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Reviews from Happy Customers
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from 134 reviews
The Good: Works well. Options for opening. Looks good. App is well designed.
The Long Review: The Ironzon fingerprint smart door lock was a real pleasant surprise for me. I have a workshop at home and have family come by with their little ones, and there's a lot of tools I don't want small hands finding and hurting themselves on. This door lock fit the bill, allowing me to set up a more advanced locking system on an interior door, without having to go overboard or needing to carry around a key with me at all times.
Installation was a breeze, the parts literally replaced my interior door handle and lock. However, I noticed that their striker plate was this rectangle of metal, which wouldn't cover up the wood on the door frame at all. So, instead of using their new plate, I just reused the old striker plate, which gave me a perfectly fine connection with the latch, and worked as if they were designed for each other.
The app is decently designed and worked very well. Setup wasn't overly difficult, with the only rough part being that I had to listen to that horrible voice at way too high of a volume, coming out of way too tiny of a speaker. The result was almost nails on a chalkboard, but I survived, and it was worth the brief suffering once the handle and lock were installed and working.
One of the aspects I really appreciated was the variety of ways you have to unlock this. Fingerprint? Check. Digital code? Check. App? Check! I've tested each method several times, all of them working quite well. However, I did notice that the fingerprint scanner on it is fairly small. So, you might think you know where your thumb is going to land on it when you go to open the door, but if you're like me, you'll miss your mark.
That led to several minutes of frustration as I couldn't get my thumbprint to register - it wasn't the lock's fault. While programming my thumbprint, I did only one grouping of prints, and they were all near the tip - a part that I seldom have touch the plate when I go to open it. Instead, my natural grip was placing the LOWER half of my thumbprint up against the sensor. Oops! Once that was corrected, I had zero issues with the system.
While my use for this was an interior door to keep tiny hands off dangerous power tools, I think I would feel confident using this in outdoor conditions as well. The batteries are stored on the interior side, so as long as your area being secured had sufficient heat inside, you shouldn't have to worry about the batteries being drained rapidly due to cold weather.
Final Thoughts: For my first foray into smart door locks, Ironzon made it relatively painless. Installation of both app and hardware was simple and straight forward, as is daily use. I'd say it's money well spent - just save your old strike plate, you'll probably need it.

What I can tell you is everything required to replace an existing door handle is included. Even if it's a brand new door there is a template included that makes a new door easy too.
I have assembled the handle both sides and already programmed it with my thumb print. I also set-up an administrator passcode and additional passcode. Two actual keys are included so be sure to keep one out of the locked room or house, just in case. I don't feel like the keys could easily be duplicated by someone trying to gain entry at all. Installation is straight forward with a one plug connection that goes through the very center shaft of the handle.
Easy enough to understand and program I even linked the security lock to the app all free of charge. The keys function great, lots of features like auto locking or time delay. Five Stars already.
I haven't tested the battery life but it runs on 4 AAA batteries hidden in the inside handle(not included). There is also a USB-C power port on the outside of the door handle in case the batteries go completely dead. Power port is hidden very well just like the keyhole location.
When I want to enter I just place my thumb on the center pad and almost instantly click im in, and works Everytime. The passcode requires a wake up touch then enter 4 or 6 digit code and touch the # key.
The voice prompts are a great help but they can be turned down all the way so nobody wakes up to beeps or voices from the digital door lock.
This product is one of the better electronic smart door locks I've seen. Very clean look, sleek design and functions great.
Thank you.

Always wanted one of these. Firstly, I personally would never use a smart lock for my front door. But as far as these go, if these are what you want for a front door then this would do the job perfectly fine. The pictures shown are not installed in the door since this will be for my new apartment. When I install it I may update if there is anything noteworthy to say.
For my use I am going to turn the utility closet in my apartment as a secured place to store things I don't want anyone working for my landlord to access when I'm not there. Before you read my long drawn out review I would just say buy it. Good price, quality and well thought out.
I've wanted one of these for a long time but I always expected them to be cheaper in quality and gimmicky but I'm happily surprised it isnt.
I manage to put mine together without the manual so it's pretty easy if you know how door knobs go together. Seems to have good water proofing to prevent problems of water damage. The batteries are in the inside door knob and out of the weather. You can replace the batteries before they degrade and ruin the whole system or cause a fire. The whole thing is almost completely made of metal.
The 'smart' aspect of this lock is pretty thorough. Looks like it uses an app that I've used other smart devices that you can manage all in the same app. You can add multiple users code and fingerprint. Notifies you every time the door is accessed if you want it to. There is a lot of smart controo to this. I turned off the sounds because frankly it's distracting.
I also really like the fail-safes built in. If the power dies or disconnects, the outside knob has enough power to lock the door so that you have to use the key to open. That way it doesn't stay unlocked or inaccessible when the batteries die. You can also charge the batteries via USB-C.

