# Scaling

**URL:** https://community.homey.app/t/scaling/146338
**Category:** Questions & Help
**Tags:** lights
**Created:** [December 3, 2025, 6:03pm UTC](https://community.homey.app/t/scaling/146338 "2025-12-03T18:03:33Z")
**Posts on this page:** 1
**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: [December 3, 2025, 6:03pm UTC](https://community.homey.app/t/scaling/146338/1 "2025-12-03T18:03:33Z")

</div>

I have an Aqara FP2, an Everything Presence EP1, and another 4 in 1 Zooz sensor.

My issue is, the light sensors in all of these devices aren’t the most accurate, and I haven’t found a good stand alone light sensors (let me know if you know of 1).

I want to be able to build a scale like you would do with industrial automation to correct the light sensors. i.e.

When the EP1 shows illuminance of 0, that would be 25, and when it reads 4 = 50, and 10 = 100. As you can see, a simple offset will not work, because it would have to be different for every number.

With industrial automation, you could set a scale by setting the lowest number “0” to “X” and the highest to “X” i.e. 500 - 6553 would be 0 - 100, or in my case 4 - 10, would be 25 - 100. and it would just automatically increment accordingly