Harfo Fingerprint Smart Door Lock for Front Door with Handle

Product Overview

The Harfo Fingerprint Smart Door Lock for Front Door with Handle is a modern, multi-access home security solution designed to enhance both convenience and protection. Built for standard front doors, back doors, and apartment entryways, this lock integrates biometric, digital, and mechanical access methods into one reliable system. Ideal for homeowners, renters, and property managers, it replaces traditional keys with faster, more secure unlocking options like fingerprints, passcodes, IC cards, and smartphone control. With features such as auto-lock scheduling, remote management via app, and voice assistant compatibility, the lock offers flexibility for daily use and short-term rentals alike. Engineered for durability and ease of installation, it supports a range of door thicknesses and is compatible with most wooden doors. Whether you’re upgrading your home’s security or managing multiple properties, this smart lock delivers dependable performance with minimal maintenance.

Key Features

• All-in-One Access Methods: Unlock using fingerprints, mobile app, passcodes, IC cards, physical keys, or E-key—providing six distinct ways to enter without relying solely on keys.
• Biometric Fingerprint Recognition: Scan your fingerprint instantly for quick, keyless entry. Supports up to 50 unique fingerprints, eliminating worries about lost or duplicated keys.
• Advanced App Management: Control and monitor your lock remotely through the dedicated app. Share temporary or recurring access codes with guests, set schedules, and review entry logs for enhanced oversight.
• Remote & Voice Control Compatibility: When paired with the Harfo Gateway (sold separately), you can lock or unlock your door from anywhere via the app. The system also works with Alexa and Google Assistant for hands-free voice commands and real-time notifications.
• Enhanced Security Protocols: Includes anti-peeping keypad design, privacy mode, silent mode, passage mode, auto-lock between 5–900 seconds, and emergency power port access for low-battery situations.
• High-Capacity Storage: Stores up to 250 user passcodes and supports 1,000 IC cards (including three included in the package), making it suitable for households or multi-tenant buildings.
• Universal Door Compatibility: Designed for standard wooden doors ranging from 35mm to 50mm thick (1.38 to 1.97 inches). Works with left-handed, right-handed, and standard door configurations.

Technical Specifications

• Access Methods: Fingerprint, App, Passcode, IC Card, Physical Key, E-key
• Fingerprint Capacity: Up to 50 fingerprints
• Passcode Capacity: Up to 250 user codes
• IC Card Capacity: Up to 1,000 cards (includes 3 cards)
• Auto-Lock Timer: Adjustable from 5 to 900 seconds
• Door Thickness Range: 35mm to 50mm (1.38–1.97 inches)
• Compatible Doors: Standard wooden doors (left/right handed)
• Battery Requirements: 4 × 1.5V AA dry batteries (not included)
• Voice Assistant Support: Alexa and Google Assistant (with Harfo Gateway)
• Emergency Power Port: Yes (for temporary battery connection)

Benefits & Use Cases

This smart deadbolt is particularly beneficial for individuals who frequently misplace keys or seek added convenience without compromising security. Homeowners appreciate the ability to grant temporary access to family members, delivery personnel, or service providers through time-limited or scheduled codes. Property managers and hosts renting out spaces—such as Airbnb units—benefit from remote monitoring and flexible guest access controls. The inclusion of physical keys ensures backup access during power outages or app malfunctions, while the anti-peeping keypad prevents shoulder-surfing attacks. Silent mode allows discreet entry, and passage mode enables one-touch locking after entry, reducing forgotten locks throughout the day. With support for voice control and real-time alerts, users maintain awareness of their home’s status even when away.

Important Notes

The Harfo Smart Door Lock requires four AA batteries (1.5V, dry cell type) to operate—these are not included in the package. Rechargeable batteries are not recommended due to lower voltage output (typically 1.2V), which may affect functionality and reliability. Installation is intended for doors within the specified thickness range and should align with standard wooden door designs. While the lock supports left-handed, right-handed, and standard door setups, proper alignment and mounting hardware compatibility must be confirmed prior to installation. The Harfo Gateway is required for full remote and voice control capabilities and must be purchased separately. Users have reported generally positive experiences with passcode input and IC card recognition, though perceptions of overall lock performance may vary based on individual expectations and usage scenarios.