Sure Petcare Microchip Cat Flap, White, Scans Pet's ID on Entry, Check Your Cat's Size,Flap Opening is 4 3/4” (H) by 5 5/8” (W)

I just installed this flap today after having problems with next door's cat coming into the house to eat. This wouldn't have been an enormous issue (he does no damage and my cat gets along with him) except that he has a long running feud with the local bully, a black cat who attacks all the other cats in the area. Last night was the final straw when they evidently were both in my kitchen yowling at one another! This freaked my cat out so I decided enough was enough and went out to get a file to make the existing hole fractionally bigger so I could install this flap which arrived a week or so ago. That was no problem, I enlarged the hole and slipped the SureFlap in place. Within a few minutes, the interloper was trying to get in, to no avail. I programmed my cat into it without any difficulty, her chip is right between her shoulder blades. But getting her to use it... there's another thing! I went outside and lured her out. It took a while but eventually she figured out that she had to push it with a paw and not just her nose. However... going back in. So far she still hasn't done it. Once outside she sniffed about then took a look at the new door. It was very sunny and the plastic is highly reflective. She saw herself in the door, thought it was a strange cat inside her house and freaked out. She puffed up to twice her normal size and shot off around the side of the house. It was very funny but obviously I had to solve that. So I got some mud and smeared it on the outside of the flap so that it wasn't as reflective as it used to be. You can still just about see out of it if you're inside, but on the outside unless the light is on indoors you can't really see through it any more. She then was happily sticking her head in the tunnel and you could hear it click quietly which makes her start just a little. I'm hopeful that she'll get used to it quickly because I can't be having the big bully coming into the house tearing her to pieces. My main concern right now is that she is used to hurtling through the door when she runs away from him. (Until last night he didn't seem to have any notion that he could come in but now he's seen the other male do it I think he figured it out.) I don't know if it will react fast enough and open the flap without her smacking into it. It may put her off of using it altogether. I'll report back on progress in a while. Jan 9, 2012 A month has now gone by since my cat began using this new flap. It took her a couple of days to start using it to enter the house. I ended up having to cover the inside and outside of the flap in white Scotch tape so she couldn't see her own reflection (but you can see kinda see through it). That was freaking her out a bit so perhaps something for SureFlap to consider in future. Maybe offer an opaque door flap as an option. On the whole though this door has been a life saver. It stopped the other cats from entering - maybe he's brighter than your average kitty but the main offender learned almost immediately that he could no longer get in that way and stopped trying. The only problem, if you can call it that, is that my cat can no longer hurtle through the door, it just doesn't react that fast. But she's learned that and doesn't try to enter it at a run. I worry a little that she may get caught by the big bully cat who occasionally chases her but so far that hasn't been the case. My only other concern and perhaps someone can inform me - does it give you any warning when the batteries are about to die or do I need to test them periodically to see how long they're likely to last? March 10, 2012 There's a slight flaw in this door but I guess not likely to affect most users. My cat is constantly being chased by her enemy, the female cat who lives next door. One day recently she was in hot pursuit and when Mizz came through the door she was so close behind that she was simply able to follow her in because the door hadn't yet shut. This can't be called a design flaw, it's more to do with the nasty character of the cat next door but if you're thinking that it's completely fool proof, it's not. As luck would have it, my husband and I were both in the kitchen when this happened so no fight ensued. The interloper was terrified to find herself in this strange situation and being unfamiliar with cat doors she didn't simply turn around and go back out, instead running off into the house. Hopefully the experience scared her sufficiently that she won't do it again! Regarding the batteries, I tested them and three months after installation they're still almost at max strength so they're going to last a long time. Overall I highly recommend this product; it's miles better than the ones that rely on a collar tag, the microchip isn't going to get lost!

