# A script to check sensor last update

**URL:** <https://community.homey.app/t/a-script-to-check-sensor-last-update/63142>\
**Category:** Questions & Help\
**Tags:** homeyscript\
**Created:** [April 29, 2022, 7:44am UTC](https://community.homey.app/t/a-script-to-check-sensor-last-update/63142 "2022-04-29T07:44:44Z")\
**Posts on this page:** 1\
**Showing post:** 7

<div class="post-metadata">

**Author:** ![robertklep](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/robertklep/32/160628_2.png) [@robertklep](https://community.homey.app/u/robertklep)\
**Post date:** [May 1, 2022, 11:58am UTC](https://community.homey.app/t/a-script-to-check-sensor-last-update/63142/7 "2022-05-01T11:58:01Z")

</div>

Perhaps something like this:

```auto
const INVALIDATE_AFTER = 86400;

const invalidatedDevices = [];
for (const device of Object.values(await Homey.devices.getDevices())) {
  for (const capabilityObj of Object.values(device.capabilitiesObj || {})) {
    if (capabilityObj.lastUpdated && (Date.now() - new Date(capabilityObj.lastUpdated) > INVALIDATE_AFTER * 1000)) {
      invalidatedDevices.push(device.name);
    }
  }
}
await tag('InvalidatedDevices', invalidatedDevices.join(', '));
return invalidatedDevices.length != 0;

```

This will mark a device as invalid if it hasn’t updated for at least one day (86400 seconds). It will set a token that can be used in a notification.

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_[View the full topic](https://community.homey.app/t/a-script-to-check-sensor-last-update/63142)._