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🔐 Unlock convenience and security with Master Lock’s ultimate key keeper!
The Master Lock 5400EC Key Lock Box offers a robust, weather-resistant solution for securely storing up to five standard house keys. Featuring a resettable 4-digit combination lock and a vinyl-coated shackle that fits most door knob styles, it’s perfect for real estate, rentals, or emergency access. Backed by a limited lifetime warranty, this compact lock box blends durability with customizable security for peace of mind.

| ASIN | B0002YP1VC |
| Additional Features | Not_Performance_Used |
| Best Sellers Rank | #238 in Office Products ( See Top 100 in Office Products ) #2 in Security Lock Boxes |
| Brand Name | Master Lock |
| Color | Black |
| Connectivity Protocol | Wi-Fi |
| Control Method | Touch |
| Controller Type | Hand Control |
| Customer Reviews | 4.7 4.7 out of 5 stars (25,185) |
| Finish Types | Powder Coated |
| Global Trade Identification Number | 00071649214516 |
| Included Components | Lock Box |
| Item Dimensions | 3.64 x 2.04 x 0.74 inches |
| Item Type Name | Lock Box |
| Item Weight | 16 ounces |
| Lock Type | Mechanical Code Lock |
| Manufacturer | Master Lock |
| Manufacturer Part Number | 5400EC |
| Manufacturer Warranty Description | Limited Lifetime Warranty |
| Material Type | Metal |
| Model Name | 5400EC |
| Model Number | 5400D |
| Number of Pieces | 5 |
| Recommended Uses For Product | Household |
| Shape | Rectangular Cylinder |
| Smart Home Compatibility | Not Smart Home Compatible |
| Style Name | Standard Shackle |
| UPC | 071649214516 |
| Unit Count | 1.0 Count |
P**7
Excellent realtor boxes!!
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!!
N**Z
Great lockbox
My rental property doesn’t have a smart door lock yet so I needed a lockbox for the keys. It didn’t fit on my front outside door handle but did fit on a different one inside the garage. It fit 2 keys with keychains just fine. It was easy to use/ program and seems very strong.
C**A
Very sturdy and very reasonably priced.
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.
J**R
Excellent Choice!!
Excellent choice! I needed a quick lock box combo for my listing, and it arrived swiftly! The instructions were clear and easy to set the code! Perfect for me! As a realtor, I now prefer the lock box combo over the Supra key!
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.
C**C
Easy to use
So easy to use!! Life saver..
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.
C**R
Well Made Lock Boxes
Good & reliable. Long lasting.
N**A
Something I never thought about it before. Superb
O**L
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
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。
A**R
As a realtor for over 20 years, I've been using Masterlock lockboxes for many years, they are spacious and fit several keys and best of all they don't freeze in the winter when left outside
M**N
Good
Trustpilot
1 month ago
5 days ago