10 Best Key Lock Boxes 2025 in the United States

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 Puroma Key Lock Box is a versatile and secure option for storing your keys. Made from high-quality aluminum alloy and steel, it is designed to resist rust, cutting, and prying, making it highly durable and secure. It features two installation methods: a removable shackle for hanging on a doorknob and a wall-mount option using screws and expansion plugs. This flexibility makes it suitable for various settings, including homes, offices, and rental properties.

With a pre-set combination code of 0-0-0-0, users can easily reset to a custom 4-digit code, offering 10,000 possible combinations for enhanced security. The large capacity allows for storing multiple keys, making it convenient for emergency access or sharing keys with others, such as Airbnb guests or pet sitters. Additionally, its weatherproof design ensures it can withstand outdoor conditions.

However, at 1.54 inches deep, some users may find it slightly bulky for certain locations, and while the combination lock is handy, it may not suit those preferring a key-based system. Ideal for those needing a reliable and adaptable key storage solution.

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.