If you're building up your smart home setup, introducing door sensors can be great for security, but they can bring a lot more utility around the house, too.

IKEA is expanding its lineup of smart home products with three new sensors, all under $10 each. The new sensors look for motion, water, and window activity and work with Google Home, though it ...

Monitor doors and windows with the Aqara P2 sensor. Native Matter support, Thread connectivity, fast alerts, and local HomeKit automations.

The Meross MS200 is a solid HomeKit enabled door sensor that works with Google Assistant as well as Samsung's Smart Things.