
Master Lock
The Master Lock 5400D is a portable, over-the-knob key lock box featuring a set-your-own 4-digit combination for secure, temporary key storage. It is designed with a large internal cavity to hold up to five keys without jamming and includes a weather cover to protect the dials from freezing or grime. The unit is constructed from durable metal with a vinyl-coated shackle to prevent surface damage during installation.
Pros
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Cons
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Expert Opinion
Sources lack dedicated expert reviews from major testing organizations. Manufacturer descriptions emphasize reliability for real estate and rentals, highlighting the anti-jamming cavity, weather protection, and portability as strengths for home and rental use. Home Depot notes it withstands hammering and sawing, positioning it as a robust option for key storage.
What Users Say
Limited consumer feedback is available, with one noted 5-star review praising key capacity and ease of use. Common praise is inferred to center on the convenience of storing house keys and the portability of the device. No recurring complaints are detailed in the available sources.
Common Complaints
No recurring complaints are detailed in the available sources.
How It Compares
vs. Master Lock 5422D
Advantages
Disadvantages
Choose the 5400D for basic rentals and cost savings, or the 5422D for gloved or low-light access.
vs. Master Lock 5480D
Advantages
Disadvantages
Choose the 5400D for basic single-key needs, or the 5480D for high-use multi-item storage.
vs. Master Lock 5440EC
Advantages
Disadvantages
Choose the 5400D for traditional dial access, or the 5440EC for tech-savvy tracking and sharing.
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