Master Lock 5440EC
Score: 85/100
Rudy RUN Lock Box
Score: 78/100Rankings
The Master Lock 5440EC is a portable, smart key lock box designed for realtors and property managers who need flexible, temporary access control. Its key strength lies in its Bluetooth connectivity and app integration, allowing for tamper and low-battery alerts. While it lacks the permanent stability of wall-mount options, it is ideal for short-term rentals and property showings.
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.
| Attribute | | |
|---|---|---|
5 keysbest | 5 keysbest | |
12.2 cmbest | 11.94 cm | |
8.3 cm | 9.4 cmbest | |
2.9 cm | 4.32 cmbest | |
| ↓ lower better | 0.5 kg | 0.45 kgbest |
46 mmbest | — | |
1 yearsbest | — |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Durability & Environment(1) | ||
Weather Resistance Rating | Weather resistant to -40° | Waterproof, heat-resistant, dust cover |
Installation & Mounting(1) | ||
Mounting Type | Portable over-the-knob | Wall-mount |
Design & Fit(3) | ||
External Height (cm) | 12.2 cm | 11.94 cm |
External Width (cm) | 8.3 cm | 9.4 cm |
External Depth (cm) | 2.9 cm | 4.32 cm |
Build & Design(2) | ||
Body Material | Molded body with vinyl-coated shackle | Aluminum alloy, stainless steel, zinc alloy |
Product Weight (kg) | 0.5 kg | 0.45 kg |
Support & Warranty(1) | ||
Warranty Length (years) | 1 years | years |
Products in the top-left offer the best value (high score, low price).
Master Lock's official descriptions characterize the 5400D as a reliable key safe for home or rental use, emphasizing its secure, keyless access and anti-jamming design.
Official notes imply user-friendly operation and convenience for rentals and real estate, suggesting positive reception for its intended temporary access use cases.
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.
