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.

Does this operate at all if the wifi is down? i understand the app won't work in this situation but what about preprogrammed codes and fingerprints?

Hello, In this case, the lock can still be controlled by the app while in bluetooth range. All the pre-programmed codes and settings will still work. Thank you for your question.

Can you have the handle facing horizontally towards the left side?

Hello, The handle is reversible for both left and right handed doors. Thank you for your question.

What functionality do you lose when it gets too cold? In Minnesota it can get down to -20 which is well below the functional range.

Hello, All electronic may be lost in those temperatures as with most electronics. It is recommended that you carry the physical key in those instances. Thank you for your question.

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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 (Silver)

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 (Silver)

Product ID: 402027502

Details

Brand
Dermum
Item dimensions L x W x H
7 x 3 x 1.12
Lock Type
Biometric Lock
Material
Zinc

📱Real-time app control & logs

🔒5-in-1 keyless access

🛡️Auto-lock & anti-theft alerts

Bs.3394

Duties & taxes included

In stock

Sold byAmazon BoliviaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔐 Upgrade to the future of home security—because your door deserves smart protection.

SEAMLESS 5 IN 1 ACCESS - Fingerprint, code, fob, app, or physical key—unlock your door your way, anytime.
BUILT FOR PEACE OF MIND - Auto-lock, privacy mode, and anti-theft alarms keep your home secure 24/7.
VOICE ACTIVATED CONVENIENCE - Hands-free locking/unlocking with Alexa & Google Assistant integration (gateway required).
SMART SECURITY AT YOUR FINGERTIPS - Receive instant notifications and monitor access logs remotely via the intuitive app.
EFFORTLESS INSTALLATION COMPATIBILITY - Fits most doors with just a screwdriver—no professional help needed.

The Dermum S1 Keyless Entry Smart Lock combines biometric fingerprint scanning, keypad code entry, app control, and physical keys into one sleek, weather-resistant zinc deadbolt. Designed for front, interior, and exterior doors, it offers real-time access monitoring, auto-locking, and anti-theft alerts. Compatible with Alexa and Google Assistant for voice commands, this modern lock installs easily and supports multiple user profiles with customizable access schedules—perfect for homeowners and property managers seeking next-level convenience and security.

Specifications

ASIN	B09P81M2YC
Additional Features	Auto-Lock, One-Touch Lock, Anti-Peeping Password, Back-Lit Keypad, Fingerprint, Fob Unlock, Passcode Unlock, Touchscreen, Weather Resistant
Best Sellers Rank	#21,892 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #117 in Deadbolts
Brand	Dermum
Brand Name	Dermum
Color	Silver
Connectivity Protocol	Wi-Fi
Control Method	App, Remote, Touch, Voice
Controller Type	Amazon Alexa, Android, Google Assistant, iOS, iPadOS
Customer Reviews	4.4 out of 5 stars 1,880 Reviews
Item Dimensions	7 x 3 x 1.12 inches
Item Weight	3.6 pounds
Item dimensions L x W x H	7 x 3 x 1.12 inches
Lock Type	Biometric, Combination Lock , Deadbolt, Keypad
Manufacturer	Dermum
Manufacturer Part Number	Dermum S1
Material	Zinc
Material Type	Zinc
Model Name	Dermum S Smart Lock
Model Number	Dermum-S1
Number of Items	1
Number of Packs	1
Number of Pieces	16
Special Feature	Auto-Lock, One-Touch Lock, Anti-Peeping Password, Back-Lit Keypad, Fingerprint, Fob Unlock, Passcode Unlock, Touchscreen, Weather Resistant Special Feature Auto-Lock, One-Touch Lock, Anti-Peeping Password, Back-Lit Keypad, Fingerprint, Fob Unlock, Passcode Unlock, Touchscreen, Weather Resistant See more
Style	Modern
Style Name	Modern
UPC	745808798109
Unit Count	1 Count

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