Arduino cold room control, temp alert and advanced functions

What do you think about this design?

https://www.youtube.com/watch?v=D-qn...ature=youtu.be

and an update... a Wi-Fi monitoring app without control features:

https://www.youtube.com/watch?v=CQJT1JtG_cQ

It is free IIoT meets PLC

Enough of the self promotion.
I am not going to delete this post as some may be interested.
Plus I cannot work out if you are selling the software.

But please read the rules before any further posts.
I anyone else has an opinion please feel free to voice it!
Grizzly

By all means... Delete posts and the user account