---
product_id: 588232079
title: "Blu Door/Window Black | Bluetooth Operated Sensor | Home Automation | iOS Android App | Alexa & Google Home Compatibility | Lux and Tilt Angle Measurement | Set Custom Activation Scenes"
brand: "shelly"
price: "€ 34.76"
currency: EUR
in_stock: true
reviews_count: 13
category: "Shelly"
url: https://www.desertcart.pt/products/588232079-blu-door-window-black-bluetooth-operated-sensor-home-automation-ios
store_origin: PT
region: Portugal
---

# Tilt angle + lux sensor 30m Bluetooth range 5-year battery life Blu Door/Window Black | Bluetooth Operated Sensor | Home Automation | iOS Android App | Alexa & Google Home Compatibility | Lux and Tilt Angle Measurement | Set Custom Activation Scenes

**Brand:** shelly
**Price:** € 34.76
**Availability:** ✅ In Stock

## Summary

> 🏠 Stay ahead of intruders and inefficiency with Shelly Blu — your sleek, smart sentinel!

## Quick Answers

- **What is this?** Blu Door/Window Black | Bluetooth Operated Sensor | Home Automation | iOS Android App | Alexa & Google Home Compatibility | Lux and Tilt Angle Measurement | Set Custom Activation Scenes by shelly
- **How much does it cost?** € 34.76 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/588232079-blu-door-window-black-bluetooth-operated-sensor-home-automation-ios)

## 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

- • **Effortless 5-Year Power:** Forget frequent battery swaps with a long-lasting lithium-ion cell that keeps your smart home running smoothly.
- • **Energy-Saving Automation:** Automatically adjust heating, cooling, or lighting when doors or windows open—cut costs and carbon footprint in style.
- • **Total Smart Home Integration:** Compatible with Alexa, Google Home, iOS & Android apps—control and customize your home security scenes effortlessly.
- • **Precision Tilt & Light Sensing:** Monitor door/window status with advanced tilt angle and luminosity detection for smarter automation triggers.
- • **Seamless Bluetooth Connectivity:** Stay connected up to 30 meters away—perfect for large homes or multi-room setups without WiFi dependency.

## Overview

Shelly Blu Door/Window Black is a compact, Bluetooth-operated sensor designed for smart home security and automation. Featuring a 5-year battery life, 30-meter Bluetooth range, and advanced tilt angle plus lux measurement, it integrates seamlessly with Alexa, Google Home, and mobile apps. Ideal for doors, windows, and more, it enables custom automation scenes to enhance home security and energy efficiency.

## Description

Buy Shelly Blu Door/Window Black | Bluetooth Operated Sensor | Home Automation | iOS Android App | Alexa & Google Home Compatibility | Lux and Tilt Angle Measurement | Set Custom Activation Scenes: Sensors - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Excellent sensor! - Installed along side a Shelly Gen4 smartswitch to report status of garage door. Works perfectly. Shelly automation products are great quality and app is excellent albeit a bit complicated at first.
Review: Works Great for Me - Using this little bluetooth contact sensor in the mechanical room of my basement, on the lid of my washing machine. It's part of an automation on Home Assistant that ends a "nag" if I haven't removed my wet laundry after a cycle. If the lid is open for greater than 20 seconds, the nag turns off. The lid closes, the nag is reset for the next load. This was very easy to install and it's quite small. In my case, it melds in quite well with my washing machine. Because I have bluetooth proxies everywhere, I have zero connection issues. It was definitely a good value for the money, and enables me to use a non-Zigbee device in a location that sometimes gets Zigbee-cranky.

