Hive Window or Door Sensor Relax. Our Window or Door Sensor lets you know everything’s okay back home so you can take it easy wherever you are. Know when someone’s home When you’re away, the Hive Window or Door Sensor will send you a notification if it detects a window or door opening. Perfect for checking if the kids are home. Worry less If you’re worried about leaving a window or door open, check in an instant with a tap of the app. Go back in time You can see when the sensor has detected motion over the last seven days. Bring your home to life Hive products work brilliantly on their own, but they're even better when they work together to get your home working seamlessly around you.