We cover many species of North America, Europe, the UK, the Neotropics, and South Africa. The Echo Meter Touch uses the same classifiers as our Kaleidoscope Pro software. You can see the full list of species here. As we add regions to Kaleidoscope, we will also add them to Echo Meter Touch.
This is a very difficult question to answer. The factors that determine how far a sound travels include humidity, temperature, the source volume and directionality, and surrounding clutter. Additionally, no two microphones have exactly the same sensitivity, even brand new.
This white paper discusses all of the factors involved in much greater detail.