mydlink Smart Door/Window Sensor
DCH-B112
The mydlink Smart Door/Window Sensor is a discreet contact sensor that detects when a door or window is opened or closed, giving you a trigger for automating your smart home. Works with the Google Assistant, Alexa and IFTTT.
- Open/close detection for your doors and windows
- Tamper detection for greater peace of mind
- Get open/close alerts on your phone
- Easy mounting on any flat surface on your door or window
- Battery-powered for unrestricted placement – no power outlet needed
- Requires a mydlink Smart Home Hub or Amazon Echo Plus1
- Triggers amazing automations with other mydlink cameras and smart plugs
- Plays nice with the Google Assistant and Alexa
- Sensor Bypass Button allows you to open doors and windows without triggering an alert
- Intuitive setup using the free mydlink app
- Connects using Zigbee™ technology1


- Open/close detection for your doors and windows
- Tamper detection for greater peace of mind
- Get open/close alerts on your phone
- Easy mounting on any flat surface on your door or window
- Battery-powered for unrestricted placement – no power outlet needed
- Requires a mydlink Smart Home Hub or Amazon Echo Plus1
- Triggers amazing automations with other mydlink cameras and smart plugs
- Plays nice with the Google Assistant and Alexa
- Sensor Bypass Button allows you to open doors and windows without triggering an alert
- Intuitive setup using the free mydlink app
- Connects using Zigbee™ technology1


Specifications
Product Description | Smart Door/Window Sensor |
---|---|
Device Interfaces | Zigbee™ wireless, Bypass button, Reset button, Tamper key |
Standard | Zigbee™ 3.0, AES 128-bit encryption |
Wireless Frequency Range | Zigbee™ frequency: 2.4 GHz, Zigbee™ range: 40 m (line of sight), Proximity to secondary module detetion range: 20 mm |
Antennas | NA |
Device Management | mydlink™ app |
Power | CR2 800 mAh lithium battery x 1, Battery Life: 3 years (15 triggers per day), DC 3 V |
Dimensions | Main Sensor Unit: 67 x 20 x 20 mm (2.64 x 0.79 x 0.79 in), Magnetic Trigger: 46 x 12 x 20 mm (1.82 x 0.49 x 0.79 in) |
Weight | Main Sensor Unit (not including battery): 14 g (0.49 oz), Magnetic Trigger: 8.5 g (0.30 oz) |
Certifications | FCC, IC, CE, NCC, RCM, RoHS, Zigbee™ 3.0 |

Why You Want It
Be at Home, Even When You’re Out
No more wondering if you left your door or windows open.
The mydlink Smart Door/Window Sensor lets you check on them from anywhere with your phone. It also sends an alert to you whenever a door or window is opened or when someone tampers with the sensor.
Perfect for knowing straightaway when any of your home’s entry points has been compromised.

How it Works
- Mount the mydlink Smart Door/Window Sensor components on any flat surface where the window or door separates.
- The sensors will detect when they are separated.
- An alert will be sent to your mobile device.
OR… - The sensor triggers automations on other mydlink smart plugs and cameras in your home.

One-Push Sensor Bypass
Built-in sensor bypass button lets you open your doors and windows without activating the alert. Now you can clean your windows or open your medicine cabinet without triggering a bunch of notifications on your phone.

Built-in Tamper Detection
Know immediately when someone tries to pry your mydlink Smart Door/Window Sensor away from your door or window.

Supports the Google Assistant and Alexa
Easily integrates with Amazon Echo’s Alexa or the Google Assistant for convenient hands-free voice control.
Everything Works Together with mydlink
With mydlink, a super-responsive Smart Home is now within reach. Feel the difference when you let mydlink connect and unify your Smart Home devices.
Trigger Camera Recording for Break-Ins
Use the mydlink Smart Door/Window Sensor to trigger recording on your mydlink Full HD Wi-Fi Camera with Built-in Smart Home Hub whenever a window or door opens while you’re away from home.

Turn the Lights on to Deter Burglars
Or pair the Smart Door/Window Sensor with the mydlink Smart Plug to turn your lights on automatically when there’s a break-in.

Your Home, Only Smarter
You deserve a Smart Home that makes every day feel special. It's easy with the new mydlink app.
Get More Control with mydlink
The mydlink app makes looking after your home easier than ever. Manage, control, and set automations for all your mydlink cameras, smart plugs, and sensors anytime, anywhere.
Learn More


- This device connects using Zigbee technology and requires a mydlink Hub or Amazon Echo Plus device to communicate with your home network. D-Link makes no guarantees of interoperability with devices from other manufacturers.
- Battery life based on 15 detections per day. An opening or closing is counted as one detection.
- Please visit mydlink.dlink.com for more information on mydlink products that support Smart Home functionality. Alexa service may not be available in all regions. IFTTT functionality requires a mydlink Smart Home hub.