---
product_id: 556228744
title: "Shelly 3800235266618 BLU Black Bluetooth Door/Window Sensor"
brand: "shelly"
price: "$59.05"
currency: USD
in_stock: true
reviews_count: 5
category: "Shelly"
url: https://www.desertcart.us/products/556228744-shelly-3800235266618-blu-black-bluetooth-door-window-sensor
store_origin: US
region: United States of America
---

# Response <100ms 30m Bluetooth range 5-year battery life Shelly 3800235266618 BLU Black Bluetooth Door/Window Sensor

**Brand:** shelly
**Price:** $59.05
**Availability:** ✅ In Stock

## Summary

> 🔒 Stay ahead of the curve with Shelly BLU — security that’s smart, sleek, and seriously fast.

## Quick Answers

- **What is this?** Shelly 3800235266618 BLU Black Bluetooth Door/Window Sensor by shelly
- **How much does it cost?** $59.05 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/556228744-shelly-3800235266618-blu-black-bluetooth-door-window-sensor)

## 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

- • **Smart Sensor Suite:** Integrated LUX and tilt sensors add a new dimension to your home security and automation.
- • **Voice & Scene Integration:** Sync with voice assistants and create custom automation scenes for a truly smart lifestyle.
- • **Hub-Free Bluetooth Control:** Manage your sensor seamlessly via the Shelly app or web—no extra hubs required.
- • **Instant Alerts, Zero Delay:** Experience lightning-fast notifications with sub-100ms response time—never miss a moment.
- • **Effortless 5-Year Battery Power:** Set it and forget it with a lithium battery that lasts up to five years, minimizing maintenance.

## Overview

The Shelly 3800235266618 BLU Black Bluetooth Door/Window Sensor offers ultra-fast Bluetooth connectivity with a response time under 100 milliseconds and a robust 30-meter range. Powered by a long-lasting lithium battery, it delivers up to five years of maintenance-free operation. Featuring built-in LUX and tilt sensors, it supports advanced scripting and scene activation through the Shelly app, enabling hub-free, voice-controlled smart home security compatible with both Android and iOS devices.

## Description

Shelly BLU door/window is a Bluetooth controlled door/window sensor functions. Bluetooth controlled: Faster response, longer battery life and easy recording. Immediate Response: The sensor has a response time of less than 100 ms. Long-lasting battery: battery life up to five years, depending on daily use. Built-in sensors: The Shelly BLU Door/Window has built-in LUX and tilt measurement sensors. Scripting: Use the scripting features on your Shelly Plus and Pro devices to create complex automations. Scene activation: Combine Shelly BLU Door/Window with your other Shelly devices and set custom scenes.

Review: Work well - Low profile and work well
Review: Au top. - Parfait, comme la plus part des produits shelly.

## Features

- What is this product? This is a Bluetooth door/window sensor. It detects and reports the opening or closing of doors/windows.
- What are the benefits? Bluetooth controlled, immediate response, long-lasting battery, battery life of up to 5 years, depending on daily use; integrated sensors - Shelly BLU door/window has integrated LUX and tilt measurement sensors; scripting; scene activation
- Shelly app. Hub-free control via the Shelly app or web version; can be connected to the cloud (GDPR compliant)
- Compatibility: Compatible with Android and iOS. With voice assistants, you can control Shelly via voice command from anywhere.
- Why choose Shelly ? Bluetooth gateway, scripting functions, best value for money, Wi-Fi repeater function, countless uses

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C717KCK5 |
| Alert Type | entry |
| Antenna Location | Door Sensor, Window Sensor, Advanced sensor |
| Battery Average Life | 5 years |
| Battery Cell Type | Lithium |
| Best Sellers Rank | #64,790 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #79 in Home Security Door & Window Sensors |
| Brand | Shelly |
| Built-In Media | 1 x Shelly Blu Door/Window - Black, User Manual |
| Color | Black |
| Colour | Black |
| Compatible Devices | Light, Security System, Smart Home Hub |
| Compatible devices | Light, Security System, Smart Home Hub |
| Connectivity Technology | Wireless |
| Connectivity technology | Wireless |
| Control Method | App |
| Customer Reviews | 3.9 out of 5 stars 1,294 Reviews |
| Global Trade Identification Number | 03800235266618 |
| Item Dimensions | 95 x 2 x 5 centimeters |
| Item Type Name | Door/Window Sensor |
| Item Weight | 22 Grams |
| Item dimensions L x W x H | 95 x 2 x 5 centimeters |
| Manufacturer | Shelly Group |
| Maximum Range | 30 Meters |
| Mfr Part Number | 661 |
| Model Number | 3800235266618 |
| Power Source | Battery Powered |
| Power source | Battery Powered |
| Unit Count | 1 Count |
| Voltage | 11 |

## Product Details

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

## Images

![Shelly 3800235266618 BLU Black Bluetooth Door/Window Sensor - Image 1](https://m.media-amazon.com/images/I/51V+sSTCC6L.jpg)
![Shelly 3800235266618 BLU Black Bluetooth Door/Window Sensor - Image 2](https://m.media-amazon.com/images/I/91sCHhN-7CL.jpg)
![Shelly 3800235266618 BLU Black Bluetooth Door/Window Sensor - Image 3](https://m.media-amazon.com/images/I/519hOfHjOXL.jpg)
![Shelly 3800235266618 BLU Black Bluetooth Door/Window Sensor - Image 4](https://m.media-amazon.com/images/I/71np1AwnHfL.jpg)

## Available Options

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

## Customer Reviews

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

Low profile and work well

### ⭐⭐⭐⭐⭐ Au top.
*by M***U on 1 August 2026*

Parfait, comme la plus part des produits shelly.

### ⭐⭐⭐⭐⭐ Small but very capable door and window sensor for smart home setups
*by J***H on 12 March 2026*

I added this to a smart home setup and it has worked really well so far. It is a compact Bluetooth door and window sensor that detects when something opens or closes and can trigger notifications or automation scenes. Installation was simple. It mounts with adhesive and the sensor and magnet align easily on a door or window frame. Once installed it disappears pretty well visually because the device is small and lightweight. One thing I like about this sensor is that it does more than just detect open and close. It also measures tilt angle and light levels, which opens up some additional automation possibilities depending on how you are using it. Battery life is rated up to around five years using a coin cell battery, which is nice because it means you are not constantly swapping batteries like some sensors. Overall this is a solid little sensor if you are building out a smart home or security setup. It is easy to install, integrates with automation platforms, and gives you reliable notifications whenever a door or window is opened.

## Frequently Bought Together

- Shelly Blu Door/Window White | Smart Bluetooth Operated Sensor for Home Security & Custom Activation Scenes | Home Automation | Email & App Alerts Notification | Alexa & Google Home Compatibility
- Shelly BLU Gateway | Bluetooth WiFi Gateway in a USB-A dongle | Home Automation | Compatible with Alexa & Google Home | iOS Android App | WiFi Range Extender | Wire-Free
- Shelly Blu Motion | Bluetooth Motion & Lux Sensor | Home Automation | Compatible with Alexa & Google | iOS Android App | Long-Lasting Battery | Scene Activation | Range up to 9 Meters

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-08-26*