Cheeper Keeper Automatic Duck Door Opener - Complete Chicken or Duck Coop Door Opener and Closer Kit - Medium Size Door 11" Wide by 15" Tall

The motor / sensor assembly is superb, and well engineered. The instructions on how to mount the rails are simply erroneous. The included instructions I received stated 12" between the bottom holes. Nope. Nope. Nope. Nope. This was too wide.This can give you a bit of a headache, because it is not simple to place another hole right next to the hole you just drilled in your coop.I also find it peculiar that they include a very cheap paperclip to attach the string to the door. I don't trust this paperclip at all. I really find it odd because when I ordered the repair kit to replace the string that broke on another door opener and the clip that came with the repair kit is much higher quality. (That further reminds me, why was the string on the first door opener so poor quality compared to the string in the repair kit?)

I've only had this for a short time, but it's working well. Easy to set up. I wish I could get it to open later in the AM, but I can only do that by then getting it to close later in the evening. Either way, it still opens and closes when the raccoons are out so I need to keep the birds behind an electric fence until they can free range when it's lighter out. It's great to know I don't have to be home at a certain time to make sure they're shut in. The string to open and close the door seems very delicate so I'm not sure how long it will hold up. I have my system on the outside of the coop because my geese will pull it off otherwise so it's outside in the elements, but the company states it will work fine. On that note, my geese do fit in this door and will use it along with the ducks which I wasn't sure if it would be too small. I'll provide an update after I've had this a few months.

I got this unit. Installed it and everything was fine. Then it stopped working. I thought it was because the batteries had exploded, so I cleaned the contacts and installed new batteries. It didn't work. So I tested and i'm getting the proper voltage for the unit, but it still doesn't work. I submitted a question to the seller, but it's been almost a month haven't heard back. When it worked it worked great, which is why I gave it 2 instead of one star. I'd really like it to work because it's nice and simple

Installed in under an hour. :) the motorbox looks so so on the coup, its a plastic box.. And i had to laugh when i saw the paperclip intended to attach the string to the door.. :).. .. :/ think i will eventually replace that with some fishing swivelclips or the like... The paperclip makes it appear sorta silly..It did come with a loop already tied on the end of the string which is definitely nice. :)I was careful to keep the string straight when i installed the control box.. Hopefully that tiny string will last the longrun..I must say, it works like magic!! It is so nice for both farmer and chicken to have SO much more freedom in their schedules!!!!Its so nice a luxury, using only 4-AA batteries!! Smartest move i made in a while! if you can, for sure get one...!Now i check in w the chickens and collect eggs at my leisure.The eggs even taste happier with that extra early morning sunshine the chickens get!! ;) and now i have more time to improve the henhouse etc.. ;)

Absolutely worth the cost! Unit has worked flawlessly since I installed it. The flock (chickens and ducks) adapted so quickly to their new routine and the door closes about 15 minutes after their put themselves to sleep in the coop. After the first 2-3 nights of learning their new routine, no one has been 'locked out'. No more racing home at dusk to close them up properly. Highly recommend! Also recommend the extra long light sensor cord!

Prior to purchasing this door, we were locking the coop door every night, and unlocking it every morning. We live on some property, and the coop is some distance from our house, so this was a bit of a hassle. But now, this door does it all for us. And it works great. Easy to install, detailed instructions. The door closes slowly. There is a light sensor adjustment if one wants to have the door open with more/less light. We bought the light sensor attachment due to the construction of our coop. Everything works perfectly, and our flock is much less of a hassle now.

I have two(2) of these units, The door worked fine in normal weather, But when the temperature dropped down this winter both units quit working on the same day, i have replaced batteries to no avail, the units will work for a couple seconds if you keep giving a light pull on the cable but immedeiately quit working. I think it is involving the light Sensor circuit or the pause circuit. Door #1 is on the outside of chicken cage and operates the cage that opens for free ranging. Door # 2 is mounted near the peak of the roof nothing is identical in the way set-up installed except for the Ambient temperature which was exact.I am an electronic technician and will be troubleshooting it afteri can install another type of automatic door.

Love this product. It is simple to install and works great so far. Definitely worth the peace of mind knowing my chickens and ducks are safely locked up.