---
product_id: 330088759
title: "SwitchBot Door Alarm Contact Sensor - Smart Home Security Wireless Window Alarm and Door Sensor, Add SwitchBot Hub to Make it Compatible with Alexa"
brand: "switchbot"
price: "$50.51"
currency: USD
in_stock: true
reviews_count: 13
category: "Switch Bot"
url: https://www.desertcart.ec/products/330088759-switchbot-door-alarm-contact-sensor-smart-home-security-wireless-window
store_origin: EC
region: Ecuador
---

# 5m wireless range long-lasting 2x AAA batteries tool-free, instant setup SwitchBot Door Alarm Contact Sensor - Smart Home Security Wireless Window Alarm and Door Sensor, Add SwitchBot Hub to Make it Compatible with Alexa

**Brand:** switchbot
**Price:** $50.51
**Availability:** ✅ In Stock

## Summary

> 🔐 Elevate your home security game with smart alerts and hands-free automation!

## Quick Answers

- **What is this?** SwitchBot Door Alarm Contact Sensor - Smart Home Security Wireless Window Alarm and Door Sensor, Add SwitchBot Hub to Make it Compatible with Alexa by switchbot
- **How much does it cost?** $50.51 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/330088759-switchbot-door-alarm-contact-sensor-smart-home-security-wireless-window)

## Best For

- switchbot enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Installation:** Compact, wireless design installs in seconds—no tools, no hassle.
- • **Seamless Smart Security:** Real-time door/window alerts keep you instantly informed wherever you are.
- • **Alexa-Enabled Protection:** Voice alarms via Alexa hub deter intruders and boost peace of mind.
- • **Integrated Ecosystem Power:** Syncs with SwitchBot devices to automate your home like a pro.
- • **Motion-Activated Automation:** Built-in motion sensor triggers smart home scenes for effortless control.

## Overview

The SwitchBot Door Alarm Contact Sensor is a compact, wireless smart sensor that detects door and window openings with a 5-meter wireless range. Featuring a built-in motion sensor and light sensor, it enables automated smart home scenes via the SwitchBot app and Alexa integration (with Hub). Easy to install with long-lasting AAA batteries, it provides real-time alerts and voice alarms to enhance home security and convenience.

## Description

SwitchBot Door Alarm Contact Sensor - Smart Home Security Wireless Window Alarm and Door Sensor, Add SwitchBot Hub to Make it Compatible with Alexa: desertcart.com: Tools & Home Improvement

Review: Quick, easy, reliable - These lil fellers are FANTASTIC. Motion sensor + door state functionality in one box is great. Home Assistant integration is fast and easy. Latency is non-existent. Can't say enough good things.
Review: ⭐️⭐️⭐️⭐️⭐️ Simple, Reliable, and Super Handy! - I’ve been using the SwitchBot Contact Sensor for a few weeks now, and I’m honestly impressed by how easy it was to set up and how well it works. I paired it with my SwitchBot Hub and it immediately started delivering real-time notifications whenever a door or window is opened. Setup took less than 5 minutes—just peel, stick, and pair. One thing I really like is the motion detection feature built into the sensor. It goes beyond just tracking open/close status and helps monitor movement in the area, making it doubly useful. Battery life looks great so far, and I love that I can check everything from my phone whether I’m home or away. If you’re looking to add an affordable and effective security boost to your smart home, this sensor is a no-brainer. It’s compact, accurate, and integrates smoothly with other SwitchBot gear. Highly recommend!