I have two cats - one is a bit of a bully and the other is the victim of his bullying. I use this door to give my female cat access to my utility room without my male cat being allowed in. This results in a better quality of life for her by giving her a private place with food, water, litter, and a bed where she can escape from the other cat for a while if he tries to start a fight. The door does a great job at opening only for the cats it's supposed to open for. When she approaches, you hear it unlock, and it locks behind her just a second or two after she gets through. It would conceivably be possible for another cat to follow in the cat who is supposed to be allowed in the door, however the timing window would be tight and while it is technically possible, it's unlikely the other animal would act quickly enough to get in before it locks again. Installation into an interior wall was easy, I can't speak to installation into glass or an exterior door or wall - any of these are likely much harder. I can't speak to battery life - I've had it for a couple months now and the batteries are still going strong. But the product works and works well. If you have a space that you want your cat to be able to access and no other critters, this will do the job. There are cheaper devices on the market which use a magnet that you put on their collar. However, that would mean that you have to put a collar on your cat and if it ever lost its collar, the door wouldn't work. This solution is much mor elegant as long as your cat is chipped. It doesn't depend on anything that the cat could possibly lose. All in all, it's a solid product. Expensive, but it does what it says. Think about whether you really need this or whether a similar model that uses a magnet on the collar will do. If you do need the feature that this offers, it's great and you won't be disappointed.

I am a pretty handy guy, but this thing still took an entire Sunday to install through the wall. The flap only has two mounting screws, and is meant to be held in place by the tension created when the two screws pull the inner and outer pieces together tightly. The problem is that since I was going through a wall, none of the screws provided were long enough to attach the inner and outer pieces. So, after trying numerous mounting strategies, I finally was able to get the thing installed using threaded rod with various nuts, washers and spacers; not a fun day. Once installed, the cats are either locked in or locked out. The problem is that the tunnel is so narrow that neither cat can get through it. Going out, it makes a loud snap when the lock activates, and it scares the cats, so then they hesitate just long enough for it to lock back, then the whole process repeats. So then they finally get in the tunnel, then they get stuck because the tunnel is so narrow that they have to extend their legs all the way backward in line with their spines and have to pull themselves out. My two were rescued declawed, so they can't catch the ground to pull, and end up in this awkward struggle to get out of the tunnel, which makes me feel concerned that they might get stuck while I'm at work and languish there all day. Then comes the struggle to get back in, they get in the tunnel, get caught up in this awkward position again, and then the door locks itself before they can get through the door, and then they end up stuck in the tunnel pawing at the door, unable to get in or back out. In the time it took me to write this, I had to go rescue my male cat both on the way out and they way in, so now I have to prop it open or lock it shut until I can put the old door back. He's pretty big cat at 14 pounds, but my girl actually has more trouble than he does and she weighs only 8 pounds! That's a really small cat, and if she cant get through because the tunnel is too tight, I can't see how this can work for any cat.

Great little unit! (slaps top) this thing will fit your mid sized tabby or orange boi with lil to no issues! Your furred ones will be able to sneak in and out at their leisure all while this door eliminates you of any door duties . My cat is was a bit hesitant and he has a litter loo and loves to come and go, but once he got the "swing" of this door he was happier than pigs in the pen!! Lock works good, and I trust the RFID and speed of door will keep unwanted critters from partying like andrew wk in my garage! Missed a 5 star due to one thing I see they could improve and provide to their customers. That is a longer tube/tube extension for a little wider wall, or door. Its not a huge deal, and its not like most people will need more than whats supplied....but the option to be there would be SWEET! Sureflap is awesome and if they keep it up I can see them on alot of doors in peoples homes and businesses

Life saver for older chip in our 21 year old cat. This was put in a child gate by angle grinding out a single rung then mounting it in the gap. It has been working great for over a month. There was one issue where the flap would not close, added a little light weight oil (air tool) to the clear pin hinge and it works great. Just like someone might lubricate a Rubik's cube. A single push of the button then our cat stuck his head into the opening and it was programmed. The dog can't get through, and the cat can get to his litter box and food without our little dog getting his food. Only caveat is if the cat goes through really slow it doesn't flap all the way back past the flap, but luckily he doesn't stay in this area too long so the dog hasn't figured this out yet.

