4 digit smart lock key box|TSA-Approved Luggage Locks for Secure Travel | Buy Now

A 4-digit smart lock key box is an innovative security device that integrates a 4-digit access code (for quick, offline access) with smart technology (for remote management and monitoring)—offering the best of both convenience and security for key storage. Developed by Shanghai Kuntu Industrial Co., Ltd., a BSCI-certified manufacturer with over 20 years of experience in safety product production (including key safes, lock boxes, and smart locks), this product is designed to address the needs of users who require both immediate, code-based access and the flexibility of smart control. Kuntu’s 4-digit smart lock key box leverages the company’s strong R&D capabilities and quality control processes, ensuring that the 4-digit code mechanism is secure and intuitive, while the smart features are stable and user-friendly. The application scenarios for Kuntu’s 4-digit smart lock key box are tailored to situations where both convenience and security are paramount. In the short-term rental (STR) industry, for example, a leading STR platform in North America partnered with Kuntu to equip 1,200 of its rental properties with these lock boxes. Hosts can use the companion mobile app to generate a unique 4-digit code for each guest, which is valid for the duration of their stay. Guests can unlock the box using the 4-digit code (no need for a smartphone, ideal for travelers with limited data or battery) , while hosts receive real-time notifications via the app when the box is opened or closed. This setup reduces the risk of key loss, eliminates the need for in-person key handovers, and provides hosts with greater control over access. In the commercial sector, a chain of coffee shops in China uses Kuntu’s 4-digit smart lock key boxes to store keys for storefronts and storage rooms. Store managers can set a master 4-digit code (for themselves) and temporary codes (for part-time staff), which expire at the end of the staff’s shift. The app also allows managers to view access logs, ensuring accountability and preventing unauthorized access outside of business hours. For residential use, a family in Europe uses this lock box to store a spare house key for elderly grandparents. The family sets a simple 4-digit code (easy for grandparents to remember) and can remotely disable the code via the app if the key is lost or if access is no longer needed. Kuntu’s 4-digit smart lock key box is built to meet the highest standards of durability and security, reflecting the company’s decades of experience in the safety industry. The outer shell is made of reinforced 304 stainless steel, which is resistant to corrosion, rust, and impact—making it suitable for both indoor and outdoor use. The 4-digit code mechanism is a mechanical-digital hybrid: it features physical push buttons (for tactile, reliable input) and is engineered to prevent code tampering (e.g., it does not show wear patterns on frequently pressed buttons). The smart module supports Bluetooth 5.0 (for stable, low-power connectivity to smartphones) and offers a range of features via the app: remote code generation and deletion, access log tracking (up to 1,000 entries), low-battery alerts (battery life of up to 18 months under normal use), and firmware updates (to add new features). The internal compartment is designed to hold 5-10 keys (depending on size) and includes a soft, non-scratch lining to protect keys from damage. As a BSCI-certified manufacturer, Kuntu ensures that the production of its 4-digit smart lock key boxes adheres to ethical labor practices and environmental regulations—appealing to clients who prioritize sustainability. The product also complies with international certifications, including CE (for European markets) and FCC (for North American markets), ensuring compatibility with local standards. For clients with specific needs (e.g., a lock box with extended Bluetooth range, a weatherproof design for extreme temperatures, or custom branding on the outer shell), Kuntu’s professional foreign trade team—equipped with rich international business knowledge—can provide personalized solutions. Pricing for this product varies based on specifications, order quantity, and additional features; to receive a detailed quote and product demo, please contact our team. We are dedicated to delivering reliable products, great service, and fostering mutual success with our partners.