The very best help I got for all my questions on setting up the pet door were with the manufacturer's contact in Florida, I can't tell you enough how this is the best source to set it up and it takes time and patience believe me, here is the contact info: Natalie Sullivan, with Sure Petcare, customer service phone# 855-461-4740 8-5 ET Mon-Fri if they don't answer the phone for some reason then email Natalie at N.Sullivan@surepetcare.com and here is the web site: https://www.surepetcare.com/en-us/contact

Yes... I installed it one mine!

No! It lets all pets out of the door in other words it stays swings open all the time on the inside so all pets can go out. but it locks coming in from outside so the pets have to have a microchip or a microchip tag in order to get inside.. We purchased it so our small dogs could go outside but the cat could not so the only way we could make this do that is we had to reverse the set up by putting the indoor side of the door outside, the only issue you have doing this is any animal outside can come through the door but then only the programmed microchipped pets can go outside which was ok with us since we set it to lock mode in the evenings… had I known this was the way it operates before I most likely would have search for something else which would work both ways…