---
product_id: 556228744
title: "3800235266601 Blu Door/Window Sensor"
brand: "shelly"
price: "€ 59.36"
currency: EUR
in_stock: true
reviews_count: 5
category: "Shelly"
url: https://www.desertcart.nl/products/556228744-3800235266601-blu-door-window-sensor
store_origin: NL
region: Netherlands
---

# Tilt angle & luminosity sensing Bluetooth smart control 5-year battery life 3800235266601 Blu Door/Window Sensor

**Brand:** shelly
**Price:** € 59.36
**Availability:** ✅ In Stock

## Summary

> 🔐 Stay ahead of intruders and energy waste with Shelly Blu — your silent smart guardian!

## Quick Answers

- **What is this?** 3800235266601 Blu Door/Window Sensor by shelly
- **How much does it cost?** € 59.36 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/556228744-3800235266601-blu-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

- • **Precision Sensing:** Monitor tilt angles and ambient light for smarter home automation triggers.
- • **Seamless Integration:** Connects via Bluetooth to your Shelly ecosystem for personalized scenes.
- • **Smart Security Alerts:** Instant notifications on door/window activity keep you one step ahead.
- • **Effortless 5-Year Power:** Forget frequent battery swaps with ultra-long-lasting lithium power.
- • **Energy-Saving Automation:** Automatically cut heating or cooling when windows open to save bills.

## Overview

The Shelly 3800235266601 Blu Door/Window Sensor is a compact, Bluetooth-enabled device designed to detect door and window openings with precision tilt and luminosity measurements. Powered by a long-lasting lithium battery lasting up to 5 years, it integrates seamlessly with the Shelly Smart Control app and ecosystem to deliver instant security alerts and enable energy-efficient home automation. Ideal for modern smart homes, it supports customizable automation scenarios to protect your property and optimize energy use effortlessly.

## Description

Designed to detect opening or closing of doors/windows and report them immediately, triggering home automation scenarios accordingly. Also can measure tilt angle and luminosity.HauptmerkmaleDetects and reports opening or closing of doors/windowsMeasures tilt angle and luminosityBattery 1 x 3 V CR2032 - includedBattery life - up to 5 yearsEasy control through the Shelly Smart Control app, BTHome protocol or various platformsCan be integrated into automation scenarios and scenes*To use this device with the Shelly Smart Control app, a gateway is necessary. Compatible gateways are Shelly BLU Gateway, or any Shelly Plus, Pro or Gen3 device (excluding sensors).

Review: Low profile and work well
Review: It works great but instructions really suck! I returned one thinking it wasn’t working but it was. Check on YouTube for the video on the Shelly guide. I can’t post the link on the review but it will takes 5 min to set it up. Hope that helps

## Features

- Shelly Blu Door/Window is a bluetooth operated sensor,with long-lasting battery up to 5 years, that can measure tilt angle and luminosity.Shelly Blu Door/Window has compact and stylish design 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 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 | B0C718F4LG |
| ASIN  | B0C718F4LG |
| Batteries | 1 CR2430 batteries required. (included) |
| Batteries  | 1 CR2430 batteries required. (included) |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Lithium Ion |
| Battery life | 5 years |
| Best Sellers Rank | #19,123 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #23 in Home Security Door & Window Sensors |
| Color | White |
| Customer Reviews | 3.8 3.8 out of 5 stars (1,050) |
| Customer reviews | 3.8 3.8 out of 5 stars (1,050) |
| Date First Available | 7 September 2023 |
| Date First Available  | 7 September 2023 |
| Included components | 1x Shelly Blu Door/Window White |
| Item Package Quantity | 1 |
| Item Weight | 22 g |
| Item model number | 3800235266601 |
| Item model number  | 3800235266601 |
| Language  | English |
| Manufacturer | Shelly |
| Manufacturer  | Shelly |
| Part number | 660 |
| Plug Profile | Wall Mount |
| Power source type | Battery Powered |
| Product Dimensions | 0.7 x 3.5 x 3.5 cm; 22 g |
| Product Dimensions  | 0.7 x 3.5 x 3.5 cm; 22 g |
| Temperature Range | 1E+2 Degrees Fahrenheit |
| tech_spec_battery_description_toys | Lithium |

## Product Details

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

## Images

![3800235266601 Blu Door/Window Sensor - Image 1](https://m.media-amazon.com/images/I/71vregx9y3L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by B***Y on 20 September 2025*

Low profile and work well

### ⭐⭐⭐⭐⭐ Review
*by S***E on 23 December 2025*

It works great but instructions really suck! I returned one thinking it wasn’t working but it was. Check on YouTube for the video on the Shelly guide. I can’t post the link on the review but it will takes 5 min to set it up. Hope that helps

### ⭐⭐⭐⭐⭐ Review
*by A***O on 21 October 2025*

Aunque cuesta algo integrarlo si no estas en el mundo de la domótica, luego es útil para saber si tienes ventanas abiertas si llueve, pudiendo hacer que, por ejemplo, se bajen persianas para que no entre el agua si estas fuera de casa o sin pasar por todas las habitaciones. Tiene sensor de luminosidad por lo que también se puede integrar con el encendido de luces.

## 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

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.nl/products/556228744-3800235266601-blu-door-window-sensor](https://www.desertcart.nl/products/556228744-3800235266601-blu-door-window-sensor)

---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-13*