Best National Door Viewers in 2026

HD Optical Glass Lens Offers 220-Degree Crystal Clear Panoramic View-The HD optical glass lens provides a 220-degree sharp and crystal clear panoramic view. It covers the area from the porch ceiling to the doormat, extending to both sides of the doorway across the street.You can spot packages without opening the door and easily see anyone present outside from head to toe. There is no blind spot where a person might lurk, offering you and your family top-level safeguard and security.

Heavy Duty Privacy Cover Provides Top Privacy and Security-With the cover in place, no one from outside can see through the viewer into your home even with the reverse peephole. No light will beam through the hole to disturb you anymore with this nice touch. You can open and close the heavy duty back cover flexibly and smoothly. It allows you to identify visitors from a locked door, offering the highest level of privacy for your protection and safety.

Hassle-free Installation -It is a breeze to install this door viewer with detailed instruction. Suitable for 1-3/8" to 2-1/6" thick doors, simply drill a small pilot hole as straight as possible, then continue to drill a 9/16" diameter hole on both sides. Insert the viewer into the hole, then screw the two portions together and tighten with the slot on the back. Good Snug fit with wide flanges on both sides to cover drilling flaws.

HD Optical Glass Lens Offers 220-Degree Crystal Clear Panoramic View-The HD optical glass lens provides a 220-degree sharp and crystal clear panoramic view. It covers the area from the porch ceiling to the doormat, extending to both sides of the doorway across the street.You can spot packages without opening the door and easily see anyone present outside from head to toe. There is no blind spot where a person might lurk, offering you and your family top-level safeguard and security.

Heavy Duty Privacy Cover Provides Top Privacy and Security-With the cover in place, no one from outside can see through the viewer into your home even with the reverse peephole. No light will beam through the hole to disturb you anymore with this nice touch. You can open and close the heavy duty back cover flexibly and smoothly. It allows you to identify visitors from a locked door, offering the highest level of privacy for your protection and safety.

Hassle-free Installation -It is a breeze to install this door viewer with detailed instruction. Suitable for 1-3/8" to 2-1/6" thick doors, simply drill a small pilot hole as straight as possible, then continue to drill a 9/16" diameter hole on both sides. Insert the viewer into the hole, then screw the two portions together and tighten with the slot on the back. Good Snug fit with wide flanges on both sides to cover drilling flaws.

Authorized Replacement for Stanley Hardware Stock #N330-779

Used to allow a user to identify visitors from the security of a locked door

Fits doors 1-3/8 inch to 2 inches thick

▲LARGER ANGLE & CLEAR VISION - The HD optical glass lens provides a 220-degree sharp and crystal clear panoramic view. It covers the area from the porch ceiling to the doormat, extending to both sides of the doorway across the street.You can spot packages without opening the door and easily see anyone present outside from head to toe. There is no blind spot where a person might lurk, offering you and your family top-level safeguard and security.

▲SOLID BRASS CONSTRUCTED - Built to Last Construction-Constructed from durable solid brass, the door viewer gives a lifetime of durability. It comes in multiple finishes with sleek contemporary design to match your existing hardware and decor, blending in perfectly with various doors. A must safety complement for home, office, hotel and anywhere you need to view who is outside your door before opening.

▲MULTI-APPLICATION - This door viewer is perfect for 1-3/8" to 2-1/6" thick doors. It allows you to identify visitors from a locked door, offering the highest level of privacy for your protection and safety. It's an ideal choice for the home, office, hotels, and front doors.

LARGE ANGLE: 220 Degrees crystal clear clarity viewing angle

FIT SIZE: Fits doors 1-11/16 to 2-3/16 inch thick/(42mm- 54mm)

COVER: Comes with metal cover lid offering extra privacy and security

▲WIDER & LARGER VIEW ANGLE-The HD optical glass lens provides a 220-degree sharp and crystal clear panoramic view. It covers the area from the porch ceiling to the doormat, extending to both sides of the doorway across the street.You can spot packages without opening the door and easily see anyone present outside from head to toe. There is no blind spot where a person might lurk, offering you and your family top-level safeguard and security.

▲PRIVACY PROTECTION-Heavy Duty Privacy Cover Provides Top Privacy and Security-With the cover in place, no one from outside can see through the viewer into your home even with the reverse peephole. No light will beam through the hole to disturb you anymore with this nice touch. You can open and close the heavy duty back cover flexibly and smoothly. It allows you to identify visitors from a locked door, offering the highest level of privacy for your protection and safety.

