# Interruption of Alarm loops once sensor is deactivated

**URL:** https://community.homey.app/t/interruption-of-alarm-loops-once-sensor-is-deactivated/153023
**Category:** Questions & Help
**Tags:** flow
**Created:** [March 27, 2026, 1:34pm UTC](https://community.homey.app/t/interruption-of-alarm-loops-once-sensor-is-deactivated/153023 "2026-03-27T13:34:50Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![Jeffrey\_Ellenburg1](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/jeffrey_ellenburg1/32/122056_2.png) [@Jeffrey\_Ellenburg1](https://community.homey.app/u/Jeffrey_Ellenburg1)
#### Post date: [March 27, 2026, 1:34pm UTC](https://community.homey.app/t/interruption-of-alarm-loops-once-sensor-is-deactivated/153023/1 "2026-03-27T13:34:50Z")

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I have a Shelly window sensor that, when triggered, should activate a delayed alarm loop until the window sensor is deactivated again.  
For example:

-A skylight is opened (sensor triggered)  
-Wait 10 minutes  
-A reminder/alarm (Sonos tone) sounds then every minute until the skylight is closed (sensor deactivated).

I’ve tried using parallel workflows and deactivating workflows, and I’ve also looked into the Chronograph app, but I haven’t found a workable solution yet.  
Does anyone perhaps have a simple suggestion?

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<div class="post-metadata">

### Author: ![Jeffrey\_Ellenburg1](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/jeffrey_ellenburg1/32/122056_2.png) [@Jeffrey\_Ellenburg1](https://community.homey.app/u/Jeffrey_Ellenburg1)
#### Post date: [March 27, 2026, 1:36pm UTC](https://community.homey.app/t/interruption-of-alarm-loops-once-sensor-is-deactivated/153023/2 "2026-03-27T13:36:11Z")

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And yes, I have already used the search function… but have probably been using the wrong key words 😉

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### Author: ![dsdevries](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/dsdevries/32/80220_2.png) [@dsdevries](https://community.homey.app/u/dsdevries)
#### Post date: [March 27, 2026, 2:05pm UTC](https://community.homey.app/t/interruption-of-alarm-loops-once-sensor-is-deactivated/153023/3 "2026-03-27T14:05:54Z")

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Chronograph really is the way to go here. The following flow should do the trick. Mine is based on a zone to become active, but you can replace it with the skylight sensor.

 ![Screenshot 2026-03-27 at 15.07.09](https://us1.discourse-cdn.com/flex025/uploads/athom/original/3X/e/8/e865485048872238fde2c23134488564eea5691d.jpeg)

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<div class="post-metadata">

### Author: ![Jeffrey\_Ellenburg1](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/jeffrey_ellenburg1/32/122056_2.png) [@Jeffrey\_Ellenburg1](https://community.homey.app/u/Jeffrey_Ellenburg1)
#### Post date: [March 27, 2026, 3:20pm UTC](https://community.homey.app/t/interruption-of-alarm-loops-once-sensor-is-deactivated/153023/4 "2026-03-27T15:20:49Z")

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That was the perfect fix ! THANKS !

I love this community 😉