Dermum Smart Lock, Fingerprint Door Lock, Keyless Entry Door
$129.99
Product Overview
The Dermum Smart Lock is a keyless entry door lock designed to deliver modern, secure, and convenient access control for residential doors. Engineered with both homeowners and short-term rental hosts in mind, this smart lock integrates advanced security technology into everyday routines, eliminating the frustrations of traditional keys. With five distinct unlocking methods—fingerprint recognition, digital passcode, key fob, physical keys, and smartphone app—the Dermum Smart Lock ensures you’re never locked out due to lost or forgotten keys.
What sets this smart lock apart is its seamless blend of innovation and practicality. The fingerprint sensor is built directly into the door handle, allowing users to unlock the door in a single motion: simply place your thumb on the sensor and turn the handle. This intuitive design reduces steps and enhances daily convenience without compromising security. Whether you’re returning from a long day at work or welcoming guests to your vacation rental, the Dermum Smart Lock offers effortless access with peace of mind.
Key Features
- Patented Fingerprint Sensor on Handle: Unlike traditional smart locks that require separate buttons or scanners, Dermum’s fingerprint sensor is integrated into the door handle. This allows for one-step unlocking—just touch your thumb to the sensor and turn. The system quickly recognizes registered fingerprints, ensuring fast, secure entry.
- Five Flexible Unlock Methods: Enjoy unparalleled flexibility with five ways to unlock your door:
- Fingerprint: Instant recognition for registered users.
- Digital Passcode: Create and assign unique codes for family members or guests.
- Key Fob: Compact remote access for trusted individuals.
- Physical Keys: Always have a backup when needed.
- Smartphone App: Control and monitor access remotely via your mobile device.
This redundancy ensures you’re never stranded outside, whether it’s due to a drained phone battery, forgotten code, or technical glitch.
- Remote Code Sharing for Rental Hosts: Ideal for Airbnb hosts, property managers, and self-housing residents, the Dermum Smart Lock allows you to generate and share temporary access codes remotely. Grant entry to guests or service providers without being physically present, streamlining check-ins and enhancing property management efficiency.
- Auto-Lock Function: Forgot to lock the door? No problem. The auto-lock feature automatically secures the door after a set period if it hasn’t been manually locked. This adds an essential layer of security, especially useful during travel or busy days.
- DIY Installation with No Extra Drilling: Designed for quick, hassle-free setup, the Dermum Smart Lock installs in minutes using just a Phillips screwdriver. It’s compatible with standard doors equipped with existing deadbolts, making it a practical upgrade for most homes without requiring structural modifications or professional installation.
Technical Specifications
- Unlock Methods: Fingerprint, Digital Passcode, Key Fob, Physical Keys, Smartphone App
- Installation: DIY (Do-It-Yourself) with Phillips screwdriver; no additional drilling or locksmith required
- Compatibility: Standard residential doors with existing deadbolt systems
- Power Source: Battery-operated (battery type not specified; typical AA or coin-cell depending on model)
- Included in Package: Smart lock unit, key fob(s), backup keys, mounting hardware, user manual
- Security Protocol: Encrypted fingerprint data storage; no connectivity protocol details provided
Benefits & Use Cases
The Dermum Smart Lock is engineered to improve both security and convenience across a variety of lifestyles. Homeowners appreciate the elimination of key-related stress—lost keys, stolen copies, or being locked out after forgetting to bring them. The ability to create and manage multiple access codes makes it easy to give trusted family members or housekeepers entry without physical keys.
For short-term rental hosts managing Airbnb properties, vacation rentals, or shared housing arrangements, the remote code generation feature is a game-changer. You can grant time-sensitive access to guests upon arrival, revoke codes after checkout, and monitor entry activity through the app. This enhances guest experience while reducing the risks associated with handing over physical keys.
Frequent travelers and busy professionals benefit from the auto-lock function, which ensures their home remains secure even if they rush out the door. The inclusion of physical keys as a fallback provides added reassurance during power outages or app malfunctions.
Because the lock installs easily onto existing door hardware, it’s a cost-effective way to modernize older homes without major renovations. Whether upgrading a front door, back entrance, or rental property, the Dermum Smart Lock adapts to real-world needs with minimal disruption.
Important Notes
- This product does not include detailed technical specifications such as exact battery life duration, specific wireless connectivity protocols (e.g., Bluetooth version), encryption standards, or weather resistance ratings (e.g., IP rating for outdoor use).
- Installation success depends on proper alignment between the lock mechanism and your door’s deadbolt and strike plate. While no extra drilling is required, some users may need to adjust the latch position depending on door thickness or wear. A Phillips screwdriver is the only tool required.
