KeyGuard SL-500 Black
Score: 75/100
Master Lock 5423EC
Score: 75/100Rankings
The KeyGuard SL-500 is a portable punch-button lock box with a spacious interior and alphanumeric keypad for flexible code creation. Its main limitation is a somewhat complex setup process requiring precise button rotation. It is ideal for realtors and property managers needing temporary, portable key access.
The Master Lock 5423D is a wall-mount push-button combination lock box designed for the secure, permanent storage of up to five keys. It features a durable metal body and a customizable alpha/numeric keypad with large buttons for low-light usability. It is best suited for homeowners and landlords needing permanent, secure key storage at fixed locations.
| Attribute | | |
|---|---|---|
— | 5 keysbest | |
6.8 cm | 11.7 cmbest | |
2.1 cm | 7.9 cmbest | |
4 cm | 5.2 cmbest | |
| ↓ lower better | 0.45 kgbest | 0.91 kg |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Durability & Environment(1) | ||
Weather Resistance Rating | weather_resistant | waterproof |
Installation & Mounting(1) | ||
Mounting Type | shackle | wall_mount |
Storage & Capacity(1) | ||
Key Capacity (keys) | unlimited keys | 5 keys |
Design & Fit(3) | ||
External Height (cm) | 6.80 cm | 11.7 cm |
External Width (cm) | 2.10 cm | 7.9 cm |
External Depth (cm) | 4.00 cm | 5.2 cm |
Build & Design(2) | ||
Body Material | metal_plastic_coating | metal |
Product Weight (kg) | 0.45 kg | 0.91 kg |
Security & Access(1) | ||
Lock Type | pushbutton | push_button_keypad |
Products in the top-left offer the best value (high score, low price).
Professional reviewers praise the KeyGuard SL-500 for its superior storage capacity, intuitive phone-style keypad, and protective coating that prevents door scratches.
Demos simulate a positive user experience, noting the ease of fitting a handful of keys with space left over, but no recurring praise or complaints from actual buyers are documented.
Search results lack dedicated expert reviews from major publications like Wirecutter or Consumer Reports. However, retailer specifications from Lowe's and Home Depot emphasize the product's durability, ease of combination setting, and weather resistance.
Direct user reviews are not present in the provided data. Common praise in similar Master Lock listings focuses on simple installation and reliable access.
