts, Alexa & Google Home, Gateway Required, Scene Activation, Lux Sensor - Image 1](https://images-na.ssl-images-amazon.com/images/G/01/x-locale/common/grey-pixel.gif)

## Questions & Answers

**Q: Shelly BLU Door/Window inclusion failed. What should I do?**
A: Download the Shelly BLE Debug APP and proceed with OTA FW update from there. Activate the Bluetooth gateway, and then retry inclusion to Shelly Smart Control app. For further help, turn to support.shelly.cloud.

**Q: Shelly BLU Door/Window battery is draining quickly?**
A: The device might have stuck in bootloader mode. Remove it from your Bluetooth settings and perform manual update. Insert the battery into your device and then run slow OTA update in Shelly Debug App.

**Q: Do I need a gateway for my Shelly BLU Door/Window?**
A: To use this device with the Shelly Smart Control app, a gateway is required. Compatible gateways are Shelly BLU Gateway, or any Shelly Plus, Pro or Gen3 device (excluding sensors).

**Q: Sensor fails to detect correct door/window position. What should I do?**
A: Ensure your device's firmware is up-to-date and that it's installed level, not tilted. For further assistance, contact our support team at support.shelly.cloud.

**Q: Shelly BLU Motion is unresponsive after a firmware update?**
A: Remove ("Forget") Shelly BLU Door/Window from Bluetooth settings. Open Shelly BLE Debug App, insert the battery, and select the device. Start a slow OTA update. If it doesn’t appear, press the button briefly before reinserting the battery.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Work well
*by B***Y on 20 September 2025*

Low profile and work well

### ⭐⭐⭐⭐⭐ Excellent sensors
*by X***S on 6 January 2025*

Excellent sensors. Very long battery life using BLE technology. Used one of these sensors to replace a rechargeable Z-Wave sensor that had to be recharged every four months, necessitating reaching it via stepladders, a real pain. The new Shelly sensor has been operating for over three months now and remaining (cheap) battery life is still 95% Fast response for a sensor at this price point. Usual high Shelly quality. Works with the Shelly app or with Home Assistant using a Bluetooth proxy such as the one built in to many Shelly devices.

### ⭐ It did not work
*by N***S on 22 September 2024*

The button to switch it on did not work. I had to return it to the store.

## Frequently Bought Together

- Shelly Blu Door/Window Black - Smart Bluetooth-Operated Montion Sensor Alarm, Home Security Remote Control Detector, App alerts, Alexa & Google Home Compatibility, Scene activation, Lux Sensor
- Shelly BLU H&T Black - Bluetooth Temperature & Humidity Sensor, Smart Indoor/Outdoor Thermometer and Hygrometer, IP54 rated, Remote control with app, Free data storage

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---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-24*