Smart Fingerprint Door Lock Cylinder – Adjustable & Secure
Upgrade your door security with the LEI-U Smart Fingerprint Lock Cylinder, designed for flexibility, durability, and intelligent control. Perfectly compatible with wooden and metal doors, this lock brings advanced biometric technology right to your fingertips.
Smart Bluetooth Lock Cylinder – Easy Upgrade for Any Door
- Compatible with door thickness from 70–100mm (can also fit thinner doors, slight extension may occur)
- Works with both handle locks and panel locks
- Supports 4 unlocking methods: Fingerprint, Card, Password, and Mechanical Key
- Connect with gateway for remote WiFi control
- Adjustable design fits both standard and offset (eccentric) lock structures
- Easy installation – simply replace your existing lock cylinder, no complex setup required
- Powered by 4×AAA batteries, with battery status visible in the app
- Controlled via TTLock App
✅ Adjustable Design for Various Door Sizes
• When the center point is in X Position,
➤ A side: 35mm
➤ B side adjustable: 40–65mm
• When the center point is in Y Position,
➤ A side: 50mm
➤ B side adjustable: 25–50mm
IP64
This adjustable structure ensures perfect fitting for door thicknesses between 35–70mm — ideal for most home and office doors.
installation video link:https://fb.watch/GtN2omK_Sm/
⚙️ Product Specifications
• Main Material: High-density aluminum alloy
• Color Options: Black / Silver
• APP Compatibility: Tuya Smart App / TT lock App
• Power Supply: 4×AAA batteries (adaptive power system)
• Emergency Power: USB interface
• Emergency Keys: 2 keys included
• Fingerprint Sensor: Semiconductor type for fast recognition
• Suitable Door Types: Wooden doors, metal doors, etc.
🔑 Multiple Unlocking Methods
Unlock your door in the way that suits you best:
• Fingerprint
• Password
• Mobile APP
• Mechanical Key
⚡ Smart Features & Benefits
• Easy installation – no complex wiring required.
• Intelligent Tuya APP / TT lock control: manage access remotely.
• Stable semiconductor fingerprint sensor for quick and secure unlocking.
• Adjustable cylinder design – fits most European standard doors.
Enhance your home security with style and intelligence.
The LEI-U Smart Fingerprint Lock Cylinder combines modern design with cutting-edge technology, giving you both convenience and peace of mind.
Smart Fingerprint Door Lock Cylinder – Adjustable & Secure
Upgrade your door security with the LEI-U Smart Fingerprint Lock Cylinder, designed for flexibility, durability, and intelligent control. Perfectly compatible with wooden and metal doors, this lock brings advanced biometric technology right to your fingertips.
Smart Bluetooth Lock Cylinder – Easy Upgrade for Any Door
- Compatible with door thickness from 70–100mm (can also fit thinner doors, slight extension may occur)
- Works with both handle locks and panel locks
- Supports 4 unlocking methods: Fingerprint, Card, Password, and Mechanical Key
- Connect with gateway for remote WiFi control
- Adjustable design fits both standard and offset (eccentric) lock structures
- Easy installation – simply replace your existing lock cylinder, no complex setup required
- Powered by 4×AAA batteries, with battery status visible in the app
- Controlled via TTLock App
✅ Adjustable Design for Various Door Sizes
• When the center point is in X Position,
➤ A side: 35mm
➤ B side adjustable: 40–65mm
• When the center point is in Y Position,
➤ A side: 50mm
➤ B side adjustable: 25–50mm
IP64
This adjustable structure ensures perfect fitting for door thicknesses between 35–70mm — ideal for most home and office doors.
installation video link:https://fb.watch/GtN2omK_Sm/
⚙️ Product Specifications
• Main Material: High-density aluminum alloy
• Color Options: Black / Silver
• APP Compatibility: Tuya Smart App / TT lock App
• Power Supply: 4×AAA batteries (adaptive power system)
• Emergency Power: USB interface
• Emergency Keys: 2 keys included
• Fingerprint Sensor: Semiconductor type for fast recognition
• Suitable Door Types: Wooden doors, metal doors, etc.
🔑 Multiple Unlocking Methods
Unlock your door in the way that suits you best:
• Fingerprint
• Password
• Mobile APP
• Mechanical Key
⚡ Smart Features & Benefits
• Easy installation – no complex wiring required.
• Intelligent Tuya APP / TT lock control: manage access remotely.
• Stable semiconductor fingerprint sensor for quick and secure unlocking.
• Adjustable cylinder design – fits most European standard doors.
Enhance your home security with style and intelligence.
The LEI-U Smart Fingerprint Lock Cylinder combines modern design with cutting-edge technology, giving you both convenience and peace of mind.
INTELLIGENT SECURITY CRAFTED WITH PREMIUM ALUMINUM ALLOY—TRANSFORM YOUR ENTRYWAY INTO A SLEEK, KEYLESS SANCTUARY.
EMERGENCY ACCESS & SECURITY
NEVER LOCKED OUT
Peace of mind in any situation. Equipped with an external USB emergency power port for instant backup charging, plus a hidden mechanical key override, you are guaranteed safe and reliable entry even if the batteries run completely flat.
MADE FOR MODERN SPACES
CRAFTED WITH PRECISION
Built to blend high-end security with sleek aesthetics. Crafted from a premium aluminum alloy material with a fingerprint-resistant matte finish, this durable smart handle seamlessly fits doors with an applicable thickness of 35-50mm, delivering long-lasting residential protection.
NEXT-GEN SMART SECURITY
ALL-IN-ONE APP CONTROL
Enjoy seamless integration with the Tuya Smart ecosystem. Gain full remote management right from your smartphone—track entry logs, issue temporary passcodes for guests, and coordinate smart home automations from anywhere, anytime.
FAQ
Dispatched Locally – Fast Delivery & Free Shipping Across South Africa!
★ Keyless Freedom: 5-in-1 Secure Access (Biometric Fingerprint & Tuya App)
Built for Strength: Premium Black Aluminum Alloy Shell & Up to 1-Year Battery Life
ELEVATE YOUR HOME SECURITY
Say goodbye to fumbling for keys and outdated door locks. Crafted with a premium aluminum alloy shell, our smart door handle offers a sleek, modern security solution for your everyday living. Fully integrated with smart APP control and advanced biometric fingerprint recognition, it allows you to manage access, check real-time logs, and secure your space effortlessly—safely and stylishly.
"LUSTER strikes the perfect balance between statement and everyday wear, blending heritage craftsmanship with modern design. These are treasures you'll wear every day, not just save for special occasions"Nisha Perera, Berlin