Update: Summer 2014: My 18 pound cat gained enough weight over the past frigid winter that he got stuck in the cat door long enough to damage the tunnel. So, I bought SureFlap's new, "second-generation" "Pet Door" and we are all living happily ever after. See my review of that much-improved product, elsewhere. If in doubt, do not buy the "Cat Door", buy the "Pet Door". You will not be disappointed with it. Update: June 4, 2013: Ongoing maintenance issues: One side of the weather stripping came off months ago. Not too big of a deal, since air leakage is minimal without it, but still a nuisance. Awhile later, one of my cats was walking-around with the soft plastic "claw-proofing" bezzel (I assume it is supposed-to be) wrapped around her. Apparently it came off the backside of the flap where it must not have been too securely attached. No real harm done: cats clawing their way in has not been a problem for me. With (now) three cats, dirt builds-up on this thing pretty fast. Really needs wiping every week or two, including it's direction lock knob. Fair enough. But, the motorized catch extends from a hole in the bottom of the frame. Enough grit fell in the hole and collected around the catch arm over the course of a year, or so, to cause it to jam, keeping the cats outside. All that was needed was disassembly and cleaning, but some people will not be able to do that, or will not want to bother. Recently, the magnet on the bottom of the flap, that works with one in the frame below it to hold the door shut, fell off. This leaves the flap literally moving in the breeze. That might not sound like a problem, because the catch still works. But, the flap has gotten trapped on the inside of the closed latch, preventing the cats from leaving the house. Fortunately, I found the tiny magnet. Now, I'm off to try to glue it back into place, or otherwise reattach it somehow. Wish me luck. Does all of this justify downgrading to a three-star rating? Anybody listening at SureFlap? On a positive note, the unit has been quite happy with my modification for five 1.2V NiMh rechargeables. It runs for months and months on one charge, so long that I've recharged the batteries for other reasons, before ever seeing the low charge LED come on. Update: March 21, 2012: SureFlap nicely sent me a Mark V front frame to replace the Mark IV, and it works very well. Quieter and with a fuzzy weather stripping added. My experience with new alkalines was about three month's battery life, with four cats using the door. So, it may be that the advertised one-year battery life is for one cat. No matter, I went back to NiMh 1.2V rechargeables by adding a single AA battery holder to the side of the unit, for a total of five NiMh AAs, to give it the 6 volts it wants. Has worked beautifully for over three months on one charge of those, as would be expected. Down to four stars, though, as SureFlap really should be able to accommodate NiMh rechargeables, not just throw-into-the-landfill alkalines. Update: July 27, 2011: Operation became intermittent as new NiMh batteries aged. Works fine with alkalines. I've suggested SureFlap simply say it won't work with NiMh, rather than that they are "not recommended". I hope they will redesign the electronics to work with the lower NiMh voltage, which I assume is the problem. Many devices accept both alkaline and NiMh batteries. It's the green thing to do, after all. Maybe I will try the rechargeable alkalines they suggest, in the mean time.// Original Review: April 28, 2011: My four cats, 11, 14, 17, and 19 pounds, respectively, are nearing two months using this cat flap. The five of us could hardly be happier with it! We had a neighborhood tom using our old Johnson Pet Door at will, spraying urine around, eating our cat food, and causing a lot of angst for us all. No more! The tom sits outside, sometimes, but simply can't get in. And, I have every hope that the occasional racoons that used-to trespass are also things of the past. The door is sturdy and elegantly designed in its simplicity. One button for setup and one LED light mainly to signal when the batteries are low. Yes, batteries to replace, but therefore no other electrical installation needed. The four rechargeable Eneloop AAs I'm using have lasted two months so far. Power consumption is minimized, because the mechanism optically senses a cat entering the tunnel and that triggers the radio exchange. Very cool. The manual suggests testing if it will work with your cat's chips before you install it. For me, that just meant gently lowering it over each cat's head, in approximately the orientation as when a cat uses it for entry. It learned all four chips without a problem, making it already programmed before installation. The frame's integral short "tunnel", which is where its radio antenna coil is located, incidentally, slipped snugly inside the wall tunnel I made originally for the Jonson door. The flap and works mechanism ("inside frame") are located inside the house, so you can use any sort of tunnel to the outside. You need not buy the optional spacers SureFlap offers, if you are at all handy. I screwed my inside frame to molding around my tunnel on the inside wall of the house, by drilling-througth the flap's four holes that accept screws from the outside trim frame, which I am not using. My first reaction to the flap was that it has a much smaller area than the Johnson door the cats were accustomed-to, and that, at-least for the two bigger cats, it might simply be too small for them to fit through. I was quite worried. Happily, though, the seventeen and nineteen pounders have no trouble with the door in either direction. The frame and flap, though sturdy, are plastic and the clear flap will probably get scratched over time, to the point where it won't be easy for the cats to see who is outside before they exit. And, grit has already gotten-into the otherwise very clever four-way manual twist-lock mechanism. But cleaning that is keeping it operable, and wiping the rest of the frame and flap clean is easy. And the flap is replaceable. Air entry through the thin boarder between the flap and frame is minimal compared to the old bi-directional flip-flop rubber flap that only slowly returned to shape in winter. This flap is rigid, so the air entry gap is a fixed (small) size. Also, I infer that a newer model of SureFlap has some-sort-of weather stripping. But what peace-of-mind our multi-species household now has! Writing a review like this is an arduous chore, to me, but the ones most other's write are amazingly helpful, so I feel obliged to contribute, now and then, especially when a product deserves kudos as this one does. The SureFlap people have done a fine job developing this product. It is a winner. You almost certainly will be delighted with it.

