I like the how-to video for setting the combination. How do I open the U-lock hasp to secure it to the door, hose bib, etc?

Simply rotate the combination given when you PURCHASED the lock......pull....and it opens. Also, your own combination number is easy to set with knob inside of unit.

My house key is 2.5 inches long X 1 inch wide and shaped like a car key. Would my house key fit in this product?

The box is 3" x 2 1/2" x 1 1/2" deep, plus some additional space at the top. You should be able to fit the key in.

Can the code be changed?

Yes, easily. When you open the keybox you slide a lever over and then change the combination to anything you want, then slide the lever back and you are done. So you can use the keybox at different properties and never have the same code.

How does this work? Want to use it when I leave an elderly relative home in case fall alert is triggered.

It is a sturdy combination lock which you attach to the outer door handle. Give the customizable combination to your fall alert company, local emergency personnel, and other trusted persons. It works great

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Master Lock Key Lock Box for House Keys – Outdoor Portable Combination Lockbox with Resettable 4 Digit Code, Weather Resistant Durable Metal Body, Holds 5 Keys, 5400EC Black

Product ID: 2029903

Details

Brand
Master Lock
Item dimensions L x W x H
1.5 x 3.25 x
Lock Type
Mechanical
Material
Metal
Special Feature
Weather

🔒4-digit resettable combo

🌧️weather-resistant metal body

🗝️holds up to 5 keys

€ 75.09

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Sold byAmazon NetherlandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔐 Unlock peace of mind with every code change!

DAMAGE FREE INSTALLATION - Vinyl-coated shackle fits most door knobs and gates without scratching surfaces.
BUILT TO BRAVE THE ELEMENTS - Weatherproof metal body and shutter door protect your code and keys rain or shine.
CUSTOMIZABLE ACCESS CONTROL - Set and reset your unique 4-digit code anytime—no keys, no hassle.
TRUSTED BY PROS HOSTS ALIKE - Ideal for realtors, Airbnb hosts, and families managing secure, flexible entry.
SECURE KEY SHARING MADE SIMPLE - Grant trusted access without hiding keys under mats or risking copies.

The Master Lock 5400EC is a compact, durable outdoor lock box designed to securely store up to five house keys. Featuring a weather-resistant metal body and a protective shutter, it safeguards your keys and combination dials from rain and dust. Its resettable 4-digit mechanical code offers flexible, keyless access control, while the vinyl-coated shackle ensures easy, scratch-free installation on most door knobs and gates. Perfect for homeowners, realtors, and rental hosts seeking reliable, convenient key management.

Specifications

ASIN	B0002YP1VC
Additional Features	Weather Resistant
Best Sellers Rank	#237 in Office Products ( See Top 100 in Office Products ) #1 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 (25,344)
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 Type Name	Lock Box
Item Weight	1 Pounds
Lock Type	Mechanical Code Lock
Manufacturer	Master Lock
Manufacturer Part Number	5400EC
Manufacturer Warranty Description	Limited Lifetime Warranty
Material Type	Metal
Model Name	5400D
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

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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Great price for an authentic product. Fast international shipping too!

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€ 75.09

Duties & taxes included

In stock

Sold byAmazon NetherlandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Netherlands.

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

Join PRO →

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

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