We bought the Coop Tender automatic door and although the company is not the fastest at getting back with you, the product is certainly industrial quality compared to everything else out there i looked at. Very easy installation and pretty much just plug and play. Last night was the first test for the door and i looked out this morning and sure enough at about 5:30 AM the chickens start coming out without me attending to them at all, Very good investment and value for the money. I got the coop Tender with the detachable module and did not get any accessories but i might add on later the module for turning on the lights, fan and heater etc. Cool product for sure.