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Your cart is empty.Product Description
Accurate Fngerprint Recognition
Unlock the lock just need a fingerprint touching.
Faster unlocking speed , more convenient than bring keys.
One Touch to Unlock
Your phone is the key. Full app control is convenient and secure. You can check your digital lock data anytime anywhere.
Smart Function
You can turn on the passage mode on to keep the lock stay unlock status as your needs.
Never forget to lock on the way out. Auto-lock function will lock it behind you, always be safe.
Send eKey
You can generate Timed/Permanent/One-time/Recurring code for your friend and guest, and erase them whenever you need to.
Up to 300 Users
Super large user quantity keyless lock. Fingerprint + Card +Passcode Up to 300. Even if you install in an office, the number of users is sufficient
Check Unlock Records
You can check your lock unlock records on your phnone app anytime anywhere. Keyless locks with APP function make your home safer and more convenience!
Anti-Peep Password
Anti-Peep feature will privacy when necessary. You just need to add random digits before or after the real passcode to open the door for you.
Low Energy Usage
This smart door lock needs 4pcs 1.5V AA dry batteries (No include) go up to a year without worrying about the batteries. Rechargeable batteries are not recommended, because most rechargeable battery's voltage is 1.2V.
Backup Key & Usb Power Port
When the power is critically low, the lock will alarm you by display and voices. If the battery is completely drained, don't worry. Use the backup key to open the door. Micro USB power bank also can be a temporary power supply.
Reversible Door Handle
Reversible handle is suitable for right-handed door and left-handed door.
Please note use L wrench (include) to change the door handle direction.
Door Lock Dimension
- Fit the U.S. standard knob hole size.(diam 2 1⁄8” 54mm)
- Adjustable Deadbolt Mortise : 2 3⁄8” (60mm) or 1 3⁄4” (70mm)
- Fit door thickness from 1 3⁄8 inch(35mm) to 2 3⁄16 inch(55mm
Idea Gift for your Family/Friend
Choose our security lock for your family or friends, make their life more convenient.
Let them enjoy and experience smart life.
Bradley C
Reviewed in the United States on May 21, 2025
Installation instructions were easy to follow and had the lock set up quicker than I thought! I've used other locks and the quality of this one is far and away the nicest. Everything feels premium from the finish to the components! Had an issue with the lock but Ann with their Customer Service Team quickly helped remedy it and went above and beyond to help! This lock give me peace of mind that my office is safe and sound when I'm not there. Great features and many ways to connect to the lock! If you're looking for the best lock, look no further than this one!
JOSE
Reviewed in the United States on May 20, 2025
This lock is great. Just love it. Easy to install nicely packed.Customer service is excellent with prompt answers and solutions.
Robert
Reviewed in the United States on May 19, 2025
I was impressed with this lock at the start, but it started going down hill quick. 3months in I noticed it would randomly be talking when no one was interacting with it. Then the private lock would kick on without the switch on resulting with the only way to open was with the phone. Now it says its unlocked but the outside handle won't engage so its become useless.
ANNA
Reviewed in the United States on May 17, 2025
This is a great smart lock very easy to install, program and manage. I have purchased 5 locks and I am very satisfied with the purchase. Also if you ever need customer support they are very helpful, quick respondents and professional.
Steve S.
Reviewed in the United States on March 23, 2025
I had an older model that worked for about 2 years. The entire time I could only get the fingerprint scanning to work about 15% of the time, and the unit finally just failed open. The electronics made all the right noises but the lock was completely disengaged. This time I can tell the construction is MUCH more solid, and the fingerprint scanning is FLAWLESS. The TT mobile app works well and is easy to set up. I highly recommend this item. And quite honestly, that’s the first time I’ve said that about ANY Amazon purchase. If you buy it, you will be very happy with this unit.
Carlos A Trujillo
Reviewed in the United States on April 28, 2025
Excelente cerradura. La tengo instalada en 2 puertas de oficina. Tuve un problema cuando se averió el sistema que abre una de las puertas. Le escribi a Harfo enviando un video con el problema. Ann Wang me envió una nueva cerradura. Me respondieron rapidamente.
Chris
Reviewed in the United States on September 23, 2024
Mechanically, the door does not consistently open when unlocked. The internal mechanism seems to be damaged. The lock has only been installed for a month. DO NOT PURCHASE.Update:The vendor replaced the broken lock free of charge after I'd like a negative review. After reading more reviews it seems the lock fails everyone after 6 months to 12 months. Although the lock has great features, connects to my Wi-Fi Hub so that I can work with it from home and get notifications anywhere, I am concerned that the lock will fail again. Overall it's a great device that needs to be mechanically more sound.
Cris5549
Reviewed in the United States on November 11, 2024
Bought this door knob 2 times during a period of 2 weeks. The first one ordered had the ribbon cable connection broken and therefore could not be installed. I returned it and had a replacement on the way. The second one was perfect, everything worked properly. I am very pleased in terms of how easy it is to set up via the app, adding and removing team members. We bought this for our business for a low security entry way. This lock is used 20+ times daily and will see the effects on the batteries.
Sam Thang
Reviewed in Canada on August 8, 2023
I purchased this door lock in late 2022 and just recently installed it in Jul 2023. It seems the program in the lock itself is corrupted and it didn't work as per the manual. I asked for help with clips of video with the problems. Anna Wang from HARFO responded. She replied the next day and tell me that She is sending a new unit to my office. In about 1.5 weeks, the new lock arrived. I installed the lock and it works fine. I want to express my appreciation for the service and product support. Sam.
keddy
Reviewed in Canada on November 2, 2023
Pour ma port
Doggerdave
Reviewed in Canada on January 19, 2023
Do not buy this item if you're not slightly handy. You will need to drill an extra hole in order to mount this handle. Fingerprint reader works most of the time. The cards are an awesome feature.
george
Reviewed in Canada on November 30, 2022
This smart door lock is harder to install than others, and it's also inconvenient to use. After unlocking, you have to press the door handle to open the door. As long as the general smart lock unlocks the door, you can enter by pushing the door.
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