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.

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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 kg
Material
Brass Plastic

🔄Rotating privacy cover

🔒Solid brass heavy-duty build

👁️220° ultra-wide viewing angle

102.74 DT

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Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

👁️ Unlock the full view, lock down your privacy.

CRYSTAL CLEAR OPTICS - Large 17mm glass lens delivers sharp, bright images—no cheap plastic distortion here.
PANORAMIC 220 VISION - See every detail from head to toe with an ultra-wide field of view that leaves no blind spots.
FITS THICK DOORS PERFECTLY - Designed for doors 1.65" to 2.16" thick, ideal for modern homes, offices, and hotels.
PREMIUM SOLID BRASS CONSTRUCTION - Durable, corrosion-resistant brass ensures long-lasting security and a sleek, professional look.
HEAVY DUTY ROTATING PRIVACY COVER - Protect your privacy with a smooth, tactile cover that blocks reverse peephole spying.

The Sumnacon Large Door Viewer offers a professional-grade 220-degree viewing angle through a large 17mm glass lens, housed in solid brass for durability. Designed for doors between 1.65" and 2.16" thick, it features a heavy-duty rotating privacy cover to prevent reverse peephole spying. Perfect for home, office, or hotel security, it combines crystal-clear optics with robust construction to elevate your door monitoring experience.

Specifications

ASIN	B07TVX5MHB
Best Sellers Rank	#60,049 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #8 in Door Viewers
Brand Name	Sumnacon
Color	Black
Customer Reviews	4.5 4.5 out of 5 stars (2,078)
Exterior Finish	Black, Brass
Item Type Name	Door Viewer
Item Weight	0.11 kg
Manufacturer	Sumnacon
Manufacturer Part Number	ULSMC00392
Material Type	Brass, Plastic
Model Number	ULSMC00392
Number of Items	1
Number of Pieces	1
Recommended Uses For Product	home security, office security, hotel security, monitoring front door activity
Size	28mm
Unit Count	1 Count

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2 months ago

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102.74 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered 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 Tunisia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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