: Log into the camera’s local IP address via a web browser. The serial number is usually under System , About , or Device Info .
Hardware: Are you viewing on a dedicated PC, a tablet, or a smartphone?
Use PayPal or a credit card on the official site. After payment, you will receive a (often called an activation code or registration key) via email.
In the context of IP camera software, "serial number" can refer to two distinct things: the software's registration code or the hardware's unique identifier. Software License Keys