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.

If you can install a conventional outdoor light fixture, you can install a motion sensor light, although aiming and adjusting it takes extra effort. The post How To Install Motion Sensor Lights ...

Door and window sensors are the backbones of a good home security system since most burglars try to enter the house through doors or windows.

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.

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.

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.

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.