TTLock Bluetooth Smart RIM Waterproof Lock with Double Fingerprint.

TTLock Smart Rim Gate Door Lock Intelligent Fingerprint Digital Smart Rim Lock. Smart rim lock is made of aluminum, with access by TTLock App, fingerprint, passcode, Mifare card, and mechanical key, suitable for multiple doors, such as glass door, outside door, metal door, wooden door, and so on. Updating your locks in just a few minutes.

Double-sided independent system：
For safety, the front panel is a different system than the rear panel. Their user information cannot be shared. If you need to
open the front panel and the rear panel at the same time, you need to record user information separately.