Smart Biometric Fingerprint Lock with Tuya App, Zinc Alloy Keyless Security Door Handle for Home

Our Smart Lock comes in three versions: Tuya and TTlock, Bluetooth, and WIFI Tuya and TTlock versions can remotely unlock while the Bluetooth version only offers one-time-password remote unlocking. It works perfectly with standard door thickness of 35-60mm and can be customized for other sizes by contacting customer service. The lock is waterproof and works well under rainy conditions. You will need 4 AAA alkaline batteries, which are sold separately, to power it up. Low battery alert feature ensures you never have to worry about running out of power suddenly. It supports mortise sizes of 60/70 or 5072. The Bluetooth version can remotely unlock using temporary passwords, while the WIFI version allows direct remote unlocking through the app.