10 Best Key Lock Boxes 2026 in the United States

The Master Lock Digital Lock Box is designed to securely store keys and access cards, making it particularly suitable for vacation rentals like Airbnb and VRBO, unmanned locations, and real estate use. One of its notable strengths is the ability to share access via Bluetooth and keypad codes, allowing flexibility for both temporary and permanent access. This is especially useful for managing multiple guests or service personnel without needing physical keys. Additionally, it offers a large internal capacity, ensuring you can store multiple keys at once, and it is weather resistant down to -40°, making it durable for outdoor use.

On the downside, some users may find the reliance on a battery for operation a drawback. The lock requires a CR123A battery, which needs to be replaced periodically, although it does come with one included. The lock box is also slightly larger than some might expect, measuring 3-1/4 inches wide, which could be a concern for those looking for a more compact solution.

If you seek a reliable and user-friendly solution for key management, especially in rental or real estate scenarios, the Master Lock Digital Lock Box is a compelling option. Just be prepared for the need for battery replacements and some potential learning curve with the app functionalities.

The Master Lock Key Lock Box (model 5400EC) is a robust and versatile option for securely storing up to five standard house keys. Made of durable metal, it features a four-digit combination lock that you can reset with thousands of possible codes for personalized security. Ideal for both indoor and outdoor use, the lock box is coated with vinyl to prevent scratches and includes a shutter door to protect the combination dials from weather elements.

The shackle is designed to fit most door knob styles, making it highly adaptable. Measuring 6.25 x 3.25 x 1.5 inches, it is relatively portable and can be conveniently mounted on a door or other surfaces. It should be noted that while the box is weather-resistant, it may not be fully waterproof, so placement in very wet conditions could be a concern.

The capacity, while adequate for most, is limited to five standard keys, which might not be enough for some users with larger key sets. Despite these minor drawbacks, the combination of durability, ease of use, and security makes it a solid choice for anyone in need of a reliable key storage solution, especially for outdoor use or real estate purposes.

The Master Lock Set Your Own Combination Wall Mount Lock Box is designed to securely store up to five keys. Made from durable metal, this lock box is built to last. Its combination locking mechanism allows you to set and reset your own four-digit code, providing thousands of personalized combination options which adds an extra layer of security.

The box is suitable for both indoor and outdoor use, thanks to its robust construction and a shutter door that protects the combination dials from the elements. With exterior dimensions of 4-3/4 inches high, 3-1/4 inches wide, and 1-1/2 inches deep, and interior dimensions providing a volume of 7.3 cubic inches, it offers ample space for multiple keys without being overly bulky. However, this might limit its capacity to store larger items.

The lock box is designed to be mounted to a wall or a fixed object, making it a great option for those looking for a permanent and secure key storage solution. A potential downside is that its portability is limited due to its fixed mounting design. Additionally, while the metal construction is durable, it may be prone to rust if exposed to harsh weather conditions over extended periods. This product is ideal for homeowners, property managers, or anyone needing a secure way to store keys outdoors.