what size drill bit will I need?

I used a millimeter step drill bit with a hex shank in my electric drill. This was what made it possible to install a viewer at a low cost and have one that was large enough I can actually see through!

can use with Metal Door 1.8mm ?

The specifications state what door thickness this can be used on. If you meant 18cm, that is a little over 3" thick. Check the specs. 1.8mm is very thin.

Do i need another piece to go with device. And how can i just use this piece to connect to my phone. This is my first time using this an need some ad

First, this is not for your phone, It is a door viewer that you install in a house door to view who is at your door. No other parts needed for that intended purpose.

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Sumnacon Large Door Viewer 220-degree with Heavy Duty Rotating Privacy Cover, Solid Brass Security Peephole for 1.65" to 2.16" Doors for Home Office Hotel, Black

Sumnacon Large Door Viewer 220-degree with Heavy Duty Rotating Privacy Cover, Solid Brass Security Peephole for 1.65" to 2.16" Doors for Home Office Hotel, Black

Product ID: 154957231

Details

Brand
Sumnacon
Color
Black
Exterior Finish
Black Brass
Item Weight
0.11 Kilograms
Material
Brass Plastic

🔍220° ultra-wide viewing angle

🔧Fits 1.65"–2.16" thick doors

🛡️Solid brass heavy-duty build

$29.89

Duties & taxes included

In stock

Sold byAmazon USADelivered 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 USA.

Secure transaction

Description

🔒 See More, Worry Less — Your Door’s Ultimate Watchdog

VERSATILE TRUSTED - Ideal for home, office, or hotel use—join thousands securing their spaces with a top-rated, professional-grade door viewer.
EFFORTLESS INSTALLATION - Screw-in design fits doors 1.65" to 2.16" thick with a large 1.1" hole for superior light transmission and clarity.
PANORAMIC SECURITY VISION - Experience a crystal-clear 220° field of view that captures every detail from head to toe.
PREMIUM SOLID BRASS CONSTRUCTION - Durable, corrosion-resistant brass ensures long-lasting protection and a sleek black finish for modern aesthetics.
HEAVY DUTY ROTATING PRIVACY COVER - Keep prying eyes out with a smooth, robust privacy shield that thwarts reverse peephole spying.

The Sumnacon Large Door Viewer offers a premium 220-degree viewing angle through a large 0.675" glass lens, delivering unmatched clarity and coverage for doors 1.65" to 2.16" thick. Crafted from solid brass with a sleek black finish, it features a heavy-duty rotating privacy cover to prevent reverse peephole spying. Easy to install and perfect for home, office, or hotel security, this door viewer combines durability, style, and advanced functionality to keep you safe and informed.

Specifications

ASIN	B07TVX5MHB
Best Sellers Rank	#79,841 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #11 in Door Viewers
Brand	Sumnacon
Brand Name	Sumnacon
Color	Black
Customer Reviews	4.5 out of 5 stars 2,074 Reviews
Exterior Finish	Black, Brass
Included Components	Door Viewer
Installation Type	Screw-In
Item Type Name	Door Viewer
Item Weight	0.11 Kilograms
Manufacturer	Sumnacon
Manufacturer Part Number	ULSMC00392
Material	Brass, Plastic
Material Type	Brass, Plastic
Model Number	ULSMC00392
Number of Pieces	1
Recommended Uses For Product	home security, office security, hotel security, monitoring front door activity
Size	28mm
Unit Count	1.0 Count

Common Questions

Are the products genuine and authentic?+

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.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

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.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Pooja R.

The customer service exceeded my expectations. Perfect for buying products you can't find elsewhere.

1 week ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

$29.89

Duties & taxes included

In stock

Sold byAmazon USADelivered 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 USA.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ravi S.

I loved the variety of products available. Will definitely shop again.

2 months ago

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

View all Trustpilot reviews