The Master Lock 5400D Combination Portable Lock Box is a convenient, secure and reliable way to keep your valuables safe. This highly rated lock box offers an efficient combination-based locking system that can be adjusted and reset according to your needs. It also features a solid steel construction with a durable powder coat finish that ensures maximum protection against rust and corrosion. With its wide variety of features, the Master Lock 5400D is one of the best portable lock boxes on the market. Read on to learn more about the features and benefits of this security solution.
Master Lock 5400D Combination Portable Lock Box Review

The Master Lock 5400D Combination Portable Lock Box is the ideal security solution for your home, office or vehicle. With a solid steel construction and reliable combination locking system, this lock box ensures that no one can access your belongings without the correct code. It’s easy to use and transport, making it perfect for those who need extra security while on the go. Don’t worry about losing your key – the combination lock eliminates any chance of this happening.
Key Features:
1. Solid steel construction with reliable 4-number combination lock.
2. Easy to transport with included carrying handle.
3. Resistant to prying and drilling for added security.
4. Push button design for fast, easy operation.
5. Ideal for home, office or vehicle security needs.
Product Details
| Product Name | Master Lock 5400D Combination Portable Lock Box |
|---|---|
| Material | Steel and Plastic |
| Dimensions (L x W x H) | 3.25 x 5.38 x 9 inches |
| Weight | .90 pounds |
| Capacity | .50 cubic feet |
| Resettable Combination & Key Access | Yes |
| Application | Secure storage of smallitems such as keys and cards |
| Shackle Size | 1/4 in. (6 mm) diameter, 1-15/16 in. (49 mm) wide |
Master Lock 5400D Combination Portable Lock Box Pros and Cons
Pros of Master Lock 5400D Combination Portable Lock Box
1. Lightweight and Compact Design: Its lightweight design makes it easy to carry around, while its compact size allows you to put it almost anywhere in your home or office.
2. Easy to Use: The combination lock is easy to set up and use, making it a great security solution for your valuables.
3. Secure Storage Solution: With solid steel construction and a pry-resistant lid, this lock box provides maximum security for your valuable items.
4. Cost-Effective: This lock box is an affordable security solution compared to other products on the market.
Cons of Master Lock 5400D Combination Portable Lock Box
1. Limited Internal Space: Although this lock box has a spacious internal area, its limited space might not be able to store large items like laptops or tablets.
2. Not Waterproof: Without proper protection, stored items may be damaged due to water exposure or humidity.
3. Manual Combination System: The manual combination system may be difficult for some users to operate and may require frequent resetting of the combination code.
Who are They for
The Master Lock 5400D Combination Portable Lock Box is a great way to securely store your valuables on the go. This lock box features a 3-digit combination lock that provides extra security, allowing you to easily access your items with peace of mind. Its small and lightweight design makes it perfect for carrying around in a backpack or bag, while its sturdy construction ensures it can withstand wear and tear. The interior of the box is lined with foam for added protection for your items, and its heavy-duty steel shackle offers further security. With its convenient size and secure design, this portable lock box is an ideal choice for anyone looking for an easy way to keep their valuables safe.
My Experience for Master Lock 5400D Combination Portable Lock Box

I was so glad when I bought the Master Lock 5400D Combination Portable Lock Box. It’s like a dream come true! It’s so convenient to carry around since it’s small and lightweight. When I go out camping or to the beach, I can keep my important items safe and secure with this lock box. Plus, it has an easy-to-use combination access that only I know. So no one else can open it without me there!
The 5400D also comes with a durable metal body, which is great for protecting my valuables from weather and other elements. It even has an interior tray to store smaller items such as money, keys and jewelry. No more worrying about losing these items in the sand or water!
Another great feature of this portable lock box is its anti-shim technology. This means that even if someone tries to pick the lock, they won’t be able to open it because it has been designed to resist tampering. So now, I can confidently leave my belongings behind and know that they are secure.
All in all, the Master Lock 5400D Combination Portable Lock Box is a must-have for anyone who wants extra security for their valuable items. Whether you’re going camping, to the beach or anywhere else, you can count on this lock box to keep your things safe and sound.
What I don’t Like
Product Disadvantages List:
1. The combination must be reset after each use, which can be time consuming.
2. The box is not waterproof or weatherproof.
3. It’s relatively small, so it won’t fit larger items like a laptop or tablet.
4. The shackle is only 1-inch long and 5/16-inch wide, so it’s not suitable for larger locks or gates.
5. The lock box is made of plastic, so it’s not as durable or secure as metal options.
How to Securely Store Valuables with the Master Lock 5400D Combination Portable Lock Box
The Master Lock 5400D Combination Portable Lock Box is a great way to secure your valuable items. This lightweight and durable lock box is designed for easy transportation and storage, making it ideal for use in dorms, offices, or even when traveling. With its reliable 4-digit combination locking system and heavy-duty steel construction, the 5400D ensures that your valuables stay safe and sound.
Here are some simple steps on how to securely store valuables with the Master Lock 5400D Combination Portable Lock Box:
Step 1: Place your valuable items inside the lock box. Be sure that all of your items fit securely inside before closing the lid.
Step 2: Set a 4-digit combination code and make sure you remember it. The combination code should be unique and not easily guessed by others.
Step 3: Close the lid and place the lock box in a secure location. Make sure that it cannot be seen or accessed by anyone else as this could put your valuables at risk.
Step 4: When you need access to your valuables, simply open the lid using your combination code and retrieve what you need. Once done, close the lid and re-secure the lock box in its original location.
With the Master Lock 5400D Combination Portable Lock Box, you can rest assured that your valuables are stored safely away from prying eyes.
Questions about Master Lock 5400D Combination Portable Lock Box
What is the Master Lock 5400D Combination Portable Lock Box?
The Master Lock 5400D Combination Portable Lock Box is an easy-to-use, secure storage solution designed to keep important items safe. This lock box features a 3-digit combination dial for added security and convenience, making it ideal for storing cash, jewelry, handguns, and other items in your home or office.
What is the size of the Master Lock 5400D?
The Master Lock 5400D has a small form factor measuring 6″ (15.2 cm) wide by 3.25″ (8.3 cm) deep by 9.5″ (24.1 cm) high, allowing you to store it virtually anywhere. It’s perfect for placing on shelves, nightstands, desks or even inside drawers.
How secure is the Master Lock 5400D Combination Portable Lock Box?
The Master Lock 5400D Combination Portable Lock Box offers superior protection with its durable metal construction and 3-dial combination lock system. The combination can be reset as often as needed to ensure maximum security and peace of mind.
Can I use the Master Lock 5400D outdoors?
Yes, the Master Lock 5400D Combination Portable Lock Box is designed to withstand outdoor elements such as rain and dust, making it perfect for keeping items safe while camping or traveling.
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