
Master Lock 5406D
Score: 75/100
Rudy RUN Lock Box
Score: 78/100Rankings

The Rudy RUN Key Lock Box is a wall-mountable outdoor combination lockbox designed for securely storing up to five keys. It features a resettable 4-digit combination and waterproof construction, making it a robust and affordable alternative to portable models. It is best suited for homeowners and realtors who prefer a fixed, weatherproof installation over portable options.

The Master Lock 5406D is a portable, over-the-knob key lock box featuring a durable metal body and a set-your-own 4-digit combination. It is designed for users who need a robust, cost-effective solution for temporary key storage without the need for smart features. It is best suited for real estate agents and homeowners who prioritize durability and portability over advanced connectivity.
| Attribute | ![]() | ![]() |
|---|---|---|
5 keysbest | 5 keysbest | |
13.34 cmbest | 11.94 cm | |
6.99 cm | 9.4 cmbest | |
3.81 cm | 4.32 cmbest | |
| ↓ lower better | 0.32 kgbest | 0.45 kg |
35.71 mmbest | — |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Durability & Environment(1) | ||
Weather Resistance Rating | Yes, with weather cover | Waterproof, heat-resistant, dust cover |
Installation & Mounting(1) | ||
Mounting Type | Portable, Over-the-knob | Wall-mount |
Design & Fit(3) | ||
External Height (cm) | 13.34 cm | 11.94 cm |
External Width (cm) | 6.99 cm | 9.4 cm |
External Depth (cm) | 3.81 cm | 4.32 cm |
Build & Design(2) | ||
Body Material | Durable metal body with vinyl-coated shackle | Aluminum alloy, stainless steel, zinc alloy |
Product Weight (kg) | 0.32 kg | 0.45 kg |
Support & Warranty(1) | ||
Warranty Length (years) | Lifetime years | years |
Security & Access(1) | ||
Lock Type | 4-digit numeric | 4-digit combination |


Products in the top-left offer the best value (high score, low price).

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.
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.

Professional reviewers, including editors from Bob Vila, recommend the Rudy Run as an affordable wall-mount alternative to popular portables like the Master Lock 5400D. They praise its large capacity, 10,000 combinations, dust cover for longevity, and heat resistance.
Limited direct consumer feedback is available, but YouTube comments reference the product positively alongside similar products like Master Lock. There are no specific praise points or complaints isolated for the Rudy Run in the provided sources.

