Smart Lock Cylinder Intelligent 128-Bit Encryption w/ 5 Key

17 reviews
Regular price $260.95 Sale price $130.99
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Smart Lock Cylinder Intelligent 128-Bit Encryption w/ 5 Key

Includes only the core of the lock, which is installed instead of a conventional cylinder. we released just four versions of the novelty for different thickness of the door. In the kit, there are five keys of different colors, in the mobile application for each one you can adjust the access time. The smartphone will also show who and when opened/closed the door. To enter the house, you need to turn the key in the lock.
If the lock detects a hacking attempt, the mechanism is blocked, the built-in alarm is triggered, and a notification is sent to the user's smartphone. The built-in chip uses 128-bit encryption to protect against the interception of data. You can lock the lost key in the settings. Support for the Zigbee protocol allows you to integrate the Lock into the smart home system.
Three batteries are enough for a year's work. Another useful feature - if you forget to remove the key, after 30 seconds the lock will emit a signal and send an alert to the smartphone.

Materials: 304 Stainless Steel, Brass, Nickel-silver, ABS
Working Voltage: DC4.5V
Battery Model: LR1 AM5 SIZE N 1.5V
Wireless connection: Zigbee
Working Temperature: -25℃ ~ +55℃
Working Humidity: 5% ~ 93%RH
Key Quantity: 5
APP: Mi Home, Support IOS & Android
Main Material: Copper, Stainless Steel
Package Size: 22.5x15.5x5cm/8.85" x 6.10" x 1.96" inch

How To Choose The Right Model?

Size Model L1 Size (Outdoor) L2 Size(Indoor)
#1 ZYJ 80-40/40 35mm~40mm/1.37" - 1.57" inch 35mm~39mm/1.37" - 1.53" inch
#2 ZYJ 75-40/35 35mm~40mm/1.37" - 1.57" inch 30mm~34mm/1.18" - 1.33" inch
#3 ZYJ 90-45/45 40mm~45mm/1.57" - 1.77" inch 40mm~44mm/ 1.57" - 1.73" inch
#4 ZYJ 100-50/50 45mm~50mm/1.77" - 1.96" inch 45mm~49mm/1.77" - 1.92" inch
#5 ZYJ 100-60/40 55mm~60mm/2.16" - 2.36" inch 35mm~39mm/1.37" - 1.53" inch
#6 ZYJ 100-40/60 35mm~40mm/1.37" - 1.57" inch 55mm~59mm/2.16" - 2.32" inch
#7 ZYJ 120-75/45 70mm~75mm/2.75" - 2.95" inch 40mm~44mm/1.57"- 1.73" inch

● In the case of a non-approved key, the lock locks, send an audible signal and alerts directly to the owner’s mobile
● With a 128bit encoding algorithm, it’s virtually impossible for someone to copy her keys
● If a key is lost you can change the encoding and just get a new key – not a new lock
● If you leave the key on the lock for more than 30 seconds, it will inform you on the mobile phone for even greater security
● The Smart Lock consumes minimal energy and with 3 batteries it can operate safely for over 1 year

Package Includes:
1 x Smart Lock Cylinder Intelligent 128-Bit Encryption w/ 5 Key
5 x Chip-encrypted Keys
1 x User Manual
(Contains Anti-drill Cover, Screws)
User Manual Includes The Following Contents:
1. Product Introduction
2. Download APP, Link To Mi Gateway, Adding Cylinder In APP
3. Daily Operate Manual, Local Operation, Tone Manual

*Please allow 10-21 business days for the item to arrive


We ship our products from several different warehouses outside of the US. If you order several different products, they might arrive separately and on a different day.
You will get the tracking number directly to your email about 1-3 business days after purchase.

Please allow 10-21 business days for the item to arrive, depends on your location.

Your happiness is our top priority. If for any reason you need help with your purchase, email us with your order number and we will do our best to assist you.

Index Cove commit to making our customers 100% satisfied. 

Not 100% happy with you purchase? Simply send us an email to and our dedicated team will solve any problem!

Product didn't arrive / damaged / doesn't fit? you are covered by our FREE "item reshipment" policy. Check our FAQ for more info.

Customer Reviews
4.9 Based on 17 Reviews
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A***i verified customer review of Smart Lock Cylinder Intelligent 128-Bit Encryption w/ 5 Key
I recommend this product

Great shop, good product, just

Great shop, good product, just buy

I recommend this product

Excellent item, very fast shipping

Excellent item, very fast packing works fine

I recommend this product

The instructions did not come

The instructions did not come in spanish, but it was not very difficult to set it up.

I recommend this product

The product arrived shortly. The product

The product received shortly. The product is of high quality I recommend it.

I recommend this product

Works very well. Good quality

Works very well. Good quality apparent. Seems solid enough