I am using this app since 3 months ago and this application work nicely and correctly.
This application working without rooting the phone.
This application have many features like you can check battery temperature not temperature of many other components.
We can also examine sensors details and working of them.
We can also see the manufacture of different part in phone.
This application is also available for desktop.
The size of file is approx 2MB.
I suggest you that you can download this application.