Knob Smart Door Lock Fingerprint Mobile App

Safety Tips

• Never make a payment or provide personal information until you have verified the seller and the electronic device in person.
• Be cautious of sellers asking for advance payments before you meet and inspect the device.
• Always test the electronic device to ensure it is fully functional before making a purchase learn about device faults on this page.
• Make sure to meet in a safe, public place when dealing with sellers.