Specification

Details

audio
beeps & voice prompts
brand
Generic OEM (Tuya-Compatible, Hanex/B3)
model
B3
power
4× AA batteries + USB-C emergency power
storage
event logs via app
warranty
1 year
weight_g
approx. 1100 g
lock_type
knob smart lock
battery_life
approx. 6–12 months
connectivity
2.4 GHz Wi‑Fi (Tuya Smart/Smart Life)
construction
metal alloy round knob
pin_capacity
up to 200 PIN codes
dimensions_mm
standard round knob size (~110 mm diameter)
authentication
fingerprint, PIN/password, RFID/IC card, mechanical key, mobile app (Wi‑Fi)
operating_temp
–10 °C to 50 °C
smart_features
auto-lock, unlock logs, low battery alert, tamper detection, dual verification
emergency_power
USB-C port
compatible_doors
wood, steel, aluminum
door_thickness_mm
35–55
power_consumption
≤5 W (active)
rfid_card_capacity
up to 200 cards
fingerprint_capacity
up to 300 fingerprints

Description

The B3 WiFi Smart Bedroom Round Lock is designed for secure and convenient access to your bedroom, office, or other interior rooms. Its compact round knob form incorporates advanced smart features and multiple unlocking methods, making it perfect for rentals, home interiors, or private spaces.

🔒 Key Highlights

  • Five Unlock Options: Biometric fingerprint, numeric PIN, RFID card, mechanical key, and Tuya mobile app.

  • Remote App Control: Lock/unlock, generate codes, view access logs, and manage users through Tuya Smart app.

  • Compact & Stylish: Round knob design seamlessly complements interior doors.

  • Battery Convenience: Uses 4 AA replaceable batteries; low-battery alerts and USB-C emergency power.

  • Auto-Lock & Tamper Alerts: Secure locking every time; alerts available for forced entry attempts.

Perfect for bedrooms, student rooms, nursery doors, or any interior space where private access is needed without requiring full-door mortise hardware.

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