HS110HS110HS110  @Andhanni,

We actually offer a Smart Power Strip with multiple plugs that offer energy monitoring for connected devices.

The way that the monitoring works for the plugs, is that it measures the current passing through the device itself. Therefore, an energy reading from the plug will be a summation of the power being delivered to any devices connected to the plug. This means that you could theoretically put a power strip(if it doesn't trigger the surge protect) or splitter on the end of the smart plug to control a series of devices. 

If you are using a third-party integration to monitor and store the energy monitoring data, it is possible to determine what device is currently on based on how much power the device tends to draw when active, however, this is not always accurate and can be difficult to set up. 

I currently have an EP25 connected to a three-way splitter that controls my old-fashioned ceiling fan, my ambient lighting, and my overhead lights; that way they can all be controlled(on/off) via one switch in the app.

You can see the rest of our Smart Plugs from Kasa here: Kasa Smart Plugs

On this page, the device name includes energy monitoring as a feature. However, some plugs offer the functionality, but you have to navigate to the product page to tell.

From going through the product pages, the products that we offer that have the energy monitoring feature are:

Kasa Smart Plugs: EP25, KP125, KP115, HS110

Kasa Smart Power Strip: HS300