HEIXSMT Fingerprint Door Knob – 4-in-1 Biometric Keyless Entry for Home & Office

Key features at a glance

The HEIXSMT Fingerprint Door Knob combines four access methods into one reliable unit, designed to reduce clutter and simplify everyday routines. Use fingerprint, enter a code, tap one of the four included key fobs, or unlock with the mechanical key as a backup when needed. It's well suited for bedrooms, apartments, offices, and hotel rooms where flexible, keyless access matters.

Fast, accurate fingerprint access

Equipped with a 508 DPI fingerprint sensor and full 360 degree reading, the system reads authorized prints quickly and with high accuracy. It supports up to 100 fingerprints and typically unlocks in about 0.3 seconds, helping you avoid fumbling at the door.

• 4 in 1 access: fingerprint, code, 4 RFID key fobs, mechanical key
• Store up to 100 fingerprints for family or colleagues
• Unlock speed commonly under 0.3 seconds

Easy installation and broad compatibility

Designed for US standard doors, it fits backsets of 60 mm or 70 mm and door thicknesses from 30 mm to 55 mm. A small screwdriver makes the installation straightforward, and it supports both left and right handed doors for indoor or outdoor use.

• Quick DIY setup on most standard doors
• Left or right handed doors compatibility

Power options and reliability

Powered by four AAA batteries, the lock can operate for eight to ten months depending on usage. A low battery indicator helps you plan replacements, and a USB port provides a backup power path if needed.

Support and practical benefits

Beyond hardware, HEIXSMT offers responsive support within 24 hours and a full 365 days after-sales service. The system is designed to support everyday life with flexible, keyless access that you can rely on when you need it.