I paint houses for a living and have removed hundreds of door locks to paint doors so I thought I would have no problem installing this one. That was not the case. I struggled for quite a while with getting wire from the one half plugged into the other side. I was using tweezers, needle nose pliers and a clamp on magnifier light and still couldn't get things lines up. I was almost sure it was impossible and was cursing the engineers in my head for making the cable so short when I studied the directions again taking special notice of the position of the half I had to plug into in the picture. I tried one more time duplicating the photo and it clipped right in without the use of tools! So my tip to you is follow the instructions especially when plugging the two halves together through the door. After that the rest of the assembly was a breeze. It was frustrating but as the picture in the instructions shows how to do it I can't deduct any stars for that. The door lock works well and you have so many options and settings through the app. You can set multiple fingerprints, use the included keychains or a generated code to open the locked door. You can set length of time it stays unlocked and even temporarily set it to passage so it stays unlocked. I haven't figured out if it's possible to set your own code at a shorter length but I haven't found a way. I also haven't spent much time trying to do so. Being a painter I often have paint on my fingers at the end of the day and the fingerprint reader rejects my print. I ran into an issue the other day where this happened and I didn't have one of the keychain fobs. I thought I was going to have to climb in through an open window when luckily I remembered I had my phone in my pocket and was able to open it with that. I'm still learning all the ins and outs but this is a very cool lock and I'm quite happy with it.

This electronic door handle is pretty nice. The quality of the build is good, and it has a bespoke app for controlling it that actually worked and allowed for the device to be properly setup. My one complaint about this is similar to other complaints about these kinds of products. I want to use this on my front door but the keypad is so large it interferes with the dead bolt area. Because I want to replace my locks with this kind of lock, I wish they'd go ahead and have it big enough to fully cover the deadbolt location. As it stands I had to use it on a different door. Once installed and setup it worked great. It does not have wifi so the app uses bluetooth.
Solid product!

Lock Handle .... Nice to use fingerprints, number code, or app .... If it fails, comes with two metal keys
Easy install .... Did need the OLD striker plate, due the the longer shape of my present door .... and the handle has the code numbers installed HORIZONTALLY, in White, so you read them sideways
Internal battery is charged by USB "C" port (cord NOT included) ..... or use 4 AAA alkaline batteries (triple A's size) (also NOT included)
App used is 'Tuya Smart' ... Adding a device is easy: Make sure the Handle has power charge .... FIRST tap the fingerprint outer button to awaken it, then find with Blue tooth ... Follow the easy steps on the screen of your phone or tablet .... Takes less than 3 minutes
Recommend you save multiple fingerprints, of different fingers, for each user .... In case you might injure one, the other will work
You also have a code number of 6-10 digits for everyone in the house to use, and each person CAN choose an additional code (you can track who is in the house by that number) ... Code can be changed often as you wish, and there's a weekly reminder too, that pops up if enabled
Settings include Auto Lock off or on, so can be used indoors on a closet or such, and left open/not locked until you wish to keep people out of it, by simply engaging the app with one click .... Passcode enabled for only so many hours, to let in a babysitter or cleaner, for example, then is removed, unless you make them a more permanent user .... Has Low Battery notification as well
Great Handle Lock, feels Thick, sturdy, easy to grab hold of ... Plastic plate shows fingerprints and needs wiped, but very worthwhile knob .... Like it a lot

So this lock was designed for single hole doors as it has a handle on it as well. You could install this on double hole doors however you will need to turn both knobs to open the door which defeats the purpose of having the electronic auto locking feature. This lock was a good choice for my steel door that previously only had one deadbolt without a actual handle which was sometimes difficult to pull open. Now I have the convenience of electronic lock plus a door handle to grab a hold of. The installation was easy and it took me less than an hour because I had to adjust the position of the strike plate afterwards to ensure the dead latch closes properly and didn't interface with the plate. This is important to ensure that the dead latch is doing its job to prevent people from prying the door open from the outside. The lock requires 4 AA batteries and it works well with rechargeable batteries but the higher capacity cells are a better choice. The keypad is off by default but when you touch the screen or sensor it will light up to reveal the digits, the backlight is bright and I do like the white colour they are much easier to read than the blue colour that other electronic locks use. One small thing to note is that the numbers are placed vertically along the length of the handle so when the handle is in the locked position the numbers end up reading sideways. Programming the lock was straight forward and can be done from the phone app once it has been paired via Bluetooth. The handle stays in the locked position until I enter my pin or fingerprint then it will unlock for a few moments which gives me enough time to open and shut the door then it returns into the locked state. This does not affect the movement of the dead latch as I can still shut my door and it will lock on its own which I find a good safety feature. I don't like the black colour though I find it will clashes with my grey door. The lock can be accessed via the phone app this is convenient as I can let guests in without having to be near the door. The battery backup feature prevents me from being locked out should the batteries ever die unexpectedly but at the same time I would need the battery pack available and if I can't enter my home to get the batteries then that poses another issue.

