# Contact Sensor

**URL:** <https://community.homey.app/t/contact-sensor/128863>\
**Category:** Devices\
**Tags:** homey-pro\
**Created:** [January 25, 2025, 9:42pm UTC](https://community.homey.app/t/contact-sensor/128863 "2025-01-25T21:42:14Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Luigi\_Colancecco](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/luigi_colancecco/32/82268_2.png) [@Luigi\_Colancecco](https://community.homey.app/u/Luigi_Colancecco)\
**Post date:** [January 25, 2025, 9:42pm UTC](https://community.homey.app/t/contact-sensor/128863/1 "2025-01-25T21:42:15Z")

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I have a contact sensor on my mailbox to notify me that I got mail. Sometimes the mailman open and closes it multiple times in less than 1 minute, how can I make it only notify me once with a minute or so, instead of getting rapid fire notifications form it?

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**Author:** ![Philip\_Montgomery](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/philip_montgomery/32/12434_2.png) [@Philip\_Montgomery](https://community.homey.app/u/Philip_Montgomery)\
**Post date:** [January 25, 2025, 10:06pm UTC](https://community.homey.app/t/contact-sensor/128863/2 "2025-01-25T22:06:52Z")

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Chronograph app can be used like this to control when a sensor input gets used again

 ![Screenshot 2025-01-25 220537](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/3/6/36a42ac74acc115c961f8c59675fb7f87e6bcedc.png)

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**Author:** ![Dijker](https://avatars.discourse-cdn.com/v4/letter/d/b9bd4f/32.png) [@Dijker](https://community.homey.app/u/Dijker)\
**Post date:** [January 25, 2025, 10:11pm UTC](https://community.homey.app/t/contact-sensor/128863/3 "2025-01-25T22:11:51Z")

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Add it to a new Zone named Mailbox  
When Zone Mailbox is inactive for …1 or 5 minutes trigger flow to send message…

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**Author:** ![Rogier\_Verheugen](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/rogier_verheugen/32/77406_2.png) [@Rogier\_Verheugen](https://community.homey.app/u/Rogier_Verheugen)\
**Post date:** [January 25, 2025, 10:13pm UTC](https://community.homey.app/t/contact-sensor/128863/4 "2025-01-25T22:13:57Z")

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![image](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/2/d/2dde619716b6d7b65b43b4abd3146c4d1ce1fed3.png)

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<div class="post-metadata">

**Author:** ![Rogier\_Verheugen](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/rogier_verheugen/32/77406_2.png) [@Rogier\_Verheugen](https://community.homey.app/u/Rogier_Verheugen)\
**Post date:** [January 25, 2025, 10:22pm UTC](https://community.homey.app/t/contact-sensor/128863/5 "2025-01-25T22:22:26Z")

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I love it when everybody dives in to it to help a fellow community member ❤

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**Author:** ![Henk\_Renting](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/henk_renting/32/87634_2.png) [@Henk\_Renting](https://community.homey.app/u/Henk_Renting)\
**Post date:** [January 25, 2025, 10:24pm UTC](https://community.homey.app/t/contact-sensor/128863/7 "2025-01-25T22:24:22Z")

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I simply let the “mailman notification flow” start another flow, which has only 2 THEN cards:

- disable “mailman notification flow”
- enable “mailman notification flow” after 1 minute

Only flaw I see here is when Homey restarts just between these 2 AND cards, but that probably will never happen…