▲HASSLE-FREE INSTALLATION-It is a breeze to install this door viewer with detailed instruction. Suitable for 1-9/16" to 2-1/6" thick doors, simply drill a small pilot hole as straight as possible, then continue to drill a 1.1" diameter hole on both sides. Insert the viewer into the hole, then screw the two portions together and tighten with the slot on the back. Good Snug fit with wide flanges on both sides to cover drilling flaws.

【ULTRA HD LENS】High quality optical lens with 220-degree visual angel offers a crystal clear view with an extraordinary wide angle coverage. You can easily view the entire surrounding area from the top of the head to the feet of someone standing outside. It offers the highest quality security for you and your family.

【INCREASES PRIVACY】The design of whorl is anti-destruction, anti-drag, and thickening cover is more sturdy and an-peeping,increases your privacy. With the cover in place, visitors outside cannot see through the viewer into your home,Used to allow a user to identify visitors from the security of a locked door, offering the highest level of privacy for your protection and safety

【INSTALL EASILY】The door viewer with durable Solid Brass metal with super simple installation. Suitable for 1-3/8" to 2-1/6" thick doors, simply drill a suitably positioned 5/8" (0.63'')diameter hole, insert the viewer into the hole then screw the two sides together and tighten by hand.After installed it, you could see a lot of the area.

Heavy Duty Solid Brass Housing and Quality Lens

Offers 220 Degree Wide Angle Coverage

Adjustable Viewer Fits doors 1-3/8 inch to 2-1/8 inch thick

PROVIDES A WIDE VIEW OF VISITORS: The 180 degree lens angle on our security peep holes for door will provide you with a wide view of any visitor while you're behind a locked door.

DESIGNED TO FIT MOST DOORS: This door viewer is perfect for doors 1-3/8 to 2 inches thick. It's an ideal choice for the home, office, hotels, and front doors.

SIMPLE, DIY INSTALLATION: You'll have this door scope installed in no time. It requires a 9/16 inch hole for proper installation.

Door Scope DS2000 Door Viewer - Aluminum x Silver Finish, to serve you for a long time

Viewable from up to 7 feet inside your home (wide angle viewer)

Accurate and reliable identification of all visitors

Used to fit a 1/2 in. diameter hole

Provides a 180 degree viewing area

Glass and plastic lens

Solid brass 9/16 in. diameter housing

Fits 1-3/8 in. to 2-3/8 in. thick wood or metal doors

UL listed glass lens

HD Lens: HD optical glass lens offers 200 degree crystal clear view and super wide angle coverage. You can view the entire surrounding area from the top of the head to the feet of someone standing outside. The door peephole offers the highest quality security for you and your family.

Anti-Peep Cover: The peephole has a 360-degree rotating privacy cover design. Closing the cover of the peep hole, visitors outside cannot see through the viewer into your home, offering the highest level of privacy for your protection and safety.

High-Quality Materials: Our peephole for the front door is constructed from high-quality Zinc alloy materials, which are rustproof and sturdy, ensuring quality and durability.

【Ultra HD Lens】The lens is made of high-definition optical glass, with high definition, large viewing angle, anti-theft field of view up to 200 degrees, bringing you a clear visual experience and a wider-angle field of view.

【Door Thickness Range】Adjustable Length: 1.57"-2.95"(40-75mm), fits doors 1.57"-2.56" (40-65mm) thick. You just need to drill hole, put the door viewer in the hole, then tighten both sides and you are done.

【Guard Your Privacy】The threaded design is anti-destructive and anti-pulling. When you cover the anti-peep back cover, people outside the door cannot see the indoor situation through the cat's eye, thus protecting the privacy and safety of your family.

Every repair part is color-coded

Includes complete, easy-to-understand instructions

Country of origin: US

Made with durable, zinc die cast body

UL listed glass lens angle

Oil Rubbed Bronze finish

Material: Made of brass, sturdy and durable. Heavy duty solid brass housing and premium lens.

Adjustable viewer fits 1-3/8inch to 2-1/8inch thick doors Easy to install - 9/16" diameter hole.

Wide range of applications: gates.

Used to allow a user to identify visitors from the security of a locked door

Glass lens offers 160 degrees lens angle for wide viewing

Zinc die cast body

Pro Series 9442 Series UL Fire Rated Door Viewer with UL Listed glass lens.

Used to allow a user to identify visitors from the security of a locked door.

Offers 180 degree wider angle lens for clearer viewing

Used to allow a user to identify visitors with a 160 degree wide angle glass lens from the security of a locked door.

Zinc die cast body requires a 9/16 inch hole and can be used in doors that measure 1-3/8 to 2 inch thick

Interior width is 11/16 inch