@kimmi - I have a very similar setup with a front gate and an airphone. I see it’s been a year since your post, and I wanted to find out how the system is working for you - anything you would do differently?
The one snag here is that the MIMOlite looks like it requires A/C power (I guess they all would) - I don’t have a power outlet near my airphone… is there a way to power the MIMOlite by stealing power from the Airphone?
Rob