The rest of the devices in the kit are similarly easy to install. Follow the steps in the app to connect the keypad, the range extender, the motion sensor and the door/window sensors.

Eve’s easy-to-install but pricey contact sensor offers powerful automations and it works with Thread, but it doesn’t support Alexa or Google Assistant.

Keep burglars away with the best DIY home security systems. These expert-tested systems will give you professional-grade protection without the hassle of a professional installation.

Onvis has recently updated its door/window contact sensor, the CT3, to incorporate Thread technology. With this update, the Onvis CT3 contact sensor is now able to seamlessly integrate with ...

Eufy’s five-piece home security kit includes a keypad, a motion detection and two door/window contact sensors, plus a hub that doubles as a siren and connects everything to your router.

Each manufacturer has guidelines to determine how close you need to install both pieces to ensure the sensor accurately registers the door or window as closed or open.

After leaving our back-alley garage door open a few times recently—fortunately, with nothing stolen out of it—we decided to add a door/window sensor.

Purchasing a home security system once required having a technician come into your house to punch holes in your walls, then snake wires to every door and window sensor. But today’s systems are ...