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iulock Keypad & Key Smart Door Lock, 50 User Codes, Waterproof, Auto Lock - Matte Black

  • Based on 2,116 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Monday, May 4
Order within 17 hours and 44 minutes
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Color: Matte Black


Features

  • [Keyless Entry & Stylish]This keypad door knob lock assigns up to 50 customizable 1-15 digit codes for family or stuff to experience convenience. The knob has perfect size,come with detachable silicone grip,more snug on handle.Ergonomic design can bring trendy style to modern residential and commercial exterior & interior doors.,suitable for screen, wooden and metal doors,etc.
  • [Premium Security & Durable]This electronic code door knob adopts heavy-duty design, sturdy and durable. solid lock cylinder with 2 keys that are compatible with most mechanical keys. Premium metal construction, Plating Finish. It offers the best protection against burglary or break-in. Ideal for home, rental, office, hotel, garage, and apartment, etc.
  • [Feature-rich & Smart]The keypad of this door handle has clear numbers and soft backlight, so it can be operated day or night. You can activate passage mode when you don't want it locking. Enable silent mode if you dont want to disturb. 4 AAA batteries can be used for 18 months,low battery alarm. Use type-c USB backup in case that batteries run out.
  • [Fits most doors]This password doorknob fits 1-3/8" to 2-1/2" thickness doors, with a 2-3/8" or 2-3/4" adjustable latch. options rosette rubber seal suitable for more door, Install it by yourself with just a screwdriver in minutes. It is suitable for left or right-handed doors of your bedroom ,front door entry and backdoor, etc.
  • [Reliable & Trusted Warranty]IP65 weather resistance. Quality materials and industrial circuit design ensure this door lock reliable. Can work in extreme environments (works great from -22F to 176F, rain and sun) They are awesome gifts for the people you love. Each IULOCK door lock comes with long-term warranty and 7X24 Efficient service.

Brand: iulock


Special Feature: Waterproof


Lock Type: Keypad


Item dimensions L x W x H: 7 x 4.5 x 3.1 inches


Material: Rubber


Brand Name: iulock


Recommended Uses For Product: Door


Included Components: Knob, Lock, Screwdriver


Model Number: IU-30


Manufacturer: IULOCK


Unit Count: 1.0 Count


Manufacturer 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.See answersfor specific warranty details and limitations


Item Dimensions: 7 x 4.5 x 3.1 inches


Additional Features: Waterproof


Lock Type: Keypad


Controller Type: Hand Control, Mechanical knob


Control Method: Touch


Style Name: Compatible,Heavy-duty,Modern


Color: Matte Black


Shape: Rectangular


Material Type: Rubber


Finish Types: Matte Black


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, May 4

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Easy install, great build quality and works perfectly
Color: Stain Nickel
Being used on interior door in temperature controlled environment. Cannot comment on extremes of temperature. Instructions for install and all other functions were easy to follow. NOTE: I have intermediate skills in construction, computers and electronics. My purchased security knob was put on a door that had already had the holes cut for a door knob and was replacing an existing knob. Had to do a bit of chiseling to fit latch plate as it was bigger than my old plate, but, my old latch plate would have worked. Got the silver colored knob. Old one was brass. So didn’t really match the old latch plate. Was easy to chip out with a sharp chisel and steady hand. Did a dry fit first and trace around new latch plate where the jam needed to be cut. Easy Peazy. My favorite feature is how it keeps prying eyes from learning your code by allowing you to punch in up to 41 other numbers to disguise your code. It works as long as you punch your code in the proper order somewhere in that series. Which makes using a shorter passcode less risky. You get to program your own passcodes and they can be basically any length up to a ridiculously long one. Make sure you change the master immediately though. Can also have different codes for different people. There is an app for tracking but I generally do not use apps for things like this for personal security reasons. So cannot speak to app functionality. Knob has the ability to use a key and that has a separate mechanical mechanism. Comes with two standard style keys. Both worked and mechanism was well made. Have not yet tried the USB C function to unlock when batteries die. Opens fine from inside of room because interior knob is not tied to the electronic locking function. Feels very heavy duty. Will be used infrequently. But will update this review if needed in the future. Am considering getting another for exterior door. Am very pleased with this security knob. It is well thought out and the functions I have tried have all worked well. ... show more
Reviewed in the United States on January 21, 2026 by EJ

  • Great smart door lock.
Color: Matte Black
Easy installation and use, great set of options to configure, also feels sturdy. For indoors the lock works really well, haven't proved on outdoors. 2 Keys included and works just fine. Size feels more on the big side but between the limits of the size of a normal knob. Good value for money. Haven't tested app connection and settings. ... show more
Reviewed in the United States on January 31, 2026 by Boris

  • Handle grip slipping? Put grip tape under it!
Color: Black
7 months in, and these are still working great. Guests always compliment the feel of the grippy handle, but that began to slip and stretch a few months in. Easily fixed by putting grip tape underneath (I got prodigy core fusion tape here on amazon). Good as new! Still no sign of batteries needing replacement. ... show more
Reviewed in the United States on March 16, 2026 by Mac User

  • Exactly what I wanted
Color: Stain Nickel
This is new, but if it begins to fail, I'll update as needed. Pro: Lock is very nice looking. It's very modern, and sleek. It was easy to follow the step by step instructions to change and add a code. It comes with an app you can use to get temporary codes. It autolocks so you don't have to worry about forgetting to lock your door. It has a rubber grip that makes it easy to open on the inside and the outside of your hands are wet or slippery. The rubber grip is also a godsend since I live in Florida and my house is East facing. I get 6-8 hrs of direct sunlight in the front of the house, and my old door knob would get extremely hot. You can charge the Lock via usb-c if needed, but that is more so the backup battery. Main power comes from AAA batteries. It comes with a template if you need to make the holes, mine fit perfectly in the holes that were already there from my old Lock. Cons: There are no installation instructions. So, if you've never replaced a lock or door knob, you would have to youtube a video or something. I have replaced my locks enough times to know how to do it. And the insides have marking that show which side goes up which made it way easier to install. The batteries were not included. The tiny connector cable was folded on itself so when I needed to thread it thru the middle of the lock to connect it to the power source, I had to use soldering tweezers to get it thru. The cable itself kept bending inside of the lock and would get stuck half way thru. All in all, for the price, I think it is a great lock and would recommend. It took me about 15 mins to install, but that is only due to the cable not wanting to come thru the lock. I am extremely happy with this purchase. It's not perfect, but it is exactly what I wanted/needed. I do need to check and see if the seller sells extra rubber grips due to one of my dogs having severe anxiety and sometimes chewing on the door knob. But that is my issue, not the sellers. ... show more
Reviewed in the United States on October 29, 2025 by ChrissyPoohWasNeverHere

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