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Master Lock Key Lock Box for House Keys – Outdoor Portable Combination Lockbox with Resettable 4 Digit Code, Weather Resistant Durable Metal Body, Holds 5 Keys, 5400EC2, Black, 2 Pack

  • Based on 23,335 reviews
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Availability: In Stock.
Fulfilled by Amazon

Arrives Sunday, Jun 28
Order within 20 hours and 11 minutes
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Style: Standard Shackle


Size: 2 Pack


Color: Black


Features

  • 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
  • IDEAL FOR HOME, RENTALS, AND EMERGENCY USE: Designed for residential homes, vacation rentals, real estate access, and emergency entry situations where dependable, shared key access is essential
  • WHY MASTER LOCK: Large capacity key lock boxes enables secure storage of up to five standard (2 inch) house keys; Shackle fits most ball, biscuit, and tulip door knob styles

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.

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


Included Components: Set Your Own Commbination Lock Box - 2 Pack


Model Number: 5400EC2


UPC: 791709983038 071649370472


Model Name: Lock Box with Combination Lock


Global Trade Identification Number: 72


Manufacturer Warranty Description: Limited lifetime warranty


Manufacturer: Master Lock


Unit Count: 2.0 Count


Manufacturer Part Number: 5400EC2


Item Type Name: Lock Box with Combination Lock


Additional Features: Resettable


Lock Type: Combination Lock


Controller Type: Hand Control


Control Method: Touch


Style Name: Standard Shackle


Color: Black


Shape: Rectangular


Material Type: Metal, Vinyl


Finish Types: Painted


Item Dimensions: 1.5 x 3.25 x 6.25 inches


Item Weight: 1 Pounds


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Jun 28

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.

Learn more about financing & leasing here.

Top Amazon Reviews


  • 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

  • Excellent realtor boxes!!
Style: Standard Shackle Size: 2 Pack Color: Black
Master lock boxes are easy to use, install change the codes on and can hold multiple sets of keys. Very sturdy and hard to remove if you do not have the combo for the box. They fit on most door knobs or water spigets. Definitely very secure and functional!!
Reviewed in the United States on October 29, 2025 by Pocket_Ninja_007

  • Very sturdy and very reasonably priced.
Style: Standard Shackle Size: 1 Pack Color: Black
This is a very sturdy lock. Very nice appearance, even though you'll want to secure it to a pipe or something low to the ground. It works great and looks even better.
Reviewed in the United States on February 24, 2026 by Cynthia B Zientara

  • The code can be reset.
Style: Standard Shackle Size: 1 Pack Color: Black
I have 12 people who need access to a building. I give them the code and each can retrieve the door keys. This way i dont have keys scattered out everywhere. I can change the code as often as needed. Very sturdy and dependable.
Reviewed in the United States on May 11, 2026 by Tony D.

  • Reliable, Secure, and Perfect for Realtors
Style: Standard Shackle Size: 2 Pack Color: Black
This Master Lock key lock box works exactly as expected and is perfect for realtors and property managers. The build quality is solid and durable, and it holds keys securely without feeling flimsy. Setting the combination code was quick and easy, and the lock opens smoothly every time. It’s great for outdoor use and gives peace of mind knowing keys are safely stored while still being easily accessible for showings or maintenance. Very convenient, dependable, and professional-looking. A must-have tool for anyone in real estate highly recommend. ... show more
Reviewed in the United States on February 2, 2026 by sana faiz

  • Works well
Style: Standard Shackle Size: 1 Pack Color: Black
Works well
Reviewed in the United States on June 5, 2026 by Mjay

  • Secure key lock box Secure key lock box
Style: Standard Shackle Size: 1 Pack Color: Black
Easy to use, change code. Like that can put on different doors. Good price. Looks & feels durable & secure
Reviewed in the United States on May 4, 2026 Reviewed in the United States on May 4, 2026 by Nancy Stoll

  • 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

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