# Temperature is not stable - Multisensor ZW100

**URL:** <https://discourse.nodered.org/t/temperature-is-not-stable-multisensor-zw100/8347>\
**Category:** General\
**Created:** [25 February 2019 03:22 UTC](https://discourse.nodered.org/t/temperature-is-not-stable-multisensor-zw100/8347 "2019-02-25T03:22:55Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![florent](https://avatars.discourse-cdn.com/v4/letter/f/e19b73/32.png) [@florent](https://discourse.nodered.org/u/florent)\
**Post date:** [25 February 2019 03:22 UTC](https://discourse.nodered.org/t/temperature-is-not-stable-multisensor-zw100/8347/1 "2019-02-25T03:22:55Z")

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Hello,  
My temperature with my multisensor is not regular.  
By default it is in farenheit and I try to convert it in celsius.  
But, one time it give me a temperature in farenheit (so, in this case it's ok and I can convert it to Celsius) but another time it give me a temperature in celsius and it doesn't work because it's already in celsius.  
Somebody has any idea ?  
Thanks for your help

![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/2X/1/155baf4a1afaff6c727ff5332cc0ec48a1c470d7.png)  
 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/2X/4/479795721eddc614cfa93d9490ed569e0bd4a5b9.png)  
 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/2X/0/05ac2248fb35864d8c5edef7cb6e3e5c1d3f99e7.png)

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**Author:** ![hotNipi](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/hotnipi/32/383_2.png) [@hotNipi](https://discourse.nodered.org/u/hotNipi)\
**Post date:** [25 February 2019 05:40 UTC](https://discourse.nodered.org/t/temperature-is-not-stable-multisensor-zw100/8347/2 "2019-02-25T05:40:27Z")

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> **Probably wrong answer hidden**
>
> Investigate whole incoming message. Maybe the temperature unit is carried alongside the temperature value?

I don't have that device but googled the issue and actually it might be device configuration problem.  
Read this :[https://community.openhab.org/t/aeotec-multisensor-6-f-to-c/3433](https://community.openhab.org/t/aeotec-multisensor-6-f-to-c/3433)

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**Author:** ![florent](https://avatars.discourse-cdn.com/v4/letter/f/e19b73/32.png) [@florent](https://discourse.nodered.org/u/florent)\
**Post date:** [25 February 2019 15:11 UTC](https://discourse.nodered.org/t/temperature-is-not-stable-multisensor-zw100/8347/3 "2019-02-25T15:11:01Z")

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Hi hotNipi.

And thank you for the link.  
I will try flashing sensor in first time.

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**Author:** ![florent](https://avatars.discourse-cdn.com/v4/letter/f/e19b73/32.png) [@florent](https://discourse.nodered.org/u/florent)\
**Post date:** [3 March 2019 07:18 UTC](https://discourse.nodered.org/t/temperature-is-not-stable-multisensor-zw100/8347/4 "2019-03-03T07:18:52Z")

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Hi hotNipi,

It seems to be resolved after an firmware update.  
I followed this link and instruction for do that.  
My mutltisensor give me the correct information now in celsius.

[https://aeotec.freshdesk.com/support/solutions/articles/6000036562-how-to-update-multisensor-6-z-wave-firmware-](https://aeotec.freshdesk.com/support/solutions/articles/6000036562-how-to-update-multisensor-6-z-wave-firmware-)

![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/2X/3/3d20296f308d4fb5d2fd034dc6cbe94894861cef.png)

But the temperature grow up until 26.77 degres and go down until the real temperature in the piece.  
I dont no why. It can be the multisensor need to calibrate by itself during a laps time ?..humm

![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/2X/c/cee6996adf2ba567f3ae8389223550bd19878b95.png)

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<div class="post-metadata">

**Author:** ![hotNipi](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/hotnipi/32/383_2.png) [@hotNipi](https://discourse.nodered.org/u/hotNipi)\
**Post date:** [3 March 2019 10:34 UTC](https://discourse.nodered.org/t/temperature-is-not-stable-multisensor-zw100/8347/5 "2019-03-03T10:34:52Z")

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Hard to tell. As I said before' I don't have this device. It seems to be device firmware or configuration issue but by exploring user experiences on this topic it seems to be mostly resolved by firmware update. Nothing more to advise.

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**Author:** ![florent](https://avatars.discourse-cdn.com/v4/letter/f/e19b73/32.png) [@florent](https://discourse.nodered.org/u/florent)\
**Post date:** [3 March 2019 16:39 UTC](https://discourse.nodered.org/t/temperature-is-not-stable-multisensor-zw100/8347/6 "2019-03-03T16:39:42Z")

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Ok.  
Thanks for your help.