Does it work without the Bluetooth gateway?

Yes, but only locally. Fingerprint, mechanical key, offline one-time code and guest codes work at the door. App passcodes, remote lock and unlock, alerts and Alexa or Google Home control need the gateway plugged in.

It is made for doors about 54mm thick with a 60mm or 70mm backset. Measure your door thickness and backset before buying; other sizes need a different lock.

Does it work with Apple HomeKit or SmartThings?

No. It works with Alexa and Google Home through the gateway. HomeKit and SmartThings are not supported.

What happens when the batteries run low?

The app sends a low-battery alert, and the lock keeps working for about 80 more uses. A USB-C port lets you power it temporarily if the batteries die.

How many fingerprints and codes can it store?

Up to 100 fingerprints and codes combined, managed in the Treatlife app. That covers a family plus regular guests.

The lock, a Bluetooth gateway, three backup keys, four AA batteries, a reset pin and all mounting accessories.

Treatlife Smart WiFi Door Lock Price History: Lowest $76.03

Q: Where is the Smart WiFi Door Lock with Bluetooth Gateway cheapest?

At ShopSimon, for $76.03, as of our latest check.

From ShopSimon

Easy DIY installation in minutes with just a screwdriver—no wiring or professional help needed
Fits most standard doors (thickness 54mm, backsets 60mm/70mm)
5 smart unlocking methods: fingerprint, app passcode, mechanical key, offline one-time code, temporary guest code
Manage up to 100 fingerprints/codes in the Treatlife App; virtual password prevents peeking
App control and real-time alerts: remotely lock/unlock, view access logs, get failed-attempt and low-battery alerts
Works with Alexa or Google Home via the Bluetooth gateway for voice control and automation

Sizing: Fits most standard doors with thickness 54mm and backsets 60mm/70mm
Guarantee: Includes 18-month warranty and reliable customer support
Shipping: Usually ships within 1-2 business days
In the box: Bluetooth gateway, 3 backup keys, 4 AA batteries, Reset pin, All mounting accessories

About the Smart WiFi Door Lock with Bluetooth Gateway

This smart door lock opens with a fingerprint, an app passcode, a mechanical key, an offline one-time code, or a temporary guest code. The app passcode method requires the included Bluetooth gateway. A virtual password feature prevents others from peeking at the code, and the lock supports over 100,000 operations.

The Treatlife App lets you lock and unlock the door remotely and view access logs. It sends alerts for failed attempts and low battery. The app manages up to 100 fingerprints and codes. Through the Bluetooth gateway, the lock works with Alexa or Google Home for voice control, and it can be combined with other Treatlife devices to run routines, such as unlocking the door and triggering lights or welcome scenes.

Installation takes a screwdriver only, with no wiring. Auto-lock secures the door after a set time. After 10 failed PIN attempts, the lock shuts out new attempts for 3 minutes. When the low-battery alert appears, 80 more uses remain, and a USB-C port provides temporary power.

Unlocking methods: Fingerprint, app passcode (gateway required), mechanical key, offline one-time code, temporary guest code
Capacity: Up to 100 fingerprints and codes
Durability: Supports over 100,000 operations
Door thickness: 54 mm
Backset: 60 mm or 70 mm
Connectivity: WiFi, Bluetooth gateway
Compatibility: Alexa, Google Home, Treatlife devices; not compatible with HomeKit or SmartThings
App: Treatlife App
Alerts: Failed attempts, low battery
Lockout: 3 minutes after 10 failed PIN attempts
Low battery: 80 more uses after the alert
Emergency power: USB-C port for temporary charging
Power: 4 AA batteries
Installation: Screwdriver only, no wiring
Warranty: 18 months
In the box: Bluetooth gateway, 3 backup keys, 4 AA batteries, reset pin, all mounting accessories