# How to add PIR-3SP motion sensor to Homey Pro?
**URL:** https://community.homey.app/t/how-to-add-pir-3sp-motion-sensor-to-homey-pro/68714
**Category:** Questions & Help
**Tags:** infrared, homey-pro
**Created:** [September 11, 2022, 9:48am UTC](https://community.homey.app/t/how-to-add-pir-3sp-motion-sensor-to-homey-pro/68714 "2022-09-11T09:48:34Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@Martin\_Tengklint](https://community.homey.app/u/Martin_Tengklint)
#### Post date: [September 11, 2022, 9:48am UTC](https://community.homey.app/t/how-to-add-pir-3sp-motion-sensor-to-homey-pro/68714/1 "2022-09-11T09:48:35Z")
Hi,
I have multiple passive IR detectors (PIR-3SP). I cannot find the brand - they all belong to my previous alarm system. When I google it, I find the manual:
[www.manualslib.com/manual/1437359/Lifesos-Pir-3sp.html](https://www.manualslib.com/manual/1437359/Lifesos-Pir-3sp.html)
When trying to add a sensor, the app wants me to search for a brand, but since I don’t know the name, I cannot find it - and LifeSOS does not exist.
How can I add these Passive IR motion sensor to my Homey Pro?
Thanks in advance.
BR Martin
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### Author:  [@robertklep](https://community.homey.app/u/robertklep)
#### Post date: [September 11, 2022, 9:52am UTC](https://community.homey.app/t/how-to-add-pir-3sp-motion-sensor-to-homey-pro/68714/2 "2022-09-11T09:52:26Z")
> [@Martin\_Tengklint](#):
>
> How can I add these Passive IR motion sensor to my Homey Pro?
The manual you link to says they operate on 915Mhz, which Homey doesn’t support at all.
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### Author:  [@Martin\_Tengklint](https://community.homey.app/u/Martin_Tengklint)
#### Post date: [September 12, 2022, 8:04pm UTC](https://community.homey.app/t/how-to-add-pir-3sp-motion-sensor-to-homey-pro/68714/3 "2022-09-12T20:04:36Z")
aha ok. I guess I don’t have any option then.
What options of cheap and Homey Pro compatible motion sensors are there?
Any suggestions?
Thanks in advance.
BR Martin