Which did you buy? It might help others to have a list of models that can be used for this purpose.
Another tip for anyone looking into setting these up: chart the distances between where you’d like the cameras to be placed on Google Maps/Earth. They have a feature that allows you to measure the overhead distance from one point to the other. Is it a perfect measurement? Probably not, but if you’re doing a multi-camera setup, it at least gives you an idea of how far you can push things. I don’t know if this is referring to the H1L HomeCortex or another model, but apparently the range is 22m/70ft from the camera. That’s not accounting for signal interference from other devices or thick building materials, though.