Keyless Entry Fingerprint Digital Smart Lock with Handle & Keypad: Electronic/Electric Lock with Code, App Control Biometric Deadbolt Door Knob for Front, Interior, Exterior & Bedroom Door (Silver)

We are loving this door knob! We installed it for a barn door, it was quick & easy. We put in codes, fingerprints, and set up the fobs quickly. It was very user friendly. I love having multiple pass keys to open the door Becuase we have clients that will use it. They get their own key or passcode. Great product.

I am so impressed with this lock. I have been looking for similar item with many options for a long time until I found this. This lock has so many options for locking and unlocking the door, it is impossible to use all of it. The reason I need this lock was to give other entry into the house in case of emergency as well as grant access when we are not home. This met all my needs and then some. I was definitely a buy when I saw the price. Very easy to install and easy to use. Great

Working as expected, easy to install

The product itself is great and I really love how much easier it is to use, as opposed to having to dig for my keys. The only reason for not giving 5 stars is because mounting it to the door was a bit difficult. The threads for the screws were messed up so we couldnt even get the third one in. Still works all the same though. Fingerprint works great, fob works great, and I love that I can set multiple codes for certain periods of time.

Easy to install. It is compatible with the Sifely hub and app allowing control via the internet if it needs to be unlocked to allow access to the house. The fingerprint reader is excellent and makes access simple when carrying packages. The Sifely app allows updates to the firmware even if it is not connected to a Sifely hub.

Update -- I bought a second one against my better judgement and it doesn't work. The screws stripped out and it became a huge pain in the ass to uninstall. The problem isn't with the lock itself since the functions (minus the fingerprint reader) works great. The problem is where the override lock button is located. Eventually I'll buy a different lock and move this one somewhere else, but for now it works and is a good price. Override Lock Function There is a tiny switch on the front of the knob on the house side that clicks on and off to allow you to override the other features so no one can enter the house even with a code or fingerprint assigned. However, it is in a terrible spot. If you hold onto the door and shut it as you're leaving the chances of brushing against it and triggering it and locking yourself out are VERY high. Ask me how I know. :) Anyway, if you're careful of that, you can avoid it. The second issue is my dogs have triggered the button twice now as well. It was solved with a dog gate but if you have this in an area where you can't have a dog gate and your dogs can reach the lock, you can be easily locked out. Having a function where you had to press the button down and move it in the opposite direction it was currently set might fix the issue, but I think the answer is to totally move the button to the very bottom of the unit. Fingerprint Reader Simply does not work. I have tried to register a few different fingers and done it a few different times but it never works after the initial first time setting it up.

This lock is easy to use and simple to install. We had an issue with the lock jamming after it was installed and reached out to customer service for assistance. We were so shocked that the vendor provided us with technical support and then once realized the issue could not be fixed, they offered a free replacement and also reimbursement for having the lock removed. Despite the issue we had with the faulty lock, the overall use of the lock and Derum’s customer service, is quite phenomenal!

Purchased this to replace our front door lock. Since our family usually uses the garage to enter/exit the house, we often forget to bring our keys. I wanted to have an alternative entrance (e.g. in case of a power outage or when I got out for a run). Product research was a bit confusing because there are similar looking locks branded from Sifely, Dermum, and samtechT sold by different 3rd party stores. My understanding is that they are minor rebrands of the same 2 lock models and all use the Sifely app. The older model comes in a brown box, and the newer one comes in a blue box. I received a blue box with a check mark indicating it is a black model. It comes with 2 normal looking physical keys and 2 white, unmarked key fobs. The only indication that it is a Dermum brand is on a small label on the blue box and instruction printouts. It look about 15 mins to replace the lock. The only thing I supplied was a screwdriver. I suggest watching the installation video (https://dermumstore.com/pages/dermum-s-smart-lock-tutorial) before and during install. It was compatible with the existing strike plate so I left that alone. Once it is installed, it felt very sturdy (doesn't wiggle or anything) and looked very modern/minimalistic with the black styling. You MUST pair the lock to a smartphone because anyone can do it without needing physical access to the inside (i.e. there's no initial pair button) until a Sifely account takes ownership of it. Afterwards, ownership can only be reset by using the reset button inside the battery panel. Speaking of battery, I used 4 high-capacity Eneloops. They started at 65% (not sure if its due to the lower voltage of the rechargeable battery or the state of the batteries I was using) but its stayed at that value for the past week. We love the multitude of ways of lock access. You can use passcodes (generated or user defined), e-keys (normal or admin access given to other Sifely accounts), fobs, and finger prints. Passcodes can be one time. Other digital access can be recurring (e.g. only during daylight hours on certain days of the week). You can also view the access records of the lock from the app. The only thing you can't control is the physical key and should work even if there's no power. Fingerprint access is really convenient but could have better success rate. It works great for me but a bit touchy for my wife. We use multiple fingerprints to help (e.g. "Foo Thumb" and "Foo Thumb 2") plus passcode backup. There is a physical privacy slider that will block everything except physical key and admin digital access. The lock auto relocks after a few seconds (up to as long as you want). There is no physical slider/button to leave it unlocked (e.g. contractors going in and out of the house) but you can enable passage mode in the app to do that. We love the lock and will probably replace our side door with it as well. It has the ability to mirror settings between locks so it should make setting that up easier. Update: Correct some spellings and wording. Still working well after 2 weeks.

Easy installation and very easy set up. Really liked this product and has got an amazingly competitive price. I highly recommend this product.

After only 2 months, the fingerprint stopped working and locking mechanism failed to unlock. We've been left outside several times as none of the 5 different ways to get inside (not even the physical key) worked to unlock the door. Useless and a waste of money.