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🔐 Unlock smarter, not harder — your keys’ new best friend.
The Master Lock 5400EC2 Portable Key Lock Box 2-Pack offers secure, weather-resistant storage for up to five standard keys per box. Featuring a resettable 4-digit combination lock and a vinyl-coated shackle that fits most door knobs, it provides flexible, tool-free installation ideal for homeowners, rental hosts, real estate professionals, and emergency access. Trusted durability meets convenient key management in a compact, dual-pack design backed by Master Lock’s limited lifetime warranty.























| ASIN | B0BHZRFXX3 |
| Additional Features | Resettable |
| Best Sellers Rank | #294 in Office Products ( See Top 100 in Office Products ) #1 in Security Lock Boxes |
| Brand | Master Lock |
| Brand Name | Master Lock |
| Color | Black |
| Control Method | Touch |
| Controller Type | Hand Control |
| Customer Reviews | 4.7 out of 5 stars 25,436 Reviews |
| Finish Types | Painted |
| Global Trade Identification Number | 00071649370472 |
| Included Components | Set Your Own Commbination Lock Box - 2 Pack |
| Item Dimensions | 1.5 x 3.25 x 6.25 inches |
| Item Type Name | Lock Box with Combination Lock |
| Item Weight | 16 ounces |
| Item dimensions L x W x H | 1.5 x 3.25 x 6.25 inches |
| Lock Type | Combination Lock |
| Manufacturer | Master Lock |
| Manufacturer Part Number | 5400EC2 |
| Manufacturer Warranty Description | Limited lifetime warranty |
| Material | Metal, Vinyl |
| Material Type | Metal, Vinyl |
| Model Name | Lock Box with Combination Lock |
| Model Number | 5400EC2 |
| Number of Items | 2 |
| Number of Packs | 2 |
| Number of Pieces | 2 |
| Recommended Uses For Product | Home |
| Shape | Rectangular |
| Special Feature | Resettable |
| Style Name | Standard Shackle |
| UPC | 791709983038 071649370472 |
| Unit Count | 2 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
Security. easy to share entry with trusted and emergency personal.
Good quality. easy to use.
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.
L**R
I wasn't sold on the electronic locks installed on the door itself
I've used these for both my house and a rental condo. It's easy to set and change codes when needed. Good for trusted contractors when you're not at home. It's also saved me a trip when condo tenants lock themselves out, and roommates lose or forget their keys. I was on a cruise last year and needed a neighbor to enter my condo to resolve an issue. I just texted him the code. I wasn't sold on the electronic locks installed on the door itself. If it's an older construction where the door sticks, etc., I was confident that the bolt would always retract properly. This seemed like a very inexpensive and reliable option for me.
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.
S**I
Good one, stable
Good one, stable
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
1 month ago
3 weeks ago