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Master Lock Portable Key Lock Box, Combination Lock Box 2-Pack 5400EC2

Based on 25,573 reviews
Condition: New
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$63.98

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Availability: In Stock.
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Arrives Saturday, Oct 31
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At a glance

Condition
New
Style
Standard Shackle
Size
2 Pack
Color
Black
Model
5400EC2
Dimensions
1.5 x 3.25 x 6.25 in
Weight
16 oz
In the box
Set Your Own Commbination Lock Box - 2 Pack

Features 6

  • SECURE SPARE KEY ACCESS WITHOUT COPIES: Safely store up to five standard house keys in one place, eliminating the need to hide keys or distribute duplicates while maintaining controlled access for trusted users; includes two set your own combination lock boxes
  • RESETTABLE 4 DIGIT COMBINATION CONTROL: Set and reset your own four digit combination at any time, giving you thousands of personalized code options for flexible access management without keys
  • BUILT FOR OUTDOOR RELIABILITY: Durable metal body with a protective shutter door shields combination dials from weather exposure, while the vinyl coated shackle helps prevent surface scratches
  • FITS MOST DOOR KNOBS AND HANDLES: Portable shackle design fits over most ball, biscuit, and tulip style door knobs, allowing quick installation without tools or permanent mounting

Description

Managing spare keys doesn’t have to mean hiding them under a mat or coordinating hand offs every time access is needed. The Master Lock 5400EC2 Key Lock Box offers a secure, dependable way to store and share house keys while keeping control firmly in your hands. Designed with a solid metal body and a protective shutter door, this portable lock box helps shield internal combination dials from rain, dust, and everyday outdoor exposure. The vinyl coated shackle allows the lock box to hang securely over most standard door knobs and handles without scratching surfaces, making it a practical option for both temporary and recurring use. With space to hold up to five standard house keys, this key lock box supports a wide range of real world scenarios. Homeowners can grant access to family members, dog walkers, or service professionals without duplicating keys. Short term rental hosts can simplify guest check ins and reduce lost key headaches. Real estate professionals can use it to coordinate showings efficiently. It also serves as a valuable solution for emergency access planning, especially for seniors or caregivers who need reliable entry when timing matters. The resettable four digit combination gives you flexibility as needs change. Update the code whenever access permissions change, without replacing the lock or managing physical keys. This makes the lock box especially useful in shared or transitional environments where control and accountability matter. Compact on the outside yet thoughtfully designed inside, the Master Lock 5400EC2 balances security, convenience, and durability. Whether mounted temporarily during a project or used daily as part of a home access routine, it delivers peace of mind through simple, proven design from a brand known for dependable security solutions. 2 per pack.

Specs 30

Brand Master Lock
Special Feature Resettable
Lock Type Combination Lock
Item dimensions L x W x H 1.5 x 3.25 x 6.25 inches
Material Metal, Vinyl
Brand Name Master Lock
Recommended Uses For Product Home
Number of Pieces 2

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Oct 31

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


Reliable, Secure, and Easy to Set Up
Style: Standard Shackle Size: 1 Pack Color: Black
This Master Lock key lock box is well built and gives me confidence that my keys are secure. The combination is easy to set and change, and the lock operates smoothly every time. It has plenty of room for house keys and is perfect for real estate showings, contractors, family access, or emergency backups. The weather-resistant construction has held up well outdoors, and the sturdy design feels like it will last for years. If you’re looking for a dependable outdoor key lock box from a trusted brand, this one is an excellent choice. Highly recommended. ... show more
Reviewed in the United States on June 29, 2026 by Tosha M.

Better safe that sorry.
Style: Standard Shackle Size: 1 Pack Color: Black
This arrived and was exactly what I needed and I recommend for a lot of folks. Hiding a key somewhere is not a great idea any longer. A way for someone to be able to get into your home in case of emergency or what have you. I live alone with my dog. I have 5 adult children that live less than 40 minutes from me. A lot of my neighbors are snowbirds or travel a lot. So not around often. My kids don’t carry keys to my house either. One day I was talking to one of my daughters on the phone as I was getting ready to go to a special work training on the other side of town. It was as early and only about 100 degrees outside. I was all ready to go, everything in my hands my water bottle, a snack, my bag, so as I held the phone between my ear and shoulder I took one hand and twisted the lock “tossed Hazel her treat yelling good bye” and shut the door. As the door shut. Oh NO!!!! Yep just locked mys of out of my house and my car. My daughter ended up calling a friend that’s a locksmith. He said he could probably break in and just charge her $20 for the call. My house is Fort Knox, I have one of the two unpickable locks, ant get in the windows because I have them all so they will only go up 2 inches. The only way is to break a window. He drilled through the lock and put the kind back in and was stunned that I had one like it. At that point my daughter said “Mom lock box today” for your sake and ours what if we couldn’t get a hold of you and then we couldn’t get in to the house. People need to think about these things, it has now come in handy for me to when one of my kids wants to borrow something from me and I’m not home. They just ask and I say sure and they go get it. So it works for a lot of things, but it’s really a pretty good idea but a lockbox not a hide a key key and the lockbox is pretty simple to use. You can input your own code in there so whatever you want it to be and you can also change it whenever you want to so give it to whomever you want and if you don’t want them to have it anymore, you change it just so simple. There’s also plenty of room inside of it to have a few keys if need be. I believe it’s also fireproof not that you need them to unlock your house but if you have a fireproof safe, I guess that would be a good place to have the key. ... show more
Reviewed in the United States on November 25, 2025 by Marrati investments

