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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Description

🔐 Secure your keys, unlock your peace of mind.

SPACIOUS 5 KEY CAPACITY - Holds multiple keys effortlessly with a jam-resistant large internal cavity.
WEATHER RESISTANT DESIGN - Protective cover prevents freezing and jamming, perfect for any climate.
PORTABLE FLOOR MOUNTABLE - Versatile installation options for on-the-go professionals or fixed secure access.
SET YOUR OWN 4 DIGIT COMBO - Personalized security without keys—never worry about lost keys again.
DURABLE POWDER COATED STEEL - Robust metal body with a sleek black finish that resists scratches and corrosion.

The Master Lock 5400D is a compact, durable key storage box featuring a customizable 4-digit combination lock and a spacious interior that holds up to 5 keys. Its powder-coated metal body and weather-resistant cover ensure long-lasting protection against the elements, while the portable design offers flexible mounting options for secure, keyless access.

Specifications

Manufacturer	Master Lock
Part Number	5400EC
Product Dimensions	3.81 x 8.26 x 15.88 cm; 453.59 g
Item model number	5400D
Size	3 1/2W X 1 5/8D X 4H
Colour	Black
Style	5 Key Capacity, 1 Pack
Finish	Powder Coated
Material	Metal
Pattern	Key Lock Box
Shape	Rectangular
Item Package Quantity	1
Number of Pieces	5
Plug profile	Floor Mount
Special Features	Portable
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;Protective weather cover prevents freezing and jamming;Molded body and vinyl coated shackle prevent scratching
Batteries included?	No
Batteries Required?	No
Item Weight	454 g

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