YFK Manuals & User Guides

YFK is a manufacturer of smart home electronics and security products designed to enhance convenience and safety in modern households. Their product lineup includes advanced keyless entry systems such as the CS9-01 Smart Fingerprint Door Handle Lock, which features multiple unlocking methods including biometric fingerprint scanning, PIN entry, RFID cards, physical keys, and mobile app integration.

Beyond smart locks, YFK also develops smart environmental sensors and controllers, including water leakage sensors and WiFi Smart IR remote controls. By leveraging popular smart home ecosystems like Tuya and Zigbee, YFK provides users with seamless integration, automated alerts, and remote monitoring capabilities for their smart home networks.

• How do I connect my YFK Smart Lock to the app?

  Download the Tuya Smart App or Smart Life App, turn on your smartphone's Bluetooth and Location services, click 'Add Device' in the main interface of the app, and follow the on-screen prompts to pair your lock.

• What unlocking methods are available on the YFK CS9-01 Smart Lock?

  The YFK CS9-01 supports 5-in-1 keyless entry methods: fingerprint recognition, numerical keypad password entry, RFID/IC cards, traditional physical key unlock, and remote smartphone app access.

• What type of batteries does the YFK Smart Handle Lock require?

  The smart lock requires 4 high-quality AAA (LR03) alkaline batteries. There is also a 5V Type-C port on the lock that can be used to supply emergency power if the batteries die completely, but this port is not for charging.

• How do I set up the YFK Water Leakage Sensor?

  This sensor operates via a Zigbee gateway. In the Tuya Smart app, select your connected Zigbee gateway, tap 'Add subdevice', and hold the sensor's reset button for 5 seconds until the LED flashes rapidly to initiate the connection.