## Features

- Shelly Blu Door/Window Black is a Bluetooth-operated sensor, with a long-lasting battery of up to 5 years, that can measure tilt angle and luminosity. Shelly Blu Door/Window has a compact and stylish design that allows for easy installation on doors, windows, safety gates, garage doors, and more.
- Protect your home, even when you're away - Always be informed of any unwanted guests! Simply place Shelly BLU Door/Window on your front door, balconies, windows, or garage door, and receive a notification if someone opens them while you are away. But that’s not all! Shelly BLU Door/Window can be used as part of your security system using automation scenarios or scenes.
- Let no energy go to waste - Shelly BLU Door/Window can also contribute to your energy efficiency efforts. By connecting it to other devices, you can automate the adjustment of heating, cooling, or lighting based on the door or window's open state. For example, when a window is opened, the system can automatically turn off the heating to conserve energy.
- Shelly Customer Service - Shelly is one of the fastest-growing Smart Home brands in the world with devices, providing solutions for the automation of private homes, buildings and businesses. We provide our customers with professional support and a 2 years device warranty.
- Shelly Smart Control App will help you control your Shelly devices remotely and will send notifications for all automated events in your home. You can easily configure devices and manage their settings individually, or you can create personalized scenes by combining Shelly devices to trigger certain actions in your home automation.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C717KCK5 |
| Batteries | 1 CR2430 batteries required. (included) |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Lithium Manganese Dioxide |
| Battery Description | Lithium-Ion |
| Battery Life | 5 years |
| Best Sellers Rank | #159 in Home Security Systems |
| Brand | Shelly |
| Color | Black |
| Compatible Devices | Laptop, Smartphone, Tablet |
| Customer Reviews | 3.8 3.8 out of 5 stars (1,245) |
| Date First Available | September 1, 2023 |
| Description Pile | Lithium-Ion |
| Global Trade Identification Number | 03800235266618 |
| Included Components | 1 x Shelly Blu Door/Window - Black, User Manual |
| Item Package Quantity | 1 |
| Item Weight | 0.776 ounces |
| Item model number | 3800235266618 |
| Manufacturer | Shelly |
| Maximum Range | 30 Meters |
| Mounting Type | Wall Mount |
| Number of Batteries | 1 CR2430 batteries required. (included) |
| Operating Temperature | 104 Degrees Fahrenheit |
| Part Number | 661 |
| Power Source | Battery Powered |
| Product Dimensions | 1.38"D x 1.38"W x 0.27"H |
| Recommended Uses For Product | Door Sensor, Window Sensor, Advanced sensor |
| Smart Home Compatibility | Smart Home Compatible |
| Temperature Range | 1E+2 Degrees Fahrenheit |
| Upper Temperature Rating | 104 Degrees Fahrenheit |

## Product Details

- **Brand:** Shelly
- **Color:** Black
- **Item Weight:** 22 Grams
- **Maximum Range:** 30 Meters
- **Power Source:** Battery Powered

## Images

![Blu Door/Window Black | Bluetooth Operated Sensor | Home Automation | iOS Android App | Alexa & Google Home Compatibility | Lux and Tilt Angle Measurement | Set Custom Activation Scenes - Image 1](https://m.media-amazon.com/images/I/71ObDrs1bdL.jpg)

## Available Options

This product comes in different **Color** options.

## 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 be stuck in bootloader mode. Remove it from your Bluetooth settings and perform manual update. Insert the battery into your device and then run a slow OTA update in the 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 the 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 the 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

### ⭐⭐⭐⭐⭐ Excellent sensor!
*by K***N on January 21, 2026*

Installed along side a Shelly Gen4 smartswitch to report status of garage door. Works perfectly. Shelly automation products are great quality and app is excellent albeit a bit complicated at first.

### ⭐⭐⭐⭐⭐ Works Great for Me
*by B***P on September 2, 2025*

Using this little bluetooth contact sensor in the mechanical room of my basement, on the lid of my washing machine. It's part of an automation on Home Assistant that ends a "nag" if I haven't removed my wet laundry after a cycle. If the lid is open for greater than 20 seconds, the nag turns off. The lid closes, the nag is reset for the next load. This was very easy to install and it's quite small. In my case, it melds in quite well with my washing machine. Because I have bluetooth proxies everywhere, I have zero connection issues. It was definitely a good value for the money, and enables me to use a non-Zigbee device in a location that sometimes gets Zigbee-cranky.

### ⭐ Defective Sensors
*by M***O on September 13, 2025*

I ordered two door/windows sensors and they both arrived with dead batteries. After replacing the batteries and trying to configure them for over an hour I finally gave up. No help from their costumer service at all. I do not recommend these sensors.

## 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 Portugal*
*Store origin: PT*
*Last updated: 2026-03-14*