Solidly made with clear instructions
Style: Standard Shackle Size: 1 Pack Color: Black
I was worried that it would not fit my doorknob-older house. It did, but surprise! I couldn’t close my door with the key safe on it. That never crossed my mind, or if I would I be able to close my screen door with the key safe in place. I never did find that out because the second problem was that I couldn’t close the key safe with a key in it. I took it on and off, multiple times, got it working with a key in it and have put it on a different door. I don’t want to fiddle with it now. It’s working and fine where it is. I am not moving it. It’s easy to set or change the combination, and except for getting it to close with a key inside, it has been easy to install/operate. I feel safer with my spare key in this quality Master Key safe. It’s very sturdy and my key is going to be accessible only to me. It’s not going to be easy for a thief to open it. I think my problems closing it were due to me, and not due to any problems with the key safe. ... show more
Reviewed in the United States on May 13, 2026 by K. J. Kalin

Product is reliable
Style: Standard Shackle Size: 1 Pack Color: Black
Great product
Reviewed in the United States on September 15, 2026 by Michael D

Good Sturdy Lock, but overall design has few faults
Style: Standard Shackle Size: 1 Pack Color: Black
It works well and is all it claims to be. It's easy to prepare and install. Simple to change the combination and the protective cover over the tumblers works nicely. The lock is very strong, sturdy and of good construction. It is surprisingly hefty and the little number dials move quite easily, even with bigger fingers. It looks like a real lock-- not like many of them that just look cheap and easy to break. The few issues I have are sadly across many different brands and seem to be issues with this style of lock, not just this particular one. My issues are that ONE, you must turn the number wheels after closing it or it remains in the open position, even though it looks locked. I often find myself forgetting to scramble the wheels thereby failing to secure the lock and essentially leaving it open, even though it truly looks like it is secured. TWO-- once the front is opened, someone could easily remove the entire lock from your door knob, as the latch that locks the handle down is easily visible and quite simple to disengage, allowing the entire lock to be removed when hung on a door knob. THREE--once lock is open, someone with minimal experience with these styles of locks, could easily change your lock code without your knowledge.-- Then you would be "locked out" of your own lock box! FINALLY -- I wish it had a chain firmly attached inside or had some way for you to attach a chain (or similar) to something other than the handle that goes over the knob (too easy to remove it then). The reason is so that I wanted to attach a chain long enough so that one could use the key to unlock the door, but could not easily remove the key from the box (to steal or make a copy, etc). We have different people coming and going, helping my elderly parents (which is why we needed something) and while you can change the combo quite easily, an unscrupulous person could very easily completely remove the key and or lock, thereby entirely defeating the security and reason for dong this. Currently you can only attach something to the hanging mechanism inside the box and once the lock box is open the chain, attached key, or ENTIRE lock can be easily and simply removed or altered. Other than these issues (common to many similar products or brands sadly), I really like the lock and would probably buy one again as these issues seem to be present in many of similar styles and brands of this kind of product line. This particular one is one of the easiest to use and sturdiest I have found despite its faults. I would probably buy again and would really like to figure out how to wall mount it! ... show more
Reviewed in the United States on April 7, 2015 by Dr Kathy

Great value and great quality
Style: Standard Shackle Size: 2 Pack Color: Black
I use these for work in Real estate . Great value for the price. Easy to take on and off and easy to change the code and often as you need.
Reviewed in the United States on October 13, 2026 by Amazon Customer

The price is very reasonable
Style: Standard Shackle Size: 1 Pack Color: Black
I love these! I am an agent and they come in handy with my listings
Reviewed in the United States on August 29, 2026 by annmarie gay

Best Buy on Amazon!
Style: Standard Shackle Size: 1 Pack Color: Black
This is a really great buy to have especially for seniors living alone or basically anyone. I love this!
Reviewed in the United States on October 12, 2026 by Rylorae
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