What is the effective inside measurements?

Important part is that it is 7/8" deep, a bit smaller than the size of a regular house key laying flat. This is important because when the key inevitably falls of the shallow hook, the key can barely fit in there with the door of the holder closed. If it is off the hook at the top, it must be angled up a bit before you close the compartment. The other dimensions are 2 1/4" wide and 3 7/8" high. These are all the inside dimensions of the key holder compartment.

Is it 100% waterproof?

I can't speak for it being absolutely 100% waterproof (like dropping it in a bucket or body of water I know it's not waterproof in that sense). The keypad cover will keep out rain and snow, which is important in colder climates where if water penetrates the mechanism and it freezes it could render the lockbox inoperable until it's thawed. Where I have mine mounted on a patio door rain does blow against the patio door, the keypad cover keeps water from getting in the keypad so it serves it's purpose.

Does this fit over the doorknob

Yes this lock box is designed to attach to an existing doorknob. The shackle can be locked or unlocked off of a doorknob when the lock box is opened. Thank you, NLS Products.

Do the numbers/letters have to be entered in sequence or can the correct combination be entered randomly?

Each number/letter can only be pushed once, in any sequence in random, will unlock it. As long as you have pressed the clear button each time.

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Push Button Key Lock Box, Indoor Outdoor for 5 Keys 5422EC | Set Your Own Alpha/numeric Combination Lock Box Is Resettable For Realtors and Tenants, Metal Body, Vinyl Coated Shackle

Product ID: 15375248

Details

Brand
Master Lock
Capacity
5 load
Color
Black
Included Components
lock box
Lock Type
Combination
Material
Metal

🔒5-key capacity

🔢Resettable alphanumeric combo

🛡️Weather-resistant metal body

1103 DH

Duties & taxes included

In stock

Sold byAmazon MoroccoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔐 Unlock peace of mind with style and strength!

FITS MOST DOOR KNOBS - Designed to accommodate ball, biscuit, and tulip door knob styles for versatile installation.
WALL MOUNTABLE PORTABLE - Easily mount it outside or take it on the go—security that adapts to your lifestyle.
BUILT TO BRAVE THE ELEMENTS - Durable metal construction with weather cover and vinyl-coated shackle protects against scratches and harsh outdoor conditions.
SECURELY STORE UP TO 5 KEYS - Never worry about lockouts again with ample capacity for multiple keys.
PERSONALIZED PUSH BUTTON SECURITY - Set and reset your own alphanumeric combination for ultimate control and peace of mind.

The Master Lock 5422EC Push Button Key Lock Box offers secure, weather-resistant storage for up to five keys. Featuring a durable metal body, vinyl-coated shackle, and a resettable alphanumeric combination lock, it fits most door knob styles and can be wall-mounted for convenient outdoor use. Ideal for homeowners, realtors, and tenants seeking reliable key security with customizable access.

Specifications

ASIN	B00BOSMLGS
Additional Features	Portable,Resettable
Best Sellers Rank	#17,583 in Office Products ( See Top 100 in Office Products ) #42 in Security Lock Boxes
Brand	Master Lock
Brand Name	Master Lock
Capacity	5 load
Chamber Depth	1 inches
Color	Black
Control Type	Manual
Customer Reviews	4.4 out of 5 stars 3,663 Reviews
Included Components	lock box
Item Dimensions D x W x H	2.07"D x 3.18"W x 6.84"H
Item Highlight	Set Your Own Alpha/numeric Combination Lock Box Is Resettable For Realtors and Tenants, Metal Body, Vinyl Coated Shackle
Item Type Name	Portable Push Button Lock Box
Lock Type	Combination Lock
Manufacturer	Master Lock Industrial
Manufacturer Part Number	5422EC
Manufacturer Warranty Description	Limited Lifetime Warranty
Material	Metal
Material Type	Metal
Model Number	5422EC
Mounting Type	Wall Mount
Number of Items	1
Number of Packs	1
Product Dimensions	2.07"D x 3.18"W x 6.84"H
UPC	071649370526

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