I've had this product for a couple of years, and it works great. It only lets my cats in, and I can replace a tag if my cats lose theirs. It doesn't let any other animals in, and I can adjust the settings to allow my cats to allow them to go inside, outside, both, or neither.

I hate that it runs on batteries It works like a charm. I bought his cat flap to make a food enclosure for one of my cats, who likes to pick at dry food all day, because my other cat, who pigs out on her food, would never stop eating if not restricted to puzzle balls between meals. I made an enclosure out of plywood, 2x4s and galvanized mesh for air movement. Because the door only locks to let things IN, I flipped the door around and installed the "inside of house" portion on the inside of the enclosure. Getting my cat accustomed to the door was a challenge, since he never goes outside-outside -my cats have a DIY 9x9x9 chicken-wire completely enclosed structure (filled with catgrass and catnip plants ~_^) with tinted plastic roof panels for shade/rain protection and free access to it from the basement window, but they do not go out to roam the town-, and I had no reason to cat-flap-train him previously, but after a couple of weeks, he uses it on his own all the time, and has been for several months now. Overall, I'm very happy with my choice. It made feeding time stress (mine, probably the cats', as well) vanish completely, and fatty's diet seems to be working, now that she can't gobble all of skinny's food. I can't speak for how it works in it's intended application, but for what I bought it, it's a life-saver. As a bonus, my shelter chips all animals, so when I get another cat, if it, too, is a slow eater, the door can remember several chip numbers; programming is the push of a button, and the push of a cat (the latter of which is obviously the more difficult step ~_^) Positives - setting the memory of the flap was cake. push button, shove cat through hole.. Alternately, if you are in training phase, prop the door open, and hit the button while luring the cat through. only had to do it once before it worked, but I did it several more times just in case. Battery life seems pretty decent. I've had the same set in since I got it. Install was a breeze, seriously. Sturdy and quality materials. thusfar shows no sign of damage whatsoever Reads the microchip without problems, and I don't have to replace collar fob batteries (always a PITA) or screw around trying to figure out how to hang said fob so that it actually reads. Drawbacks Hair gets stuck over the sensor, as others have mentioned. if not caught quickly enough, some cats might get frustrated and stop using it entirely, or your pet might be stuck outside. I like to try to see him use it at least once a day to check how it's working, especially as this restricts his access to food. Can never be completely unlocked going both directions. This makes training a cat to use it a nightmare... Or it would.. I put tape over the lock part (it's a plastic bit that sticks up when locked) so the cat could get used to the loud clicking noise it makes when the lock engages or disengages. this would also be a good way to transition a cat from a non-automated door to this one, as the noise is rather loud, and must be even louder if your huge ears are right in the hole, as with a cat.