TTLock Smart Fingerprint Door Lock Keyless Entry B04
TTLock Smart Fingerprint Door Lock Keyless Entry B04
LAOLAU B04 TTLock Smart Fingerprint Door Lock – 6-in-1 Keyless Entry
Upgrade your home security with the LAOLAU B04 TTLock Smart Door Lock — a versatile, feature-packed keyless entry system offering six convenient ways to unlock. Whether you're a homeowner, landlord, or Airbnb host, the B04 delivers effortless access control from your smartphone, fingertip, or keypad. Made in Mainland China.
6 Ways to Unlock – Total Convenience for Every Situation
- Fingerprint – Advanced biometric sensor grants access in under 0.5 seconds
- TTLock App (Bluetooth) – Unlock instantly with your smartphone when within Bluetooth range
- Passcode – Set permanent, timed, one-time, or recurring codes for family, guests, or staff
- IC Card (RFID) – Contactless tap-and-go access with included RFID cards
- Mechanical Key – Physical backup keys included for emergencies
- Remote Access – Unlock from anywhere via the optional Gateway (sold separately)
Smart Guest Access – Perfect for Rentals & Airbnb
Manage access for guests, cleaners, or family members without ever being home. The TTLock app (free, iOS & Android) lets you generate and share time-limited eKeys or temporary passcodes remotely. Codes expire automatically — no physical key exchange, no risk of unauthorized copies.
Full Access History – Always Know Who's Coming and Going
The TTLock app stores a complete unlock history showing who entered and when — via fingerprint, card, passcode, or app. Pair with the optional Gateway for real-time entry notifications wherever you are.
Anti-Peep Camouflage Passcode
Protect your code from prying eyes with the camouflage unlocking feature. Simply add random digits around your true password when entering — onlookers only see a string of numbers, never your real code.
Reversible Handle – Fits Any Door
The fully reversible and adjustable handle fits both left- and right-handed doors with no complicated adjustments. Compatible with steel, wooden, stainless steel, and brass doors with a thickness of 35–55mm.
Emergency Type-C Power Backup
Never get locked out by a dead battery. The integrated Type-C emergency power interface lets you connect any standard power bank to instantly power and unlock the door — even if the batteries are fully drained.
Key Specifications
| Brand | LAOLAU |
| Model | B04 |
| App | TTLock (iOS & Android, free) |
| Connectivity | Bluetooth |
| Material | Aluminium Alloy |
| Power Supply | 4 × AA Alkaline Batteries (not included) |
| Emergency Power | Type-C Interface (external power bank) |
| Door Thickness | 35–55mm |
| Compatible Doors | Steel, Wooden, Stainless Steel, Brass |
| Handle Direction | Reversible (Left & Right) |
| Protection Level | IP66 (dust-tight & water-resistant) |
| Certifications | CE, RoHS, UL, FCC |
| Gateway | Sold separately (required for remote access) |
| Country of Origin | Made in Mainland China |
What's in the Box?
- 1 × LAOLAU B04 Smart Door Lock
- Mechanical backup keys
- IC/RFID cards
- Installation hardware & instructions
- Batteries and Gateway NOT included
For general guidance on home security best practices, visit the U.S. Consumer Product Safety Commission (CPSC).
Frequently Asked Questions
Q: Does the TTLock Smart Fingerprint Door Lock B04 work without Wi-Fi?
A: Yes! The lock connects to your smartphone via Bluetooth, so no Wi-Fi is needed for local access using the TTLock app, fingerprint, passcode, IC card, or mechanical key. A separately sold Gateway is only required if you want remote access and real-time notifications from outside Bluetooth range.
Q: What door types is the LAOLAU B04 compatible with?
A: The B04 is compatible with steel, wooden, stainless steel, and brass doors with a thickness between 35mm and 55mm. The handle is fully reversible and adjustable for both left- and right-handed door configurations.
Q: What happens if the batteries run out on the B04 smart lock?
A: The lock features a built-in Type-C emergency power interface. Simply connect any standard external power bank to the port, and you can power up and unlock the door immediately — ensuring you're never stranded by a dead battery.
Q: Can I create temporary or guest passcodes for the TTLock B04?
A: Absolutely. Through the free TTLock app (iOS & Android), you can create permanent, timed, one-time, or recurring passcodes and eKeys. These can be set to automatically expire after a chosen date or time, making them ideal for short-term rentals, housekeepers, and guests.
Q: Is the LAOLAU B04 door lock weatherproof?
A: Yes. The B04 carries an IP66 protection rating, meaning it is fully dust-tight and protected against powerful water jets — suitable for exterior doors exposed to the elements.