Does it have manual override option meaning it can’t be open from outside?

It has a manual key, so if all else fails you can still open it

Can it be left unlocked for a period of time or is it always locked?

Hello, There is a feature within the app called passage mode. This feature will disable the auto-lock during a schedule and allow the lock to stay unlocked. Thank you for your question.

Can the key lock be rekeyed to match existing house key?

Hello, This lock cannot be rekeyed. Thank you for your question.

Is it compatible with Yale

Hello, This lock is not compatible with Yale. Thank you for your question. Best, Sifely Team cs@sifely.com

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Keyless Entry Fingerprint Digital Smart Lock with Handle & Keypad: Electronic/Electric Lock with Code, App Control Biometric Deadbolt Door Knob for Front, Interior, Exterior & Bedroom Door (Black)

Keyless Entry Fingerprint Digital Smart Lock with Handle & Keypad: Electronic/Electric Lock with Code, App Control Biometric Deadbolt Door Knob for Front, Interior, Exterior & Bedroom Door (Black)

Product ID: 406510204

Details

Brand
Dermum
Item dimensions L x W x H
7 x 3 x 1.2
Lock Type
Biometric Lock
Material
Stainless

📱Real-time app control

🔒5-in-1 keyless entry

🛡️Advanced anti-theft alerts

£100.53

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Description

🔐 Unlock the future of home security—smart, sleek, and always connected.

SEAMLESS 5 IN 1 ACCESS - Fingerprint, code, fob, app, or traditional key—unlock your door your way.
EFFORTLESS INSTALLATION - Fits any door with just a screwdriver—upgrade your security in minutes.
BUILT TO BRAVE THE ELEMENTS - Weather-resistant stainless steel design ensures durability and style outdoors.
VOICE ACTIVATED CONVENIENCE - Hands-free locking and unlocking with Alexa and Google Assistant integration.
SMART SECURITY AT YOUR FINGERTIPS - Receive instant notifications and monitor access logs anytime via the intuitive app.

The Dermum S2 Keyless Entry Smart Lock combines biometric fingerprint scanning, keypad code entry, app control, and voice commands for versatile, secure access. Designed for front, interior, and exterior doors, it features real-time alerts, anti-theft alarms, and weather-resistant stainless steel construction. Perfect for homeowners and property managers seeking modern convenience and peace of mind.

Specifications

ASIN	B09P58VVG3
Additional Features	Auto-Lock, One-Touch Lock, Anti-Peeping Password, Back-Lit Keypad, Fingerprint, Fob Unlock, Passcode Unlock, Touchscreen, Weather Resistant
Best Sellers Rank	#22,234 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #122 in Deadbolts
Brand Name	Dermum
Color	Black
Connectivity Protocol	Wi-Fi
Control Method	App, Remote, Touch, Voice
Controller Type	Amazon Alexa, Android, iOS, Google Assistant, Hand Control, iPadOS
Customer Reviews	4.4 4.4 out of 5 stars (1,862)
Item Dimensions	7 x 3 x 1.2 inches
Item Weight	16 ounces
Lock Type	Biometric, Combination Lock, Deadbolt, Keypad
Manufacturer	Dermum
Manufacturer Part Number	Dermum S2 Model
Material Type	Stainless Steel
Model Name	Dermum S2 Model
Model Number	Dermum S2 Model
Number of Items	1
Number of Pieces	16
Recommended Uses For Product	Door
Shape	Oval
Style Name	Bluetooth Version
UPC	745808812522
Unit Count	1 Count

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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.

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£100.53

Duties & taxes included

In stock

Sold byAmazon UKDelivered 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 UK.

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TrustScore 4.5 | 7,300+ reviews

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