Display pollution Value

[TheSAguy]

I'm not sure if this would be possible or not, thought I'd ask.

I have a Bio Garden entity that scrubs pollution. I'd like for it to display the current pollution value of it's location. The Bio Garden entity is an Assembling Machine.
Something similar to Pollution Detector
So I want it that if you click on the entity, it will show you the pollution value.

I don't think this will be possible with 0.12.x since you need to use a combinator to get an output signal.

Is there another way to do it?

With 0.13, I saw that all entities will be able to connect to the network. Will this maybe be possible then?
Thanks