---
product_id: 477445743
title: "Bosch Smart Home Door/Window Contact II, Smart Sensor for Energy-Efficient Heating, Compatible with Amazon Alexa And Google Assistant, White 3-Piece Set"
brand: "bosch smart home"
price: "$261.19"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/477445743-bosch-smart-home-door-window-contact-ii-smart-sensor-energy
store_origin: US
region: United States of America
---

# Automated energy-saving triggers Real-time open/close status Ultra-thin 3mm magnet design Bosch Smart Home Door/Window Contact II, Smart Sensor for Energy-Efficient Heating, Compatible with Amazon Alexa And Google Assistant, White 3-Piece Set

**Brand:** bosch smart home
**Price:** $261.19
**Availability:** ✅ In Stock

## Summary

> 🔒 Stay smart, save energy, and secure your space effortlessly!

## Quick Answers

- **What is this?** Bosch Smart Home Door/Window Contact II, Smart Sensor for Energy-Efficient Heating, Compatible with Amazon Alexa And Google Assistant, White 3-Piece Set by bosch smart home
- **How much does it cost?** $261.19 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/477445743-bosch-smart-home-door-window-contact-ii-smart-sensor-energy)

## Best For

- bosch smart home enthusiasts

## Why This Product

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

## Key Features

- • **Discreet & Sleek Design:** Ultra-thin magnet fits invisibly on any door or multi-glazed window.
- • **Enhanced Security Alert:** Instant alarm triggers on unauthorized door/window openings for peace of mind.
- • **Voice Assistant Compatible:** Works flawlessly with Amazon Alexa and Google Assistant for hands-free control.
- • **Energy Efficiency Game-Changer:** Automatically lowers heating when windows open, slashing energy bills.
- • **Seamless Smart Home Integration:** Effortlessly syncs with Bosch Smart Home Controller for total control.

## Overview

The Bosch Smart Home Door/Window Contact II is a sleek, ultra-thin sensor set that detects open doors and windows in real-time. Designed for seamless integration with Bosch Smart Home systems and voice assistants like Alexa and Google Assistant, it automates energy savings by adjusting heating when windows are open and enhances security by triggering alarms on unauthorized access. This 3-piece set includes sensors, magnets, batteries, and mounting accessories for easy installation.

## Description

Bosch Smart Home door/window contact II, alarm system, break-in protection, compatible with  Alexa and Google Assistant  The discreet sensor for reliably detecting open doors and windows – triggers an alarm in emergencies and supports sustainable heating when ventilating your rooms.Technical data Radio standard: Zigbee 3.0, 2.4 GHz  Power supply: 1x 3 V CR123A Li battery – exchangeable  Area of application: indoor & outdoor (IP45) Installation options: adhesive tape, screws (screws not included) Product dimensions: 75 x 22 x 23 mm (sensor), 20 x 10 x 3/4 mm (magnet / +adhesive tape) Product weight: 38 g (sensor incl. battery), 5 g (magnet)Box contents 3x door/window sensor3x magnet3x CR123A battery adhesive tapeuser manual

## Features

- Smart sensor: reliably detects open doors and windows, shows their status in the app and serves as a trigger for actions or scenarios in the Smart home thanks to the integrated button
- Discreet design: door/window sensor with an extra-thin magnet (3 mm) fits into the overall living environment in an unobtrusive manner and can be fitted to windows – even those with multiple glazing
- Save heating costs: window sensor detects open windows, enabling the smart radiator thermostats to be automatically turned down via the "Sustainable ventilation" service to save energy costs
- Break-in protection: once integrated into the Bosch Smart Home alarm system, the door/window contact triggers an alarm when it senses the unauthorised opening of doors and windows
- Maximum added value in the system: you need a Bosch Smart Home controller to integrate the device into your Bosch Smart Home system.Box contents: 3x door/window sensor, 3x magnet, 3x CR123A battery, adhesive tape, user manual

## Product Details

- **Brand:** Bosch Smart Home
- **Item dimensions L x W x H:** 25 x 22 x 75 millimeters
- **Material:** Plastic
- **Item weight:** 0.05 Kilograms
- **Style:** Door/window Contact II

## Images

![Bosch Smart Home Door/Window Contact II, Smart Sensor for Energy-Efficient Heating, Compatible with Amazon Alexa And Google Assistant, White 3-Piece Set - Image 1](https://m.media-amazon.com/images/I/41JXYDAIxoL.jpg)
![Bosch Smart Home Door/Window Contact II, Smart Sensor for Energy-Efficient Heating, Compatible with Amazon Alexa And Google Assistant, White 3-Piece Set - Image 2](https://m.media-amazon.com/images/I/61bX+U3MrRL.jpg)
![Bosch Smart Home Door/Window Contact II, Smart Sensor for Energy-Efficient Heating, Compatible with Amazon Alexa And Google Assistant, White 3-Piece Set - Image 3](https://m.media-amazon.com/images/I/61NDXSczq7L.jpg)
![Bosch Smart Home Door/Window Contact II, Smart Sensor for Energy-Efficient Heating, Compatible with Amazon Alexa And Google Assistant, White 3-Piece Set - Image 4](https://m.media-amazon.com/images/I/61lDbQDzBZL.jpg)
![Bosch Smart Home Door/Window Contact II, Smart Sensor for Energy-Efficient Heating, Compatible with Amazon Alexa And Google Assistant, White 3-Piece Set - Image 5](https://m.media-amazon.com/images/I/61KSu6vKaJL.jpg)

## Available Options

This product comes in different **Color, Size, Style** options.

## Frequently Bought Together

- Bosch Smart Home Door/Window Contact II, Smart Sensor for Energy-Efficient Heating, Compatible with Amazon Alexa And Google Assistant, White 3-Piece Set
- Bosch Smart Home radiator thermostat II, smart thermostat with app function, compatible with Amazon Alexa, Apple HomeKit, Google Home
- Bosch Smart Home Controller II, Gateway Controlling The Bosch Smart Home System, Smart Hub

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-26*