Okay, so Ive found that the initial setup is much easier to do from a Mac Book using safari... And then install the iPhone app. Seems to be working for me now. Not too many bugs with the iPhone app. However, the iPhone app GRAPHS for each of the sensors do not work at all for the three sensor temperatures. And for the humidity, they seem to be mis-labeled in reverse chronological order... Eg: 1 hour ago is labeled as -12hrs, 2 hours ago is labeled as -9hrs, 3 hours ago is labeled as -6hrs, etc. (Btw: The sensors seem to have a decent range within my home that is quite oversized at 6k square feet, as well as outdoors.)
Chuck$ter about Acu-Link