Enhance your home or office security with the IULOCK Keypad Door Knob Lock – a perfect blend of style, durability, and advanced functionality. This modern lock supports up to 50 customizable 1-15 digit codes, offering convenience for family or staff. Its ergonomic design features a detachable silicone grip for a comfortable, trendy touch, suitable for wooden, metal, or screen doors. Crafted with premium metal and a solid lock cylinder, it provides superior protection against break-ins and comes with 2 mechanical keys for backup. The keypad boasts clear, softly backlit numbers for easy day or night use, with silent and passage modes to suit your preferences. Powered by 4 AAA batteries lasting up to 18 months, it also includes a Type-C USB backup for emergencies. Compatible with doors 1-3/8" to 2-1/2" thick and adjustable latch sizes, installation is quick and simple. IP65-rated weather resistance ensures reliable performance in extreme conditions, backed by a long-term warranty and 24/7 customer support. Secure your space with style and confidence today!
Keypad & Key Smart Door Lock, 50 User Codes, Waterproof, Auto Lock - Matte Black
Experience the ultimate security and convenience with the IU-30 Matte Black Smart Door Lock. Featuring 50 user codes, waterproof design, and an auto-lock feature, this lock offers unmatched durability and style while ensuring flexible access control for your home or office.
The IU-30 represents the second generation of keypad door knob locks by iulock, designed with a perfect size and removable silicone gripper to snugly fit onto handles. This versatile lock replaces traditional mechanical doorknobs and levers, enhancing security with advanced technology.
Equipped with an auto-lock feature that activates 4 seconds after the door is opened, providing peace of mind that your door is always secured. The auto-lock timer can be easily programmed to suit your preferences.
High weather resistance thanks to special waterproof technology inside the knob, ensuring reliable performance even in sunny or rainy outdoor environments without compromising functionality.
Features low power consumption using 4 AAA alkaline batteries that last over 18 months, along with a proactive low battery alarm notifying you two months in advance to prevent unexpected power loss.
Designed to function flawlessly across a wide temperature range from -22°F to 176°F, this lock undergoes strict testing to guarantee smooth operation in any climate condition.
Supports multiple access options with 1 master code and up to 50 user codes. Each code can range from 1 to 15 digits, providing plenty of flexibility for family, friends, or staff access.
Silent mode option allows you to disable beeping sounds when preferred, enabling discreet operation without disturbing the surrounding environment.
Advanced passcode protection allows you to enter random digits before or after the correct code, preventing code exposure and enhancing security against prying eyes.
Two passage mode settings available: Easy passage mode for quick return to auto-lock, and Advanced passage mode for extended periods without auto-lock, adapting to your lifestyle needs.
What's in the package
1 x IU-30 Electronic Door Knob Lock
2 x Keys (Compatible with KW1)
1 x User Manual
1 x Screw Set
1 x Strike Plastic Box
1 x Strike Plate
2 x Rosette Rubber Seal
2 x Knob Rubber Grip (Assembled on the knob)
When installed on metal doors, the rosette rubber seal protects your door from rain and dust intrusion, increasing durability and maintaining a clean finish.
Door Thickness: 1-3/8" to 2-1/2"
Backset: 2-3/8" or 2-3/4"
Rosette Diameter: 3-1/8"
Knob Length: 2-3/4" (single side)
When installed on wooden doors, two small studs within the rosette provide a more secure and stable fit for the lock. This ensures longevity and robustness in various door materials.
IMPORTANT NOTE
INSTALLATION
The IU-30 lock is easy to install; please consult the user manual for detailed instructions. Pay special attention to the warning section to ensure correct setup.
MASTER CODE
The master code must always exist, can be modified but not deleted. Change it upon initial use to secure your lock effectively.
Installation is made simple with the comprehensive manual and intuitive design. Easily upgrade your door security without professional help.
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Size
S
M
L
XL
Men
7-10
10-13
13-15
15-17
Women
7-9
10-12
13-14
15-16
Example Shown : SIZE XL, Hem to Hem 84cm OR 33 ,SIZE L, Hem to Hem 84cm OR 33 ,SIZE M, Hem to Hem 84cm OR 33 ,SIZE S, Hem to Hem 84cm OR 33
Rated 5.00 on the scale 1 - 5 based on 3 customer reviews
Chris M.
10/30/2025
The Perfect Upgrade for My Forgetful Self!
After locking myself out of my home twice in one month (don’t judge!), I decided it was time for a change. This keypad door knob was exactly what I needed—setting up codes for my family was a breeze, and the silicone grip feels surprisingly comfy. Looks great on my door and I feel so much more secure now!
Tamara F.
10/30/2025
Peace of Mind and No More Fumbling for Keys!
After too many mornings spent searching for my keys while juggling coffee and work bags, I decided my old door knob had to go. Installing the IULOCK Keypad Door Knob Lock was honestly a breath of fresh air! I love being able to set unique codes for my kids and housekeeper, plus the backlit keypad is a total lifesaver when I’m coming home late.
Carter M.
10/30/2025
Why I Finally Sleep Better at Night
After a string of package thefts and a faulty old lock in my home office, I searched for a secure, stylish solution—and landed on the IULOCK Keypad Door Knob Lock. Now, issuing temporary codes to coworkers or dog walkers is a breeze, and the solid metal build feels reassuring every time I lock up. Glancing at the softly lit keypad late at night, I finally feel safe and at ease—there’s a real peace of mind knowing my space is protected.
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The IU-30 represents the second generation of keypad door knob locks by iulock, designed with a perfect size and removable silicone gripper to snugly fit onto handles. This versatile lock replaces traditional mechanical doorknobs and levers, enhancing security with advanced technology.
Installation is made simple with the comprehensive manual and intuitive design. Easily upgrade your door security without professional help.
