The Master Lock 5401EC lock box dimensions are listed by the manufacturer as essential for securing keys and small items, both indoors and outdoors. If you're curious about setting up the combination, the lock box offers a 4-digit code you can customize, with thousands of possible combinations. You can also reset it if you want, which might be useful if you need to share access with others occasionally or just want an extra layer of security.

One interesting nugget from our research is that the combination can be entered in any order. So, if you originally set '1234' as your code, you could also open it with '4321' or any variation using those digits. While this is pretty handy, think about where you place the lock box to avoid anyone unintended accessing it if you're storing something sensitive.

It's built from strong metal, something backed up by several reviews, so it'll likely hold up well whether you put it at home or at a workplace. A small heads-up, though—it doesn’t automatically shut after opening, so you’ll have to dial in the combo to lock it again.

This might be mildly annoying for some folks, but many find its sturdiness and user-friendly design worth it.

All in all, if you need to store keys securely and want a nice mix of security and ease of access, the Master Lock 5401EC seems like a decent pick. Just take a moment to consider where you'll set it up to get the best out of it while keeping any risks at bay.

Changing the combination on your Master Lock 5401EC lock box isn't too tricky, but there are a few things you should keep in mind to avoid any mishaps.

First up, make sure you change the combination while the lock is open. You definitely don't want to get locked out.

Here's how to do it:

1. Open the Lockbox: Enter your current combination to open it. If it's brand new, use the factory-set combination from the user manual.

2. Find the Reset Lever: Inside, there’s a reset lever usually sticking out on the side. You'll need to flip it, which might need a bit of pressure.

3. Set Your New Code: Hold the reset lever and set your new code by spinning the dials. Make it something personal but not too guessable.

4. Lock it In: Let go of the reset lever to secure your new combo.

5. Check it Works: Close the lockbox and try out your new combination a few times to make sure it opens easily.

One thing to be aware of is that this lock recognizes the right numbers even if they're not in the exact order. So if your combo is 4213, entering something like 1234 might still open it. It’s convenient but something to consider if you need tight security.

Also, even though it's meant to hold up to five keys, some folks have found that bulky items, like a car fob, might not fit so well.

The lockbox is pretty sturdy and handles outdoor conditions nicely, thanks to its solid metal build and protective shutter door.

It's not too hard to install on a wall, and it's perfect if you want a straightforward way to share access without fussing over batteries or anything high-tech.

For general use where convenience is your main goal, the Master Lock 5401EC should do the job. However, if top-level security is your priority, you might want to keep looking.

So, about the Master Lock 5401EC and its weather resistance—it's a pretty solid lock box when it comes to security and sturdiness for storing keys.

But, if you're thinking of using it outdoors, there's something to keep in mind. The manufacturer's description doesn't specifically say it's fully weather-resistant. Just worth noting if your plan is to mount it outside.

Speaking of mounting, it comes with four screws for installation, which usually does the job for most wall types.

But our research shows that some folks found these screws not quite strong enough for tougher surfaces like brick or stone. They suggest using longer screws, like 1.5-inch decking screws, for a bit more peace of mind.

For installation, you'll need a drill and a screwdriver. The process is pretty straightforward due to the diamond pattern of the mounting holes.

This pattern helps keep everything balanced and stable. Some say that getting to the bottom hole can be a bit of a hassle if your drill is bulky.

Using a power drill with a long bit or just a manual screwdriver can make this part easier.

Once it's all set up, the Master Lock 5401EC is praised for its durability. It holds up well even if it's tested, thanks to its strong metal build.

So, people like it for the security it offers, knowing it can withstand some rough handling.

To wrap it up, while you might have to tweak a few things during setup—like upgrading the screws—the general thought is that the installation isn’t too difficult.

It's a reliable choice for keeping keys safe outdoors.

Just remember, if you're worried about harsh weather, you might want to take extra steps to protect it based on the conditions where you live.