If connected to a screen, go to Maintenance > System Info > Device Information . In newer interfaces (GUI 4.0), look under the same path to find the SN. Hikvision Serial Number Check Online
Log in to your device's IP address. Navigate to Configuration > System > System Settings to view the "Basic Information" and serial number. Hikvision Serial Number Check Online
Look for a sticker on the bottom or side of the camera, DVR, or NVR. It is marked as "S/N" . If connected to a screen, go to Maintenance
For regional inquiries, the Hik-Partner Pro (HPP) App allows users to scan or enter a serial number to see if a device is "In-warranty" or "Out of warranty". If connected to a screen