Master Lock

Master Lock Key Lock Box Outdoor Lock Box for House Keys Portable Combination Lockbox Resettable Code 5400EC Black

59+ bought in the past month

$36.99$39.98

About this item

  • 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
  • Set your own four-digit combination lock box; Reset the combination for thousands of personalized combination code options
  • For indoor and outdoor use; Key safe is constructed with a metal body for durability, vinyl coated shackle to prevent scratching, and shutter door to protect combination dials from weather
  • SPECIFICATIONS: Exterior dimensions: 6-1/4 in (158.75 mm) height, 3-1/4 in (82.55 mm) width, 1-1/2 in (38 mm) depth; Lock box shackle is 1-13/32 in (36 mm) long, with 1-7/8 in (48 mm) width, 13/32 in (10 mm) shackle diameter
  • Capacity for 5 standard (2 inch) house keys; Interior dimensions: 1 in (25 mm.) height, 2-13/32 in (61 mm.) width, 1 in (25 mm.) depth; capacity for 5 standard keys
$36.99
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Product details

BrandMaster Lock
Special FeatureNot_Performance_Used
Lock TypeMechanical Code Lock
Item dimensions L x W x H1.5 x 3.25 x 6.25 inches
MaterialMetal

Technical specifications

brandMaster Lock
special_featureNot_Performance_Used
lock_typeMechanical Code Lock
item_dimensions_l_x_w_x_h1.5 x 3.25 x 6.25 inches
materialMetal
recommended_uses_for_productHousehold
styleStandard Shackle
colorBlack
number_of_pieces5
included_componentsLock Box, Key
controller_typeHand Control
item_weight1 pounds
control_methodTouch
connectivity_protocolWi-Fi
upc071649214516
model_name5400EC
global_trade_identification_number00071649214516
manufacturerMaster Lock
part_number5400EC
product_dimensions1.5 x 3.25 x 6.25 inches
item_model_number5400D
is_discontinued_by_manufacturerNo
size1 Pack
patternKey Lock Box
item_package_quantity1
mounting_typeFloor Mount
special_featuresNot_Performance_Used
batteries_includedNo
batteries_requiredNo
warranty_descriptionLimited Lifetime Warranty
best_sellers_rank#522 in Office Products ( See Top 100 in Office Products ) #2 in Security Lock Boxes
date_first_availableMay 31, 2008

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Customer reviews

4.725,103 ratings

Customers say

Customers find the lock box easy to use and program, with solid build quality and reliable performance.

★★★★★

Excellent realtor boxes!!

Pocket_Ninja_007October 29, 2025

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!! Read more

★★★★★

EXCELLENT KEY SAFE

J.E.September 15, 2025

I'm impressed with the design, features, and build quality of the Masterlock Key Safe. The installation instructions are clear, simple, and easy to follow. I decided to place the safe in a secure location near the front door, not on the door knob itself, but rather to a nearby galvanized water pipe. I've tried it out a couple of times and am pleased with the accessibility and ease of use. I was especially pleased with the tough, rubber-type black cladding that protects the case and the sturdy shackle, and there's even a clever, black cover that slides down to access the 4-digit, rotating combination locking mechanism. And I feel the price is reasonable for such a strong, high-quality product. Read more

Review image 1
★★★★★

works great!

rachelJanuary 3, 2026

Excellent. easy to use! Read more

★★★★★

Perfect lock box

Lauren WallDecember 29, 2025

Use for real estate and the lockbox is perfect fits a few keys and it’s easy to use. Definitely worth the money! It is durable. Read more

★★★★☆

Good Sturdy Lock, but overall design has few faults

Dr KathyApril 7, 2015

It works well and is all it claims to be. It's easy to prepare and install. Simple to change the combination and the protective cover over the tumblers works nicely. The lock is very strong, sturdy and of good construction. It is surprisingly hefty and the little number dials move quite easily, even with bigger fingers. It looks like a real lock-- not like many of them that just look cheap and easy to break. The few issues I have are sadly across many different brands and seem to be issues with this style of lock, not just this particular one. My issues are that ONE, you must turn the number wheels after closing it or it remains in the open position, even though it looks locked. I often find myself forgetting to scramble the wheels thereby failing to secure the lock and essentially leaving it open, even though it truly looks like it is secured. TWO-- once the front is opened, someone could easily remove the entire lock from your door knob, as the latch that locks the handle down is easily visible and quite simple to disengage, allowing the entire lock to be removed when hung on a door knob. THREE--once lock is open, someone with minimal experience with these styles of locks, could easily change your lock code without your knowledge.-- Then you would be "locked out" of your own lock box! FINALLY -- I wish it had a chain firmly attached inside or had some way for you to attach a chain (or similar) to something other than the handle that goes over the knob (too easy to remove it then). The reason is so that I wanted to attach a chain long enough so that one could use the key to unlock the door, but could not easily remove the key from the box (to steal or make a copy, etc). We have different people coming and going, helping my elderly parents (which is why we needed something) and while you can change the combo quite easily, an unscrupulous person could very easily completely remove the key and or lock, thereby entirely defeating the security and reason for dong this. Currently you can only attach something to the hanging mechanism inside the box and once the lock box is open the chain, attached key, or ENTIRE lock can be easily and simply removed or altered. Other than these issues (common to many similar products or brands sadly), I really like the lock and would probably buy one again as these issues seem to be present in many of similar styles and brands of this kind of product line. This particular one is one of the easiest to use and sturdiest I have found despite its faults. I would probably buy again and would really like to figure out how to wall mount it! Read more

★★★★★

Easy to use

JairoDecember 29, 2025

The lock has been working great, good size and easy to set up the combination lock. Read more

★★★★★

Very sturdy. A great buy

OnLineShopperOctober 23, 2025

I use this to pay the lawn mower guy. I don't have to be there when he decides to show up. Great purchase. Easy to change the code. Very sturdy and weather proof. A great buy! Read more

★★★★★

Perfect lock box

MonicaDecember 23, 2025

Works just how you would expect! Very easy to set up and to use. Read more

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