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🔐 Unlock peace of mind with Master Lock’s ultimate key safe!
The Master Lock 5400D is a portable, weather-resistant lock box designed to securely store up to five standard keys. Featuring a customizable 4-digit combination lock and a durable metal body with a vinyl-coated shackle, it fits most door knob styles and is ideal for both indoor and outdoor use. Compact yet spacious, it offers reliable security with easy portability, backed by a limited lifetime warranty.


| ASIN | B0002YP1VC |
| Additional Features | Portable |
| Best Sellers Rank | #81,507 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #270 in Combination Locks |
| 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 24,045 Reviews |
| Finish Types | Black |
| Global Trade Identification Number | 00071649214516 |
| Included Components | The product is key storage lock/shackle;Key storage door pivots open smoothly & remains attached to lock body for convenient operation;The product is manufactured in china;Portable Lock Box features a 3-1/4in (83mm) wide metal body for durability.;Large internal cavity prevents jamming, even when holding multiple keys;Set your own 4-digit combination for keyless convenience and increased security;… |
| Item Dimensions | 38 x 83 x 159 millimeters |
| Item Type Name | Set Your Own Combination Portable Lock Box |
| Item Weight | 1 Pounds |
| Item dimensions L x W x H | 38 x 83 x 159 millimeters |
| Lock Type | Combination Lock |
| Lock type | Combination Lock |
| Manufacturer | Master Lock |
| Manufacturer Part Number | 5400EC |
| Manufacturer Warranty Description | Limited Lifetime Warranty |
| Material | Metal |
| Material Type | Metal |
| Model Name | 5400EC |
| Model Number | 5400D |
| Number of Pieces | 5 |
| Recommended Uses For Product | Outdoor use, Real estate access control, Security gates & fences |
| Recommended uses for product | Outdoor use, Real estate access control, Security gates & fences |
| Shape | Rectangular |
| Smart Home Compatibility | Not Smart Home Compatible |
| Special features | Portable |
| Style Name | Standard Dial |
| UPC | 071649214516 |
| Unit Count | 1.00 Count |
C**S
Good so far
Working fine so far - waiting to see if it becomes weather affected.
M**I
Very secure way
Amazing product easy to use and very secure way to kee your key
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。
M**N
Good
Good
P**S
MASTER LOCK Portable Key Safe with Adjustable Shackle, Medium 175 x 72 x 52 mm
I purchased this in 2023 and I can happily say it is brilliant, very easy to use. I would certainly recommend it.
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.
Trustpilot
2 weeks ago
5 days ago