10 Contact Sensor Automation Ideas for Keeping an Eye on Your Home

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Rod Alcidonis

Published on January 10, 2023

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A window and door contact sensor on a white wooden sash.

Smart home contact sensors are incredibly versatile and can be used for a wide variety of applications to monitor activities around the home. These sensors consist of a magnetic sensor and a magnet, and you can configure them to detect when a door, window, or other type of enclosure is opened or closed. This is a great way to monitor the status of various parts of your home and to receive alerts when certain events occur.

Here are 10 ideas on how you can use a contact sensor to keep an eye on your home!

1. Monitoring the Open/Close Status of Doors, Gates,  and Windows

You can use a contact sensor to monitor the status of your front door, back door, or any other entryway in your home. By attaching a sensor to these doors, you can create automations that notify you when someone enters or exits your home, or when a door is left open for an extended period of time. This is a great way to keep track of who is coming and going in your home, and to ensure that your doors are securely closed when you are away.

2. Monitoring the Open/Close Status of Refrigerators and Freezers

You can use a contact sensor to monitor the open and closed status of your refrigerator, freezer, or dishwasher. With a contact sensor attached to the door of these appliances, you can keep track of when they are opened and closed through a simple automation. This is an easy automation to setup to help you prevent food spoilage. You can implement this idea by creating an automation to alert you to close the door of the refrigerator if it has been left open for an extended period of time.

3. Detecting the Opening of Medicine Cabinets and Liquor Cabinets

Another great use case for a contact sensor is to detect the opening of a medicine cabinet or liquor cabinet. This can be especially useful if you have children, as this automation allows you to monitor their access to restricted items in the home. For instance, if you become aware of the cabinet being open at a time you did not anticipate, you can configure an automation to check if a child has been messing with it. And hey: You can even create an automation to send you a notification that tells you how many times you’ve opened the liquor cabinet, if you want a gentle reminder to slow down a bit.

4. Keeping Track of Drawers and Cabinets

You can also use a contact sensor to monitor the open and close status of drawers and cabinets throughout your home. For example, you can use a sensor to keep track of when certain items are removed from a particular drawer or cabinet, or to receive a notification when an item is returned. Such automation would be useful for keeping track of items such as tools, office supplies, or cleaning supplies. With this automation, no more moving your stuff without your knowledge.

5. Monitoring the Status of a Garage Door

Another excellent use for a contact sensor is to monitor the status of a garage door. By attaching a sensor to your garage door, you can create automations to notify you when the door is opened or closed. And as a bonus tip, to take this automation to the next level, you can even integrate the garage door contact sensor with smart lights to turn them on or off automatically when you enter your home.

6. Ensuring Safety in and Around Swimming Pools

You can use a contact sensor to ensure safety in and around your swimming pool. With a sensor on the gate, you can program automations to alert you if the gate has been opened without your permission, especially if you have children. This automation can help keep the little ones safe around the pool.

7. Monitoring the Open and Close Status of a Laundry Room Washer and Dryer Unit

You can pair a contact sensor with a smart switch in your laundry room to monitor the door of a washing machine or dryer, and set up an automation that sends you a notification on your phone when a load of laundry is finished. You can program your automation to send the notification if the smart switch has been running and the contact sensor has not been opened since it was last closed, indicating that the cycle is complete and no one has yet checked the laundry.

8. Monitoring the Status of Your Mailbox

You can use a contact sensor to monitor the status of your mailbox and create a simple automation to alert you when mail has been delivered, or when you have accidently left the mailbox open. You now have a way to keep track of important mail and packages!!!

9. Monitoring Cleaning Supply Cabinets and Closets

You can place a contact sensor in any cabinet or closet where you store your cleaning supplies. You can configure an automation to be triggered when the door of the cabinet or closet is opened — to remind your or your folks to put the cleaning supplies back after use. This is a great strategy to help keep the space organized.

10. Monitor the Status of a Safe

And finally, you can use a contact sensor to monitor the status of a safe, and create an automation that notifies you when the door is open, or when it has been left open for an extended period of time. In addition to using a key to lock your safe, this is one more secure way to ensure that no one can access your valuables without your knowledge.

Final Thoughts

These are just a few of the many ways you can use a contact sensor to keep an eye on your home. With a little creativity and imagination, you can come up with even more ways to use a contact sensor to automate and monitor different parts of your home. From monitoring the status of appliances and keeping track of important items, to ensuring safety and security, these sensors can help make your home a more efficient and comfortable place to live.


I hope you found this article, "10 Contact Sensor Automation Ideas for Keeping an Eye on Your Home", informative and useful. For more smart home automation content, you might want to read this article next: How Does a Contact Sensor Work in a Smart Home?. If you found this article helpful, Subscribe to the On Motion Detected YouTube Channel, or sign up for our newsletter for more smart home automation content delivered to your inbox.

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