This is a quality product! I was skeptical for sure. So skeptical, I waited for over a full month of use before writing up this review.
I like just about everything about this smart door lock. My favorite thing about it is that both the software and hardware are very good quality. The quality of both the metal and plastic is sturdy and proportionate. Also, the software integrates very smoothly with the phone app, which is straightforward and has never given me issues. Also, the instructions and hardware are as good as or better than you might expect. The diagrams and online video were very clear, and the product even came with extra screws.
As far as the 'smartness' of the lock, I was very impressed. It has eKeys (uniquely, locally generated), passcodes (keypad), physical cards (tap/wave keychain-size squares), fingerprints, traditional metal keys, and Bluetooth (via app). (I love being able to lock my doors at night from my bed!) What's even more, multiple virtual keys can be generated; one per person if you like, or you can even set them to expire at certain times/dates. It allows multiple fingerprint users, each with around 10 different scans. Obviously, you can do the same finger multiple times, or other fingers.
The best way to put it is that this smart lock is more than most small homeowners would need, and just about everything an AirBNB / VRBO owner would want. I expect that if you were to get the whole set of locks/handles, they'd all be similar quality and integrate well with the app. Worth it.

I’ve purchased six of these Big Fingerprint Smart Door Knobs, one for each room in the house, and I couldn’t be happier with the decision. These smart locks offer the perfect combination of convenience, security, and modern design.
The fingerprint recognition is quick and accurate, making it easy for everyone in the household to access different rooms without the hassle of keys. The keyless entry and Bluetooth connectivity add an extra layer of convenience, allowing us to manage access through our smartphones and the built-in keyboard.
Installation was straightforward, and the locks have been working flawlessly since day one. The design is sleek and fits well with the decor of each room. Whether it’s for added security or just the ease of use, these smart door knobs are an excellent investment for any home.
If you’re looking to upgrade your home with smart locks, I highly recommend this product!

I purchased this to keep the snack bandits our kids out of the pantry and it is working well. Fingerprint entry is great but fingers need to be clean and dry for it to work. Instead of paying for hot school lunch everyday we get to save money by actually having enough snacks to pack a lunch for the kiddos. Was skeptical about this off brand lock but it is working just fine and it comes with two keys.

I wasn't 100% sure what to expect from this item except that I would be able to use my fingerprint to unlock my door after getting it and setting up the handle which was actually much easier than I expected I noticed that it automatically locks. Which is made my life a lot less stressful I use it for my office door so that I can protect the data on my PC and of course any products that I bring in that being said once it's locked even though the handle turns the door will not open until you use the fingerprint there are keys included and it also has a option to set up a passcode I opted out of using a passcode and I'm just using the fingerprint and key method to open the door so it's definitely worth it if you're looking for a affordable addition to the security of your home or office or any room in your home I do know it can hold multiple fingerprints but since this was being used for my personal space it only has mine on it

My first impressions of this keyless lock set was how strong it is. The unit was easy to set up and install and worked perfectly with my door. This unit runs on batteries so I am a bit concerned with how long they last and will update this review with more info as I've used it for a longer time. Overall I am very happy with this keyless lock!

I got this door lock for over three weeks and today I finally decided to install it. This is after I found out that the measures are matching with my existing traditional lock, so I don’t have to do any drilling or chipping.
Installation and initialization are quite straightforward. If you find it difficult reading the manual, you can scan the barcode on the manual’s cover and watch the YT video, which is very clear. It took me roughly 30 minutes to take out the old lock and put on this one.
The setup through the app is quite simple after I struggled for about 10 minutes to get my phone app recognize it, but once I took the battery out and re-inserted it in, the app found the lock right away. Make sure to follow the manual for setting this up because it has pretty clear instructions.
The quality of this lock seems to be a well-built and robust deadbolt. It has a solid construction and sleek design. Looks pretty modern.
The lock offers multiple unlocking options, including fingerprint recognition, a touch keypad (password), traditional keys, magnetic cards, and control through the phone app.
The response time is swift, with no noticeable delays when unlocking, and it even has voice prompts for added convenience. The lock is always secure, remaining in a locked position when not in use.
Additionally, there's an emergency USB-C power supply option. I think this allows you to unlock the door even if the batteries run out, so you won’t get locked out.
Overall, it's a reliable and versatile smart lock.

I bought this Fingerprint door lock to put on my pantry door as a deterrent from mindlessly snacking and it's worked well for that. Sure, you can still get in, but it makes you stop and think for a second if you really need whatever it is you were grazing for. It also helps if you have kids who like to grab extra snacks.
Installation was as simple as any other door knob really, with just one additional step to run the cord through the hardware and connect it on the other side. I'd say it took me about 20 minutes to take off the old one and install/program this one.

Pros:
Took me 10 minutes overall to get this thing on, 5 minutes to remove the old, and 5 minutes to install + program.
Finger printing was easy on my part, had no issues reading whatsoever
Cons:
Would be better if it allowed shorter passwords (minimum of 6)
Ability to remove existing fingerprints from the registry
Overall, it is a good product, and satisfies a need as I occasionally forget my keys or just need the ease of access if someone needs to be in my room when I am not home.
Would happily buy again