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🔐 Unlock peace of mind with smart, weatherproof key control!
The Master Lock 5400EC Portable Key Lock Box offers secure, weather-resistant storage for up to five house keys. Featuring a durable metal body and a resettable 4-digit combination lock, it provides flexible, keyless access control ideal for homeowners, real estate professionals, and rental hosts. Its compact, scratch-free design easily hangs on most door knobs or gates, ensuring reliable outdoor use year-round.























| ASIN | B0002YP1VC |
| Additional Features | Weather Resistant |
| Best Sellers Rank | #228 in Office Products ( See Top 100 in Office Products ) #1 in Security Lock Boxes |
| Brand | Master Lock |
| Brand Name | Master Lock |
| Color | Black |
| Connectivity Protocol | Wi-Fi |
| Control Method | Touch |
| Controller Type | Hand Control |
| Customer Reviews | 4.7 out of 5 stars 25,465 Reviews |
| Finish Types | Powder Coated |
| Global Trade Identification Number | 00071649214516 |
| Included Components | Lock Box |
| Item Dimensions | 1.5 x 3.25 x 6.25 inches |
| Item Highlight | Secure Storage Lock Box For Realtors, Landlords, Tenants & Property Managers, Weather Resistant, Resettable 4-digit Code |
| Item Type Name | Lock Box |
| Item Weight | 16 ounces |
| Item dimensions L x W x H | 1.5 x 3.25 x 6.25 inches |
| Lock Type | Mechanical Code Lock |
| Manufacturer | Master Lock |
| Manufacturer Part Number | 5400EC |
| Manufacturer Warranty Description | Limited Lifetime Warranty |
| Material | Metal |
| Material Type | Metal |
| Model Name | 5400D |
| Model Number | 5400D |
| Number of Items | 1 |
| Number of Packs | 1 |
| Number of Pieces | 5 |
| Recommended Uses For Product | Outdoor use, Real estate access control, Security gates & fences |
| Shape | Rectangular Cylinder |
| Special Feature | Weather Resistant |
| Style Name | Standard Shackle |
| UPC | 071649214516 |
| Unit Count | 1 Count |
T**.
Reliable, Secure, and Easy to Set Up
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.
M**S
Better safe that sorry.
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.
K**N
Solidly made with clear instructions
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.
A**R
Master Key Lock
Lock is sturdy and instructions are written well to ensure lock is easy to set up. Love it!!
S**Z
Reliable, Secure, and Perfect for Realtors
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.
A**Y
The price is very reasonable
I love these! I am an agent and they come in handy with my listings
J**E
Exactly What I Was Looking For
My choice came down to this lock or the GE "push button" locks. I actually have a GE push button lock, but it is not the mobile padlock version...it is the permanent version that is mounted to a wall. Here are the considerations that went through my mind in deciding to purchase this lock: 1) The GE lock's push buttons can be done in any order. Therefore, as others have stated in reviews about that product line, it is easier to crack, as opposed to requiring a set order. The Master Lock requires a set order, so I like that better. 2) The keys in the GE locks are attached directly to the plate that comes off (fully off) the front of the lock assembly. With the Master Lock, the keys are stored separately in the lock and the front simply comes down but stays attached to the locking unit. I like this MUCH better. I have experience with my GE lock where it is cumbersome to use the key attached to the lock plate. 3) I wanted a mobile version of the lock that could be mounted with a shackle instead of mounting the locking assembly permanently to a wall. The shackle allows you to place it, and relocate the lock, to many areas easily, including a door knob. The GE version holds 3 keys at the most. The Master Lock is advertised to hold 5, but it seems like it might hold a bit more if the keys are small enough. I needed to hold more keys than 3. 4) The Master Lock has a cover that goes up to cover the combination dialers. While it is a small point, I like that the numbers are concealed and do not draw as much attention as if they were not covered. Another benefit of the cover that didn't apply to me because I mounted the lock inside as opposed to outside, is that it adds more protection agains the elements. I installed the lock today over a doorknob...it fits perfectly and securely. The lock feels VERY durable. Another plus that I didn't notice until I received the lock is that the black you see on the sides and back of the lock, as well as the shackle, is a rubber material that protects against anything it touches...very nice! I tested the lock out several times before putting the keys in it, since I saw that a couple of other reviewers had mentioned issues...all is working well so far. Setting the combination and undoing the shackle is very easily from inside the lock. One thing I want to pass on is that the door to the lock won't close if the shackle is not also closed. I was trying to shut the door of the lock while I was putting the shackle over my doorknob when I discovered this. So far, I am very, very pleased with this lock and I would definitely buy another one of these if the need arose.
A**R
Security. easy to share entry with trusted and emergency personal.
Good quality. easy to use.
O**L
Scratches on shutter door
Like: purchasing to delivery is satisfactory and excellent Dislike: received a product with defects; obvious scratches on shutter door. I returned the product straight away after receiving it.
お**よ
とても便利です。
自宅用と車庫用と2つ購入しました。シンプルで使いやすく、モノとしてもしっかりしてます。
B**S
Quality
Easy to use.
M**N
Good
Good
C**S
Good so far
Working fine so far - waiting to see if it becomes weather affected.
Trustpilot
3 weeks ago
2 days ago