Virtual passwords, password verification support adding garbled codes before and after the password verification, you only need to include the correct password in the middle to open the lock, so that other people cannot know the password.
eBay
Modern Wall Mounted Mailbox Metal Iron Plate Rainproof Hanging Password Lock Postbox for After Hours Deposits Key & Letter Drop
Aliexpress UK
THOUGHTFUL DESIGN: With five unlocking modes (fingerprint, password, IC card, key, and app), this smart door lock caters to all your security needs. No worry of forgotten keys or passwords and enjoy a smarter, more convenient experience.
eBay
1pc Box Toggle Latch Lock+Key Antique Bronze Zinc Alloy Clasp Bag Buckle Vintage Wooden Jewelry Wine Gift Case Decor 58mm*34mm
Aliexpress UK
DUAL VERIFICATION MODE: Set 2 users for dual verification with fingerprints, passwords, and cards for security in special occasions, giving you dependable usage. Capacity: 300 sets of fingerprint + password + IC card.
eBay
4/6 Wire Way Gasoline Generator Ignition Start Key Lock Combination Switch for 2-3KW 168F and 5-8kw 188F Generator
Aliexpress UK
Weatherproof: Built with premium iron alloy material, our smart lock is not only sturdy but also resistant to harsh weather conditions. Its compact size allows for easy installation on any door. Waterproof: IP66.
eBay
2pcs/4pcs Easy Install Knobs Hardware Filler Cover Door Reinforcement Plate Stainless Steel Lock Repair Fixing Deadbolt Modern
Aliexpress UK
Smart Door Handle Fingerprint Lock with 4-in-1 Keyless Entry (Fingerprint/App/IC Card/Key). Biometric Door with Automatic Lock. Easy to Install. Suitable for Home, Bedroom, or Office. .
eBay
Antique Furniture Fittings Brass/Antique Copper Lock Bolt Locking Closure Pin Cabinet Door Box Latch Locking Pin for Furniture
Aliexpress UK
Tuya App Bluetooth Smart Fingerprint Door Lock with Password and NFC. Unlock your doors with the cutting-edge Tuya App Bluetooth Smart Fingerprint Door Lock. With a fingerprint recognition rate of up to 99.8%, you can open your door in less than 1 second, ensuring quick and convenient access.
eBay
Modern Grey and Black Door Handle Lever with Lock for Kitchen, Bedroom, Bathroom, Office, Hotel - Fast Shipping
Aliexpress UK
Smart Door Handle Fingerprint Lock with 4-in-1 Keyless Entry (Fingerprint/App/IC Card/Key). Biometric Door with Automatic Lock. Easy to Install. Suitable for Home, Bedroom, or Office. .
eBay
10mm Shank 16.5-30MM Screw Thread Wooden Door Lock Slotting Cutter CNC Bottom Cleaning Router Bit Woodworking Milling Tools
Aliexpress UK
The auto-lock function would help you if you forgot to lock your door. Opening mode: password + key + card + APP. 【Simple operation】: only need to replace the lock cylinder, no need to disassemble the lock body, no need to drill holes for installation, convenient and quick.
eBay
Universal Casement Window Handle Door Handles Wheel Lock with Buckle Aluminum Alloy Turning Handles Furniture Supplies Hardware
Aliexpress UK