# Popp Z-rain sensor / App measures incorrect?

**URL:** <https://community.homey.app/t/popp-z-rain-sensor-app-measures-incorrect/1116>\
**Category:** Apps\
**Created:** [September 4, 2018, 5:38am UTC](https://community.homey.app/t/popp-z-rain-sensor-app-measures-incorrect/1116 "2018-09-04T05:38:28Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Itsme123](https://avatars.discourse-cdn.com/v4/letter/i/f05b48/32.png) [@Itsme123](https://community.homey.app/u/Itsme123)\
**Post date:** [September 4, 2018, 5:38am UTC](https://community.homey.app/t/popp-z-rain-sensor-app-measures-incorrect/1116/1 "2018-09-04T05:38:28Z")

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Hi,

Has anyone experience with the Popp Z-rain device and the APP ?

I have bought this Popp Z-rain rain sensor, but to my opinion it measures incorrect values. In short time after it starts to rain it already tells me 7 mm rain has fallen !?  
(A local weather station display ie. only 1 or 1,5 mm)  
This device works with a internal ‘tipping bucket, btw.

Has anyone also this rain sensor from popp and the APP (i use version v1.1.7 by M. Ruiter) ?

Is there a solution to adjust the correct values ?

(There are some settings possible in the app, but i do not know if there is a way to change the value .)

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**Author:** ![Danny\_Bartel](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/danny_bartel/32/34928_2.png) [@Danny\_Bartel](https://community.homey.app/u/Danny_Bartel)\
**Post date:** [August 20, 2021, 9:47pm UTC](https://community.homey.app/t/popp-z-rain-sensor-app-measures-incorrect/1116/2 "2021-08-20T21:47:30Z")

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Hi  
I’ve got the same Z-rain sensor few days ago.  
So I haven’t got much experience yet, to answer your questions…  
However, I would like to know if you still use the sensor, and if you got wiser by now?  
Please share you knowledge…  
Tnx

/Danny