- Package contents typically include the main lock unit, one or more key fobs, two physical backup keys, mounting screws, and clear instructions. Professional installation services are not included.
- While fingerprint recognition works reliably under normal conditions, factors like wet or dirty fingers, extreme temperatures, or damaged sensors may affect performance. In such cases, alternative unlock methods should be used.
Dermum is committed to enhancing everyday living through thoughtful innovation. Our smart locks are designed with user needs at the core—offering security, simplicity, and smart functionality in one elegant solution. Redefine how you access your space with the Dermum Smart Lock.








Deborah –
The best of the best!
This was easy to install. I’m a 60 year old female. I just switched places with my dead bolt and this lock. Installing was not bad- just follow directions. I love that it has 4 AA battery compartment on inside. Nothing to take apart to replace. The peace of mind is good knowing you have fingerprint access, key access, card access as well as phone app access. I highly recommend! You won’t go wrong with this one! There are qr codes on the instructions to scan to get access to instructions as well. Download the Sifely app from your Google/apple playstore. Not hard to navigate. You set up your codes on the app…
John –
Easy to Install. Easy to use.
Sifely has gone out of their way to make the installation as easy as possible. Everything is carefully planned and thought out. I think this bodes well for the integrity of the product. The picture shows how they provided a bag of screws labeled for each step of the installation. Who does this?! Well done. But if you aren’t impressed by that, maybe the extra bag of screws marked spares will impress you, it did me. One extra of every screw. The functionality of the product reflects the thoughtfulness of the installation. I am a non business home owner who bought this because I didn’t want to carry a key around with me to unlock a door and didn’t want to hide a key. The fingerprint integrated into the handle is so clever. The same motion as before, grab the handle an turn opens my door. I have a passcode to back that up and a key card to back that up too. The key card is thin and smaller than a credit card and hides easily in my phone case or wallet which I always have with me. You don’t need to take it out, just hold you wallet up to the keypad and it opens the door. The app is very intuitive and easy to use. I also got the Gateway so I can check on the status of my lock while I am away and even let people in. One note on the Gateway G2. It has the gateway and USB cable and that’s it. You will need a USB power source, it does not come with one. My only other minor critique as a replacement for a home door handle, it does not provide a way on the inside to manually activate the lock without going outside and activating it from the keypad. BUT, you can lock it from your app or have the door always lock behind you on a pre programmed timer after you enter. There is so much flexibility with the product, you are almost certain to find a configuration that will work for your lifestyle. I am considering a second one for the other most popular door in the house.
GMH –
Only works on dry sunny days
If the weather is good, the lock works great. If it is cold or even worse, raining, the keypad simply doesn’t work. The remote entry from the phone won’t work either, and if it is raining, brand new batteries will be drained within an hour. Even on good weather days the batteries need to be replaced often. This lock has been nothing but trouble. It has been checked and verified that the lock was installed properly.
Johnny M –
Extremely easy install
Purchased 2 of these to trial them out. Install could not have been any easier. All the parts are labeled and step by step direction are well written. My only hang up is that when you touch the screen to bring up the numbers, itâs not as responsive. Requires a few touches with some pressure but the fingerprint and keys work well. The other hangup is that the app reads 60 percent despite new batteries. Not sure what to take from that but the lock itself is sturdy and there are a lot of customizations in the app itself.
Lianna –
GOOD INVESTMENT
Good item for the price! Just installed today so i canât speak much on longevity however – it was installed for my commercial property where tenants will be in & out and i wonât always want them to have a key. I can unlock it for them OR preset a code that will turn on and cut off for a certain day/time! The key fobs make things a breeze as i do have some elderly family that has a hard time remembering the code or entering it – i can give them a keyfob or unlock it for them.Gateway is funny working, and sometimes doesnât, weâll see how it holds up.
Kun G. –
Battery runs off too quickly
It worked fine for the first a couple of months, then the battery started to run off quickly. Now I have to change it every other week…very inconvenient
David Gilmore –
Wow – what a product!
I bought this digital lock being skeptical about how “easy to install” it would be. But it really was. They provide a video of how to install it step-by-step. The app for your phone is brilliant – it senses there’s a door nearby that needs to be added and does so. Then quite simply and easily you can add your biometric scan. It’s all very well designed and the product seems heavy duty and solid. I’m a fan. No more fumbling with keys in the dark or needing to change the lock when you have a new housemate. You can simply go on the app and delete their access instantly.
Jeffery Parker –
Life made easier
If you purchase this door lock, you will ask yourself how in the world you didnât purchase earlier, this is the best thing I have changed to my house in a long time. Super easy to setup, app works flawlessly, Just remember to use the best batteries available. Just the knowledge that you will never be locked out of your home and your house is more secure then ever, buy it , you will not be disappointed