Smart door knob Replacing mechanical locks Fingerprint locks can better replace mechanical locks. If you don't want children or others to enter at will, they will be your good helper, protecting privacy while avoiding embarrassment; More intelligent app management If there is no app application, user management is a headache because it is difficult to remember all users, and it is also difficult to know when they will unlock and enter, or cancel some user permissions according to the situation; Fingerprint lock and application programs effectively solve this problem; One app can manage multiple Smart lock When you change most of the locks in the whole house into Smart lock, you can use one app to add all locks, so you don't need to use different keys. When a door needs to be normally opened, you can open the passage mode to change the Smart lock into a mechanical lock. Tips The fingerprint information is stored locally in the lock and will not be uploaded to the app; When the lock is connected to the app, the unlock record will be synchronized to the app; When entering illegally, the app will also provide corresponding prompts (non instant prompts); After the app creates an account, other accounts will not be able to connect to the lock; The app account can be logged in on other phones to achieve lock control. FQA: Q1: What type of battery is used? A: Please use AA Alkaline battery, and make sure that the four batteries are brand new. Other batteries or some old batteries will cause voltage instability, and the lock will not work properly. If the fingerprint indicator does not light up after the battery is installed, it is a battery problem; Q2: Can I find the lock when opening the app when the lock is not powered on? A: Obviously not, please ensure that the lock is in a powered on state, and then download the tuya app from the mobile app. Open the Bluetooth and app on the phone, press the fingerprint, and the app will recognize the device; Q3: Is the product second-hand? A: All products are fully inspected when leaving the factory, and they are all new products; If you receive second-hand goods, please reject them directly; The occurrence of this situation is not our intention; Q4: unlocking with the fingerprint may take several attempts before succeeding? A: There is a process for guiding the entry of fingerprints in the app, which requires 5-6 collection times to more effectively help you unlock. Please note that all fingerprint information is stored in the internal memory of the lock and not in the app; Q5: Why can't we provide additional mechanical keys? A: When the lock leave the factory, we are equipped with 2 mechanical keys, which correspond to the lock cylinder one by one. For safety reasons, the key to each lock is unique, and we cannot keep the corresponding key; Q6: extra copies of the mechanical key cannot be made in US? A: Mechanical keys are not high-tech products. If you need to configure more, you can find the corresponding local service company to configure them.