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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Description

🔓 Unlock the future of home security—smart, sleek, and totally keyless.

EFFORTLESS DIY SETUP - No locksmith needed—install smart security in minutes with just a screwdriver.
SEAMLESS REMOTE ACCESS - Grant or revoke entry anytime via app; perfect for Airbnb hosts and busy professionals.
PEACE OF MIND GUARANTEED - Free app, lifetime support, 1-year warranty & 30-day money-back promise.
ULTIMATE KEYLESS FREEDOM - Fingerprint, passcode, fob, smartphone & mechanical key unlock—ditch your keys forever.
VOICE ACTIVATED CONVENIENCE - Works with Alexa, Google Assistant & Apple Watch for hands-free door control.

The Dermum Keyless Entry Door Lock is a modern, zinc-built smart lock featuring 5-in-1 unlocking methods including fingerprint, passcode, fob, smartphone app, and mechanical key. Designed for easy DIY installation without drilling, it supports Wi-Fi connectivity for remote control and real-time access monitoring. Compatible with Alexa, Google Assistant, and Apple Watch, it offers versatile, secure, and convenient access management ideal for homeowners and rental hosts alike.

Specifications

Brand	Dermum
Special Feature	easy to install
Lock Type	smart locks, keyless entry door lock with handle,bedroom door lock,smart locks for front door,smart door knob,electric door locks,entry door lock, key fob door lock,sifely keyless entry door lock,smart key lock
Item dimensions L x W x H	17.8 x 7.6 x 2.8 Centimeters
Material	Zinc
Recommended Uses For Product	Home.the
Style	Modern
Colour	Silver
Number of Pieces	16
Finish Type	Glossy
Included Components	Back Plate, Bolt Assembly, Face Plate, Rubber Gasket, ‎Mounting Plate
Controller Type	Amazon Alexa
Shape	Rectangular
Item Weight	1.65 kg
Control Method	App, Remote
Connectivity Protocol	Wi-Fi
UPC	745808798109
Model Name	Dermum-S1-silver
Manufacturer	Dermum
Item model number	Dermum-S1
Product Dimensions	17.78 x 7.62 x 2.84 cm; 1.65 kg
ASIN	B09P81M2YC

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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.

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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.

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