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From the brand
HARFO door lock – delivers you security & convenience with its reliable and advanced technology.
After research and development,we developed new series fingerprint locks. Harfo is committed to creating high-quality, high-performance, door locks to meet your needs.
APP Fingerprint Door Lock
[5 in 1 Smart Door Lock] 5 unlock ways : Fingerprint + Passcode + IC Cards + APP Control + Physical Keys. Fingerprint door lock support remotely unlock and work with Alexa/Google Assistant support voice control (Need to pair with gateway, sold separately)
[Remote Control / WiFi Access]Paired the keyless entry door lock with Harfo wi-fi Gateway (sold separately), you can lock/unlock your keyless entry door lock anytime anywhere, you can set up codes remotely and check access records.
[Easy to Install] No extra drills needed and no locksmith needed. The fingerprint lock is super easy to install in minutes with just a phillips screwdriver. Reversible door handle is suitable for both left or right handed doors. Door thickness range: 1 3/8 inch to 2 3/16 inch 35mm-55mm thick.
[Security Function Keyless Lock] Auto-Lock, Anti-peep & Private Mode Function door locks with keypads will be safer for your home. You can authorize multiple administrators, and generate permanent, one-time, or customized passcode for friends, guests, housekeepers.
[300 Users & Double Assurance] 300 Users capacity include fingerprint ,passcode, Ic card. If the lock’s battery runs out, you can use backup key to unlock the lock. Also there is a emergency usb port under the lock, we can use a power bank to charge the lock only as a tempory power supply then we can unlock the lock.
Brian Kebschull –
Great lock with lots of features and excellent app
This lock is great. It has lots of features and everything works well.Installation was simple. A template for hole is provided for hole cutouts if you are installing it on a new door.I bought it for my bedroom door, and the main requirement was that it have a good fingerprint reader, so that I could get in quickly without needing a key or to punch in a code. The reader works very well and very fast, I’d say less than half a second to open. One thing I love about it is that the reader is angled at roughly a 45 degree angle, which makes putting a finger on it (I typically use my thumb) more comfortable than most fingerprint locks, which have vertical fingerprint readers. That may seem like a little thing, but it just feels like a more natural and ergonomic position.You can set up numerical codes (I think between 4 and 10 digits), and they can be permanent, one time use, or time-based. So, for example, you can set up a code that works from 4pm on Friday until noon on Sunday, so it’s perfect for an AirBnB, houseguest, maid, etc. The code entry also worked flawlessly.Three keycards are included. You just put the keycard up against the keypad and the lock opens instantly. Honestly, I don’t really foresee using them – as great as they work, I’ll just use the fingerprint reader and avoid having to take anything out of my pocket.The backup keys provided in case of power failure (i.e., dead batteries) work fine. One minor nitpick is that the keyhole is hidden behind the face of the front handle, accessed by pushing on one end of the handle. It works fine, but my question is, will I remember 5 years from now (or whenever) how to access the keyhole?The TTLock app is really good too. That was a bit surprising to me, since a lot of apps for these kinds of things seem like afterthoughts. This one is intuitive and easy to use.If you have the gateway for the lock (purchased separately), it connects to the internet though your WiFi, and then you can even open the lock remotely. That’s a feature I’m not planning to purchase, but I can see how it could come in handy for some people.There are a couple of features that I had not read about that I like. One is that the time that the door stays unlocked after being opened is very customizable (default is 5 seconds) through the app. Another is that you can set a daily period of time during which the door will stay unlocked, and then lock automatically. So, for example, you could leave it unlocked at night so that if the kids get scared, they can come in without them having to knock and you having to go open the door.The 4 AA batteries are easily installed. You need to remove one screw to access the batteries.A couple of minor niggles: I got the lock in aged bronze, which looks great, but the latch bolt and strike plate are both silver – would be nice if they were also aged bronze to match. Also, one thing I could do without is the voice saying “unlocked” when the door is unlocked and “locked” when it automatically locks again. You can control the volume of the voice by a setting in the app, but can’t turn it off entirely. I think it’s unnecessary, as there is a light that briefly turns green when the lock unlocks, and you can hear the it unlock and lock, so to me the voice confirmation isn’t needed.But overall, this is as perfect an electronic lock as I’ve found. I can’t vouch for its durability, since I’ve only recently installed it, but I’m very happy with this purchase, and I’m thinking about buying one for my garage.
