Smart Key Box with Fingerprint, Password, and Card Swiping for Keyless Entry – K3BF and KB5F Models

Managing keys for rental properties, offices, or shared homes can be a hassle, especially when you need to grant access to multiple people without duplicating keys. This smart key box offers a secure and practical solution, allowing you to store keys inside a lockable box that can be opened using a variety of methods: fingerprint, password, card, or the TTLock app via Bluetooth. Supporting up to 100 fingerprints, 150 cards, 1000 faces, and 100 passwords (on the K5F model only), it suits families, small teams, or property managers who want a central access point. The box works with key cards operating at 13.56 MHz or 125 kHz, ensuring compatibility with common hotel room cards and access fobs. With an ambient temperature range of -25 to 55°C, it is built to withstand indoor and covered outdoor use. The product is available in two model series—K3BF and KB5F—and two style options: TTLock and TTLock plus gateway, providing flexibility for different access control needs.

Features and Construction

This smart key box is designed with practical access control in mind, combining multiple identification methods in a single, robust enclosure. The construction uses a zinc alloy body and a tempered glass touch panel, giving it a solid feel while protecting the electronics. The following details outline its key capabilities.

Access Methods

The box supports fingerprint, password, card, and app-based entry, allowing users to choose the most convenient method at any time. It operates via Bluetooth communication, enabling wireless configuration through the TTLock app. The induction methods cover both 13.56 MHz and 125 kHz frequencies, so it works with most modern key cards and fobs. This flexibility reduces the need for separate lock boxes or key-sharing arrangements.

Storage Capacity

The device can store up to 100 fingerprints, 150 cards, 1000 faces, and 100 passwords (K5F model only). This capacity is sufficient for a medium-sized family or a small team of contractors, letting each user keep their own verified access without sharing codes. The K3BF models offer fingerprints and cards, while the KB5F additionally supports face recognition, making it suitable for higher-security or higher-traffic settings.

Mounting and Power

The key box is designed for wall mounting using included hardware and requires a 12W power supply. It operates within an ambient temperature range of -25 to 55°C, ensuring reliable performance in most UK weather conditions, from frosty winters to warm summers. The power supply keeps the unit active continuously, and the low-power indicator alerts you when batteries (if used) need replacing.

Uses and Placement

This smart key box is designed for practical everyday use, providing a secure storage point for keys that need to be accessed by multiple people without direct handover. Its weather-resistant build and multiple access methods make it versatile for different scenarios.

Residential and Rental Use

Landlords and property managers can use this key box to grant temporary or permanent access to tenants, cleaners, or maintenance workers. Store a spare set of keys inside the box and assign each user a unique code, fingerprint, or card. The app logs access events, so you always know who entered and when, improving security and accountability.

Office and Small Business Use

In a small office or co-working space, the key box can hold keys for meeting rooms, storage cabinets, or IT equipment. Team members can access keys using their own fingerprints or cards, eliminating the need for a receptionist to manage key sign-outs. The multiple-access methods also reduce the risk of lost keys compromising security, as lost cards can be easily removed from the system.

Outdoor or Common Area Placement

The robust zinc alloy body and wide temperature range make the box suitable for covered outdoor areas such as porches, garages, or building entrances. It can also be installed in communal hallways, utility rooms, or sheds. Always ensure the unit is mounted in a location that is sheltered from direct rain and direct sunlight for best longevity.

Benefits and Buying Value

Choosing this smart key box offers several practical advantages, especially for those who need to manage multiple users without sacrificing security or convenience. The following points highlight the key reasons to consider it.

Reduced Key Duplication and Lost Key Risk

By allowing access via fingerprint, password, or card, the box removes the need to physically hand over keys. If someone loses their key card or forgets a code, you can simply add a new one or remove their access remotely through the app. This reduces the cost and hassle of cutting new keys or changing locks.

Easy Setup and Day-to-Day Use

The Bluetooth connection makes initial setup straightforward through the TTLock app. You can add or remove users, change codes, and check access logs from your smartphone. Once installed, the box requires minimal maintenance, and the low-power indicator helps you stay ahead of battery changes. The capacity for up to 1000 faces on the KB5F model means you can onboard a large team without the need for physical keys.

Flexible Access Control for Any Situation

Whether you need to let a cleaner in while you are away, grant a contractor access during a project, or manage a team of employees, the box adapts to your needs. Each access method—fingerprint, password, card, or app—works independently, so if one fails, another can still open the box. This multi-layered approach provides resilience and peace of mind.