I purchased the Premium Chickenguard controller box only about 4 months ago. The motor can handle 2.2lbs and my aluminum door only weight .8lb, which heavy enough to close the door. I purchased this because the coop about 60 feet away from the house and it runs on the AA Nimh battery. It was expensive, but useful not to deal with open and close the coop every night. I did have trouble calibrate the door to open and close. The procedure is easy, but it tend to stop part way during the calibration process for some reason. The automatic door has been working fine after successful calibrated in the last 4 months. I also added a dual LED flasher light with battery operated 10 days ago for easy to see at night from distant when the door closed and deter predator away. It's also helpful when on vacation because I can put a wireless camera point at the coop and check through the phone. For those who on vacation or come home late, my recommendation 1) the automatic open/close door 2) automatic feeder 3) roll egg nest box 4) horizontal water system
