# Script surveillance des appareils à batterie

**URL:** <https://community.homey.app/t/script-surveillance-des-appareils-a-batterie/73457>\
**Category:** Flows\
**Tags:** homeyscript\
**Created:** [December 11, 2022, 8:16pm UTC](https://community.homey.app/t/script-surveillance-des-appareils-a-batterie/73457 "2022-12-11T20:16:33Z")\
**Posts on this page:** 1\
**Showing post:** 15

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**Author:** ![Sharkys](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/sharkys/32/54029_2.png) [@Sharkys](https://community.homey.app/u/Sharkys)\
**Post date:** [March 17, 2023, 11:26pm UTC](https://community.homey.app/t/script-surveillance-des-appareils-a-batterie/73457/15 "2023-03-17T23:26:36Z")

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When tested directly as Homeyscript :

❌ Script Error

⚠ TypeError: Cannot read properties of undefined (reading ‘lastUpdated’)  
at testdevice.js:56:75  
at processTicksAndRejections (node:internal/process/task\_queues:96:5)  
at async HomeyScriptApp.runScript (/app.js:495:22)  
at async Object.runScript (/api.js:30:22)

…isn’t it maybe because of devices with capabilities that don’t have a `lastUpdated`?  
Robert modified his script here - [A script to check sensor last update - #9 by robertklep](https://community.homey.app/t/a-script-to-check-sensor-last-update/63142/9), do you think you can improve your script maybe ? 😉

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