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.Duty & taxes paid at delivery

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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, 5400D 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

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$88.37

Duties & taxes included

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Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔐 Unlock convenience and control—your keys, your rules.

CUSTOMIZABLE 4 DIGIT CODE - Thousands of combos let you reset access anytime—total control in your hands.
BUILT TO BRAVE THE ELEMENTS - Durable metal body + protective shutter door shields from rain, dust, and scratches.
FITS MOST DOOR KNOBS INSTANTLY - Portable shackle design installs tool-free on ball, biscuit, and tulip knobs.
SECURE KEY SHARING NO COPIES NEEDED - Eliminate risky hidden keys with controlled access for trusted users.
PERFECT FOR HOMES RENTALS EMERGENCIES - Streamline access for family, guests, or urgent situations with peace of mind.

The Master Lock 5400D Key Lock Box is a weather-resistant, durable metal lockbox designed to securely store up to five standard house keys. Featuring a resettable 4-digit combination lock and a vinyl-coated shackle that fits most door knobs, it offers flexible, keyless access ideal for homeowners, rental hosts, real estate agents, and emergency use. Compact yet robust, it protects internal dials from outdoor elements and provides a trusted solution for controlled, shared entry.

Specifications

ASIN	B0002YP1VC
Additional Features	Weather Resistant
Best Sellers Rank	#92 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 (25,287)
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	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	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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