Invisible Cabinet Lock, Hidden NFC Lock DIY RFID Latch with USB Cable Power for Wooden Drawer Liquor Cabinet Open and Close Pantry Secret Shelf or Concealed Panel

The media could not be loaded. Cool gadget... I was looking for ways to lock up tools and electronics in a dorm room. Bought some ottomans and thought these looked much more fun than keyed locking hardware. Bought two sets to give it a shot. Each came with three cards and three fobs. Bought batteries (separately) set up the master fob and added the same to both locks. Very easy to program, I quickly added all cards and fobs to operate both locks. Once we played with those for a while we decided to install.There were no instructions but installation was very easy to figure out. The locks came with all the hardware needed for a full install. We used a drill with bit and chalk as the only tools.For the chest, we first found the height needed for the device. Then, installed the battery box to the side wall. Chalked the back of the piece that needed to attach to the lid. This gave us exactly where it needed to be to fit and lock. Tried it a few times to make sure we aligned it correct and then tightened it. Probably ten minutes or less to install with the most time just rechecking we had it in position.As a bonus the card and fob both work through the wood wall of the ottoman. My son put the card in his wallet and slid it next to it to unlock and worked every time. Bottom line, we didn’t have to drill through anything.One box came with a sticker to add on the outside as a target to know where to set your rifd device. But that would alert folks to the fact there is stuff in these.These have just been installed so I do not know about the life of the units... who knows we may be cursing these down the road, if they fail to open. So far so good.As far as how tight... my son was able to pick up the entire ottoman by grabbing the lid and the lock didn’t open. Completely loving the ease of install and adding a fun gadget to a boring ottoman that will be a dorm room foot locker.

They work great in consumer shells or cabinets

For the price you can’t really beat this. The thing works great, easy to program and plenty of spare cards or keychains.If you are hoping to use it with your iPhone, don’t count on it. They say “just setup a transit card to unlock the device”. Apples nfc doesn’t work that way, it won’t send the same signal every time. Is a security thing I browsed the Apple developer pages for this. The maker of this will say to get a Chinese transit card but you have to get an international debit card, load money and then hope it works. It’s really not the best solution and I have found others who have went through the process and they weren’t successful.Android users I don’t think you have this issue.I still give it a good rating despite buying it for the iPhone use. It works well and will fit my needs even if I have to use a card like an animal.

I can see why other reviewers may have struggled with the instructions which are very limited and translated poorly. However, if you have just a bit of experience with electronics, it's not really hard to figure out. Initial programming took a few passes since I was following the nutty instructions precisely, but I eventually just tried a simplified version of the "Master key" programming, and it's worked flawlessly ever since. Make sure to read the details, there are some things to account for on installation with the limited features (USB power vs battery), but if you need a cheap NFC lock for a project or to discourage someone from opening a cabinet-style door, this is great. Installation and aligning the lock is easy if you just attach the double-sided tape on the lock and allow it to stick to the door when you shut it. It aligns perfectly and you just add the screws. Love the bundle of cards and keyfobs in the package.

UPDATE: Since these are still somehow for sale, I thought they HAD to fix the squared-off pin problem. I ordered a small sample (just 10 locks) and every single one of them is still un-tapered and completely useless. The only conceivable way this lock works is if you use it on a drawer (because the engagement is straight on). If you somehow manage to get this squared-off locking pin to engage on a hinged door, don't breathe on it because there's zero margin for error. Trust me, as someone who has installed over 1,000 locks that look exactly like this, DO NOT BUY this brand. Everyone else tapers the locking pin and they all engage perfectly. Plenty of other options here on Amazon. Side note... This is why you should always buy stuff from Amazon. Returning this steaming pile of garbage was, as always, fast and easy. I've already ordered 40 Wooch brand locks to replace these, and I know those will be good because they always are.(Original review)I purchase and install more than 500 of these locks each year, and all I want is for them to STOP CUTTING CORNERS. Every time I find a brand that seems to work, they change something and make my life miserable.This brand was great, with strong RFID fobs and nice packaging. But my latest order, totaling 90 locks, came with the locking pin not tapered. This makes the lock not only useless, but absolutely infuriating to work with. Without a taper, the pin just hangs up on the latch and instead of the lock engaging, you just get a solid THUNK of metal-on-metal.The fix is simple, but a massive waste of time. I've had to disassemble every freaking one of these and file down the edges of the pin, then rebuild the lock before I can install them. The fix works, but more than triples my install time.I would have sent all 90 of these back, but I desperately needed locks and I don't know who else to trust.2 stars despite this idiocy because, side from this one issue these are the best I've found so far. Scratch that, there's another one, white with an external power jack, that is far better, but more expensive.I would buy hundreds of these at once if someone could just guarantee I'd get locks that actually work.

The media could not be loaded. This worked great on my normal door that opened outward