## Features

- [Window & Door Alarm Sensor for Home Security] SwitchBot Contact Sensor can detect the opening/closing of doors and windows, guarding security of the elderly, children, and pets. With the built-in light sensor, it will automatically trigger the Switchbot Bot to turn on the light when someone moves when the environment goes dark. The magnets need to be aligned with the bottom of the body, and the distance between the two components needs to be less than 1.2 inches (30mm).
- [Detects People Leaving or Entering the Home] With the built-in motion sensor, Contact Sensor will know whether you are leaving or coming home, making it possible to trigger the different actions you set in the "Scene" in the SwitchBot app. When it detects you leaving home, the appliances will automatically turn off, and when it detects you coming home, the appliances will automatically turn on. (SwitchBot Hub Mini required)
- [Easy to Install & Place It Anywhere] Thanks to the small and wireless design with long battery life, you can install Contact Sensor tool-free and get it set up in seconds. Place it on a medicine box to track whether the elderly are taking their medication, or place it on your pet's cage to know if your kitten has slipped away.
- [Part of the SwitchBot Ecosystem] Connect Contact Sensor with other SwitchBot products and set up a ”Scene“ in the SwitchBot app. When windows are opened, the SwitchBot Bot will be triggered to turn off the Air purifier automatically. (SwitchBot Hub required)
- [Remote Alert Notification & Voice Alarm from Alexa] You will receive a door-open alert notification on your phone if a suspicious person enters the house while you are away (SwitchBot Hub required). Alexa will start a voice alarm to scare off any burglars, ensuring your apartment security.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B094XZ8H5H |
| Batteries | 2 AAA batteries required. (included) |
| Battery Description | Alkaline |
| Best Sellers Rank | #111,427 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #124 in Home Automation Hubs & Controllers |
| Control Method | App, Touch |
| Date First Available | June 20, 2021 |
| Item Weight | 1.73 ounces |
| Item model number | W1201500 |
| Manufacturer | Wonderlabs |
| Maximum Range | 5 Meters |
| Mounting Type | Door Mount, Window Mount |
| Noise Level | 50 Decibels |
| Number of Batteries | 2 AAA batteries required. (included) |
| Product Dimensions | 2.8 x 1.02 x 0.91 inches |
| Smart Home Compatibility | Smart Home Compatible |
| UPC | 850007706388 |

## Product Details

- **Brand:** SwitchBot
- **Color:** White
- **Compatible Devices:** Smartphones or tablets with Bluetooth 4.2 or above
- **Power Source:** Battery Powered
- **Product Dimensions:** 1"L x 0.47"W x 0.91"H

## Images

![SwitchBot Door Alarm Contact Sensor - Smart Home Security Wireless Window Alarm and Door Sensor, Add SwitchBot Hub to Make it Compatible with Alexa - Image 1](https://m.media-amazon.com/images/I/518bZt6SaqS.jpg)

## Available Options

This product comes in different **Number Of Items** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quick, easy, reliable
*by J***N on November 25, 2025*

These lil fellers are FANTASTIC. Motion sensor + door state functionality in one box is great. Home Assistant integration is fast and easy. Latency is non-existent. Can't say enough good things.

### ⭐⭐⭐⭐⭐ ⭐️⭐️⭐️⭐️⭐️ Simple, Reliable, and Super Handy!
*by E***E on July 27, 2025*

I’ve been using the SwitchBot Contact Sensor for a few weeks now, and I’m honestly impressed by how easy it was to set up and how well it works. I paired it with my SwitchBot Hub and it immediately started delivering real-time notifications whenever a door or window is opened. Setup took less than 5 minutes—just peel, stick, and pair. One thing I really like is the motion detection feature built into the sensor. It goes beyond just tracking open/close status and helps monitor movement in the area, making it doubly useful. Battery life looks great so far, and I love that I can check everything from my phone whether I’m home or away. If you’re looking to add an affordable and effective security boost to your smart home, this sensor is a no-brainer. It’s compact, accurate, and integrates smoothly with other SwitchBot gear. Highly recommend!

### ⭐⭐⭐⭐ Great - But Ocassionally Delayed Notifications
*by H***R on July 25, 2023*

I have this sensor mounted on an exterior door. Usually when the door is opened, I get a notification on my Android phone (Pixel 7) almost immediately (95% of the time). However there are times where notifications can take up to 10 minutes, and I'm not exactly sure why. This could be an issue with my phone and completely unrelated to this device - not sure. Othewise, as with other Switchbot products, it was easy to setup and install. Overall I'm pleased and would buy it again.

## Frequently Bought Together

- SwitchBot Door Alarm Contact Sensor - Smart Home Security Wireless Window Alarm and Door Sensor, Add SwitchBot Hub to Make it Compatible with Alexa
- SwitchBot Smart Motion Door Sensor - Wireless Home Security System, PIR Motion Detector Alert, Add SwitchBot Hub to Make it Compatible with Alexa

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-02-25*