G. –
Love these locks after figuring out how to program
I bought and installed 3 of these locks back in July 2024 for an apartment building we purchased. My contractor misplaced the full programming instructions which caused us many problems. We were unable to program them. Once we found the instructions i was able to figure them out and love, love, love how sophisticated these locks are. I wrote — and now corrected — my unfairly critical review. I hope these locks last a long time as they are amazing – though not perfect. Programming them is not intuitive. You need to carefully read and follow the instructions. The instructions could also be clearer and customer service could not be found when we lost the instructions. (Someone contacted me after i wrote the bad Amazon review). I have yet to try to program the little electronic squares that came with the locks. But i was able to generate — and then change — the long (10 digit) permanent passcodes for all three and get them all set up to work on the app on my phone. You’ve got to accept and use the very long passcode generated once and then you can easily change it to something smaller and unique. I was also able to set up the fingerprint keypad on one of them (which is a crazy cool feature). I just touch the pad and the lock unlocks. But I had a problem with setting up the second one to read my fingerprint. Despite any shortcomings, I’m going to buy twelve or more of these locks to replace all of the locks in the place (it’s an 8 plex). For the power of these locks the price is amazing. It’s strange to be excited about a lock but these things are truly great (so far at least). Once you figure out how to program them (which, again is not that difficult in fact with proper instructions). One other suggestion: i have not yet found any way for the tenant/occupant to keep the lock unlocked; it always seems to lock automatically. There’s probably a way to do this using the app (don’t know yet) but there should be a button on the lock itself since the tenants will not have the app. Also, i dont know whether there is a way to copy the single, special key that came with each lock. Doubt it. Pretty certain that this key could never be copied by any regular locksmith so if you lost this one key you could be screwed. Now that I know how to program the locks however I’m not as concerned about this risk. Love these locks overall.
AmazingBuys2020 –
Fancy but unreliable. Old fashioned keys don’t fail.
Expect to get locked out at the worst possible time.The unit did just that, it’s mechanically well made but the electronics have issues, at a casual locking, carring with me no key, nor my cellphone, the lock stopped responding to my fingerprint and to the passcode too. I didn’t get a new fingerprint, it’s been the same forever. Bateries were alcaline and new.Connecting to a power bank via USB cable made no difference.After about an hour trying get the thing to let me into my place, I had to resort to a hammer and chisel, the lock is well built, but finally I was able to break it open, not without damaging my door in the process.I recommend leaving a spare key hidden somewhere outside just in case you forgot your keychain when you exited. (I guess not under the door mat).I got used to unlocking using my fingerprint or password, but that’s exactly what failed on it.The privacy switch in the inside plate was set to general, not privacy, which prevents opening the door, I had tried it in the past and was aware of that feature.
Suki –
Worked for a few months then broke – Seller Sent Replacement
Initially the lock was great. It had a lot of functions with the app control, passcodes, and fingerprint option. It was convenient and worked for about 4 months but then it suddenly broke. Out of the blue the lock would say it was unlocking but would remain locked. I was locked out for a while and ended up having to break it to get back in.I have another electronic lock from a different brand that’s lasted a year with no issue. The price point was similar so for a lock at this price to stop working after such a short time is unacceptable.Update: Seller reached out to me and sent me a replacement lock. So far the new lock is working fine.
Amazon Customer –
Little confusion around whether it is locked now or unlocked unless voice says so.. voice is good.