The Best Door & Window Alarms 2025

1. Aqara - P2 Door and Window Sensor- Matter Natively Support, Need Matter Border Router, Remote Alarm and Local Automation - White

The Aqara Door and Window Sensor P2 not only incorporates all the advanced automation and security features for which Aqara is known, but also gives you the option to connect it directly to third-party Thread border routers - such as smart speakers - and use all the benefits of the Matter smart home standard. Matter provides a more cohesive, unified smart home experience for users. It simplifies the process of setting up and managing devices and allows seamless interoperability across smart home devices and platforms. To add the P2 to a particular Matter-enabled app, your device or devices will need to have both Matter controller and Thread border router functionalities. It also requires the Aqara Hub M3 in order to work with the Aqara Home app.

Aqara Door and Window Sensor P2 not only incorporates all the advanced automation and security features Aqara is known for, but also gives users the option to connect it directly to third-party Thread border routers, such as smart speakers, and use all the benefits of the Matter smart home standard.

2. Samsung - Multipurpose Sensor - White

Help protect your home and family with this Samsung multipurpose sensor. Receive alerts if doors or windows are opened unexpectedly. Set lights and other connected devices to turn on and off as people come and go.

3. eufy Security - Smart Home Security Entry Sensor Add-on - White

Discuss your needsRun a Wi-Fi AnalyzerUpdate your smart devices to the latest firmwareIntegrate two already-installed smart devices into your existing smart hubConfigure up to four smart home featuresDemonstrate functionality

Protect Your Doors and Windows from Break-Ins with eufy Security Entry Sensor. Once a window or door is ajar by 1.5 inch, an alert will be sent to your smartphone, and a 100-decibel siren will go off on the HomeBase (can be disabled). Requires eufy Security HomeBase.

4. T1 Door and Window Sensor- Requires Aqara Hub, Supports Apple HomeKit, Alexa, Google, SmartThings - White

The Aqara Door and Window Sensor T1 detects the open and close state of doors or windows through the distance between the sensor unit and the magnet. It consumes a minimal amount of energy. No tools are required! Just stick it to the desired place and use it on doors, windows, cabinet doors, drawers, mailboxes, AC units, etc. This door and window sensor does require an Aqara hub in order to work with the Aqara Home app or for an audible alarm to sound.

Aqara Door and Window Sensor T1 detects the open and close state of doors or windows through the distance between the sensor unit and the magnet. It consumes a minimal amount of energy. No tools are required, just stick it to the desired place and use it in a dozen of possible use cases.

5. Arlo - Wireless Outdoor Siren - White

Extend your security to the outdoors by discouraging intruders with a loud wire-free siren, featuring weather-resistant construction, built in strobe and adjustable volume settings. SecureLink enables extended range and prolonged battery life.

6. eufy Security - Chime Add-On for eufy Video Doorbell E340 - White

Gain instant alerts when visitors arrive at your home with the eufy’s add-on Chime, designed for the Video Doorbell E340. Receive instant app notifications when a guest or delivery person rings the doorbell or motion is detected at the door. Customize the volume and select from 8 chime options while installation is a breeze. Simply plug the chime into a wall outlet, connect to your 2.4 GHz Wi-Fi network then follow the app prompts. *This chime is compatible with eufy wired doorbells. It is not compatible out of the box with battery-powered doorbells nor outdoor cameras. You may connect it to a battery-powered doorbell if you also utilize a eufy HomeBase 2 or HomeBase S380 (HomeBase 3), as well as a USB dongle.

7. Philips - Hue Secure Contact Sensor - 2PK - Black

The Philips Hue Secure contact sensor helps you feel safer when you’re at home and when you’re away. Its slim and flexible design comes in both black and white. The sensor features an adhesive backing, allowing you to place it almost anywhere, such as doors, windows, cabinets, or even safes. The smart design also lets you place the sensor's magnet on the left, right, or top of the sensor's body to ensure the magnet and sensor always have proper contact. Adjust your settings in the Hue app to receive motion alerts when the sensor is opened — or trigger a light alarm to deter potential intruders with a tap in the Hue app.

8. Philips - Hue Secure Contact Sensor - 2PK - White

The Philips Hue Secure contact sensor helps you feel safer when you’re at home and when you’re away. Its slim and flexible design comes in both black and white. The sensor features an adhesive backing, allowing you to place it almost anywhere, such as doors, windows, cabinets, or even safes. The smart design also lets you place the sensor's magnet on the left, right, or top of the sensor's body to ensure the magnet and sensor always have proper contact. Adjust your settings in the Hue app to receive motion alerts when the sensor is opened — or trigger a light alarm to deter potential intruders with a tap in the Hue app.

9. Philips - Hue Secure Contact Sensor - Black

The Philips Hue Secure contact sensor helps you feel safer when you’re at home and when you’re away. Its slim and flexible design comes in both black and white. The sensor features an adhesive backing, allowing you to place it almost anywhere, such as doors, windows, cabinets, or even safes. The smart design also lets you place the sensor's magnet on the left, right, or top of the sensor's body to ensure the magnet and sensor always have proper contact. Adjust your settings in the Hue app to receive motion alerts when the sensor is opened — or trigger a light alarm to deter potential intruders with a tap in the Hue app.

10. Philips - Hue Secure Contact Sensor - White

The Philips Hue Secure contact sensor helps you feel safer when you’re at home and when you’re away. Its slim and flexible design comes in both black and white. The sensor features an adhesive backing, allowing you to place it almost anywhere, such as doors, windows, cabinets, or even safes. The smart design also lets you place the sensor's magnet on the left, right, or top of the sensor's body to ensure the magnet and sensor always have proper contact. Adjust your settings in the Hue app to receive motion alerts when the sensor is opened — or trigger a light alarm to deter potential intruders with a tap in the Hue app.