3-IN-1 SMART DOOR LOCK

3-IN-1 SMART DOOR LOCK

black / United States
$54.99 USD
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3-IN-1 SMART DOOR LOCK

3-IN-1 SMART DOOR LOCK

$54.99 USD
  • Opens with your fingerprint in under a second
  • Stores up to 20 fingerprints and 20 PIN codes
  • One-time guest codes for cleaners, guests, or Airbnb turnover
  • Physical backup key included
  • Type-C rechargeable with low-battery alerts
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Tracked shipping Tracking emailed within 24 hours
14-day returns Doesn't fit? Send it back
Real support support@lock-nest.com — replies within hours

Common questions

Will this fit?

This fits standard US doors with a 6068 mortise, a backset of 2.36" to 2.75", and a door thickness of 1.38" to 2.36". Measure your existing lock before ordering — the backset is the distance from the door edge to the center of the knob hole. If your door has a different mortise cut, this will not fit without modification.

What is this built for?

Bedrooms · Home offices · Apartments · Rentals · Interior doors.

How does it charge?

It charges over USB and plugs into any standard charger or power bank. Your fingerprints and codes are stored on the lock itself, so nothing is lost when it powers down.

Can more than one person open it?

Yes. It stores multiple fingerprints, so family, roommates, or crew can all get in without you handing out a key or sharing a code.

How fast does it ship?

Orders are processed within 24 hours, with tracking emailed once your package leaves the warehouse. Delivery typically takes 6–9 business days.

One touch. You're in.

Bedroom doors, home offices, and rental turnovers all have the same problem — you're managing keys for a door inside your own house. Someone always loses one. Someone always needs one at the wrong time.

This replaces the knob you already have. Your fingerprint opens it in under a second. Everyone in the house gets their own print, guests get a code that expires, and there's a real key in the box for the day something goes sideways.

Four Ways In

Fingerprint

Up to 20 prints. Everyone in the household gets their own, no keys to hand out.

PIN code

Up to 20 codes, plus one-time guest codes that stop working after a single use.

Tuya app

Unlock, add users, and see entry history from your phone through Tuya or Smart Life.

Physical key

Mechanical keys included. Type-C emergency power if the battery ever runs flat.

Two Modes

Passage mode keeps the door unlocked for shared spaces you're in and out of all day.

Anti-lock mode restricts entry to the admin only — for a bedroom, home office, or any room that stays yours.

Measure Before You Order

This fits standard US interior doors with a 6068 mortise, a 2.36"–2.75" backset, and a door thickness between 1.38" and 2.36". The handle is reversible, so left- and right-hand doors both work.

If your door already has a standard knob cut, this swaps in with a screwdriver. If it doesn't, you'll need the mortise cut first. Check yours before you order — we'd rather you measure now than send it back.

Power

Rechargeable battery with a low-battery alert well before it matters. Charges over Type-C without taking the lock off the door, and the same port gives you emergency power if it ever does go flat.

In the box

Everything you need, nothing you don't.

01 Fingerprint door knob Reversible for left or right doors
02 Mechanical backup keys For emergency entry
03 Type-C charging cable Recharges without removing the lock
04 Mounting hardware and manual Everything needed for install

Specifications

The numbers, before you buy.

Unlock methods Fingerprint, PIN code, Tuya app, physical key
Fingerprints stored Up to 20
PIN codes stored Up to 20, plus one-time guest codes
Material Aluminum alloy
Fits door thickness 1.38" – 2.36" / 35 – 60 mm
Backset 2.36" – 2.75" (standard US)
Mortise 6068
Handle direction Reversible, left or right
Power Rechargeable battery, Type-C charging
App Tuya / Smart Life, works with Alexa and Google Assistant
Certification FCC, RoHS
Delivery 4–8 business days from our US warehouse

Measure before you order. Compare the shackle opening above to the hole on your locker or latch.

Why We Built This

LockNest started with the same problem everyone has — keys you lose, combinations you forget, and locks that feel like a suggestion instead of security.

So we built a store around locks that open when you touch them. Simple products, honest specs, tracked shipping, and a real inbox if something goes wrong.

Everything you need to know is on this page — the measurements are listed above so you can check the fit before you order.

The LockNest Team

No keys. No codes. No compromises.