🔐 Unlock the future of secure, stylish access — because your door deserves more than a key.
The IU-20 Code Door Lock is a sleek, matte black electronic door knob featuring a backlit keypad that supports up to 50 user codes and 1 master code. Designed for both residential and commercial use, it boasts IP65 waterproofing, a heavy-duty metal build, and an auto-lock function for enhanced security. With easy installation on standard doors, long-lasting battery life exceeding two years, and smart features like silent mode and password disguise, this lock offers a modern, hassle-free upgrade to your entryway security.
| Brand | iulock |
| Special Feature | Waterproof |
| Lock Type | Door lock |
| Item dimensions L x W x H | 8.07 x 4.53 x 4.53 inches |
| Material | Metal |
| Recommended Uses For Product | Security |
| Style | Contemporary |
| Color | Matte Black |
| Number of Pieces | 4 |
| Finish Type | matte |
| Controller Type | Hand Control, Mechanical knob, Push Button |
| Shape | Rectangular |
| Item Weight | 1 Pounds |
| Control Method | App |
| UPC | 781509852207 |
| Manufacturer | IULOCK |
| Item Weight | 1 pounds |
| Product Dimensions | 8.07 x 4.53 x 4.53 inches |
| Item model number | IU-20 |
| Batteries | 4 AA batteries required. |
| Finish | matte |
| Special Features | Waterproof |
| Usage | 2 Traditional keys( KW type ), 1 Master code,50 User codes, code 4-15 digit in length, waterproof IP65 (Can be used outdoors, can work when it rains),Energy saving, 4 AA batteries (batteries not included) can be used for more than 2 years,USB type-c backup,Backlit Keypad,password protection(random digits before or after the correct access code), Auto-lock (4 second), Passage Mode(Easy passage mode [√5√master code√] for easy back to auto-lock. Advanced passage[√ 0 √ master code √ 1 √] for a long time not need to auto-lock.[ master code √]to exit this passage mode, Silent Mode[Enable:√ 6 √ master code √ 0 √,Disable:√ 6 √ master code √ 1 √]. |
| Batteries Included? | No |
| Batteries Required? | No |
| Battery Cell Type | Alkaline |
| Warranty Description | Lifetime Limited Mechanical and Finish Warranty and 1-Year Limited Electronics Warranty Subject to the terms and conditions of the warranty, IULOCK extends a lifetime limited mechanical and finish warranty and a one-year limited electronics warranty to the original consumer user (“Original User”) of our IULOCK brand product (“Product”) against defects in material and workmanship, as long as the Original User occupies the residential premises upon which the Product was originally installed. |
A**S
Easy lock for gates
Easy to install and durable
A**R
Buy it now
These are amazing! Easy to install and works great. No more forgetting the key. Punch in your code and you’re good to go! So worth it!
A**R
Great lock
The instructions were very easy and I was able to program the code easily. We purchased it for an outdoor gate to keep our 6year old from running down to the river by herself. Peace of mind now.
T**R
Okay So Far
So this replaced my other similar item I bought about 5 years ago which stopped working. This one is great because if the digital does not work then you can use the key to open the door. Sometimes the knob would not engage to open the door. It just turns freely. I had to try again once or twice before the knob engages and opens the door. Hopefully this won't happen too often. Other than this issue, easy to install and program.
J**H
Didn't last long
This worked for about a year, then started only working half the time. I assumed it needed batteries but did not improve with new batteries. It would take the code and show a green light when accepted but would not unlock.I've replaced batteries again, but it only works 1/10 times now, so I have to throw it away.
C**2
Great locks for new home construction
Purchased a set of these to secure our house while under construction. Easy to program, it evens supports one time passcodes via a website without the locks needing an Internet connection to work.These should hold us over until we get Internet and power, then we'll upgrade to Internet smart locks and transition these to lock interior closets etc for our short term rental.
A**R
very impressive door knob
Very impressed with this door knobs features. I like that you can set a timer for the outer part of the door knob to self lock / disengage making it inoperative. I also like that I can give each person their individual code that needs access. well worth the money.
N**K
Designer Cans of Soup Secure House
While this might look a little like two very nice cans of soup bolted to your front door, I would emphasize "very nice." This doorknob is sturdy, simple, sleek and a few other positive words that start with S. It is produced by a U.S. company and doesn't store or share any data. I did a good amount of research, and this gem comes at steal.
