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)

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 & notifications

🔒5-in-1 keyless entry modes

🛡️Auto-lock & anti-theft alarms

4545328₫

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In stock

Sold byAmazon VietnamDelivered 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 Vietnam.

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Description

🔐 Elevate your door game—secure, smart, and effortlessly stylish.

SEAMLESS VOICE INTEGRATION - Hands-free locking/unlocking with Alexa and Google Assistant for next-level smart home synergy.
BUILT TO BRAVE THE ELEMENTS - Weather-resistant zinc construction ensures durability for front, garage, or interior doors.
ULTIMATE KEYLESS CONVENIENCE - Unlock with fingerprint, code, fob, app, or traditional key—flexibility that fits your lifestyle.
EFFORTLESS INSTALLATION SHARING - Set up in minutes with just a screwdriver and share secure eKeys with guests or tenants instantly.
SMART SECURITY AT YOUR FINGERTIPS - Receive instant access alerts and monitor entry logs remotely via the intuitive app.

The Dermum S1 Keyless Entry Smart Lock combines biometric fingerprint access, keypad, app control, and voice commands into a sleek, weather-resistant zinc design. Perfect for homeowners and property managers, it offers 5-in-1 unlocking options, real-time notifications, anti-theft alarms, and seamless integration with Alexa and Google Assistant, delivering cutting-edge security and convenience for any door.

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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4545328₫

Duties & taxes included

In stock

Sold byAmazon VietnamDelivered 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 Vietnam.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

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