Finding a device's unique identifier often becomes a critical step when setting up a video surveillance system or during warranty service. Serial number The SN (Serial Number) acts as a key that allows you to link the device to the manufacturer's cloud service, which is especially important for modern P2P cameras that don't require complex port forwarding configurations. Without this code, it's impossible to activate the device in the app, register it on the support portal, or verify the authenticity of the purchased device in the official registry.
Security system owners are faced with the need to find this code in a variety of situations: from a simple loss of packaging to a factory reset when the old configuration is lost. IP cameras Different brands may store this information in different places: on physical stickers, in software, in the web interface, or even in the home router's logs. Knowing where to look for this information will save you time and frustration during the initial installation of your equipment.
There are several proven identification methods, each with its own nuances depending on the device model and manufacturer. In this article, we'll cover all available methods in detail, from simple visual inspection to specialized network scanners. You'll learn how to find Serial Number even in cases where access to the physical shell of the camera is limited.
Visual inspection of the device body and packaging
The most obvious and quick way to find the identifier is a physical inspection of the device itself. Electronics manufacturers are required to label their products according to international standards, so factory label A sticker is typically present on every gadget. It's most often located on the bottom of the device, on the end, or under the rotating mechanism on dome-type models. In addition to a barcode and QR code, this sticker always contains an alphanumeric code labeled "S/N," "SN," or "Serial No."
However, in the case of street Wi-Fi cameras The situation may be complicated by operating conditions. Prolonged exposure to UV light, moisture, and temperature fluctuations can cause the sticker's ink to fade and the paper to peel off. If the information on the case has become illegible, don't despair. Factory packaging The cardboard box also contains a duplicate label with a full set of data, including the serial number, MAC address, and production date. Keeping the box is a good habit for any equipment owner.
If the camera is already mounted at a height or in a hard-to-reach location and removing it for inspection is difficult, use additional sources. Often, the brief instructions or warranty card included in the kit also contain a unique serial number for the specific camera. Carefully check all paper inserts; sometimes this information is printed in small print on the back of the warranty certificate.
- 🔍 Look for the sticker on the bottom edge of the case or on the swivel base.
- 📦 Check the saved box and warranty card for a duplicate label.
- 📝 Carefully inspect the quick start guide, sometimes the SN is listed there.
⚠️ Attention: If the camera is mounted high up outdoors, don't attempt to reach it without a ladder or safety equipment. The risk of falling and getting injured isn't worth the few minutes saved searching for information.
Search via the manufacturer's mobile app
Modern video surveillance systems are tightly integrated with mobile platforms, making the smartphone the primary control tool. If the camera has already been added to the app (for example, Tuya Smart, Tapo, HiCam or Yoosee), you can find the serial number directly in the program interface. This information is usually hidden in the settings section of a specific device. You need to open the list of cameras, select the desired one, and go to the settings menu, often indicated by a gear icon or three dots.
Within the settings menu, look for sections with names like "About Device," "Information," "Status," or "Device Info." This is where technical information about the connected device is stored. Serial number The number may be displayed in full or partially hidden by asterisks for security purposes. In some apps, the full number can be viewed by tapping the "Copy ID" button or scanning the QR code generated on the smartphone screen for sharing with another user.
It's important to note that the app interface is constantly being updated, and the menu layout may change. If you don't see the information you need right away, try updating the app to the latest version through the store. Google Play or App StoreIt's also worth considering that some budget models may not transmit the full SN to the cloud, limiting themselves to only the internal UID.
What to do if there is a UID in the application?
In some cases, the app only displays the UID (unique identifier), which differs from the factory serial number. The UID is usually only needed for P2P connections, while the SN is required for warranty purposes. If you need the factory SN and the app doesn't have it, try finding the camera model in the app and searching for its specifications online—the SN format is often model-specific.
Using the IP camera's web interface
For more advanced users working with professional equipment or cameras that support the protocol ONVIFA great way to obtain information is through a web browser. This method allows you to see detailed technical information that is often hidden in mobile apps. First, you need to find the camera's IP address on the local network. This can be done through the router menu or using specialized network scanning utilities, such as Advanced IP Scanner or ONVIF Device Manager.
Once you have the IP address, enter it into the address bar of your browser (Chrome, Firefox, Edge). The system will ask for your username and password. If you haven't changed the factory settings, try the default combinations; this is often the case. admin/admin or admin/12345Once inside the interface, go to the "System" -> "Information" or "Device Info" section. Here you'll find comprehensive data: firmware version, MAC address, operating time, and, of course, Serial Number.
The web interface also allows you to check the firmware integrity and network connection status, which is useful for diagnostics. If the camera is operating erratically, you can view error logs here. However, keep in mind that some modern cameras may block browser access by default, requiring only a mobile app for initial setup. In this case, try using the browser's compatibility mode or a specialized plugin, if the manufacturer provides one.
☑️ Checking access to the web interface
⚠️ Attention: Web configurator interfaces vary greatly across manufacturers. Menus may have different names, but the logic remains the same: look for the "About," "Status," or "System" sections.
Determination via router settings
If you don't have physical access to the camera and can't log into the app, your home router can help. Any device connected to the Wi-Fi network leaves a trace in the DHCP client table or the list of connected devices. Log into the router's control panel (usually at 192.168.0.1 or 192.168.1.1), entering your administrator credentials. Find the section responsible for LAN or Wireless clients.
In the list of connected devices, you'll see hostnames. Manufacturers often use standard prefixes in their names, which can indicate the model or even contain part of the serial number. For example, a camera Reolink may be displayed as "Reolink-XXXX", where XXXX is the last digits of the MAC address or SN. While it's rare to see the full serial number here, you may get MAC address Devices. Knowing the MAC address and camera model can sometimes help you determine the serial number, as many Chinese OEMs have a correlation between the two.
You can also use your router to check whether the camera is actually online and assigned an IP address. If the device isn't listed, it means the camera isn't connected to Wi-Fi, or it's in AP mode, creating its own network without connecting to the main network. In the latter case, searching through the router won't yield any results, and you'll have to use direct connection methods.
| Manufacturer | Typical prefix in a router | Where to look in the interface |
|---|---|---|
| Xiaomi / Mi | MI- or Xiaobai | Connected Devices |
| TP-Link Tapo | TP-LINK_XXXX | Wireless Statistics |
| Hikvision | DHI or IPC | LAN Status |
| Generic (Tuya) | IPCAM- or GW_ | DHCP Client List |
Specialized software for network scanning
For techies and enthusiasts, there are powerful tools that allow you to identify devices on your network even without knowing their IP addresses. Programs like ONVIF Device Manager (for Windows) or applications Fing (for Android/iOS) perform deep network scanning. They send broadcast requests and analyze the responses of all active devices. ONVIF - This is a universal standard supported by most cameras, which makes this method extremely effective.
By running a scan in ONVIF Device Manager, you'll see a list of all found cameras. When you select a device, detailed technical information will be displayed at the bottom of the window or in the "Summary" tab. Here you can see not only the serial number, but also supported video streams, audio codecs, and PTZ capabilities. This is the best way to obtain reliable information directly from the device, bypassing the manufacturer's cloud services.
If the camera doesn't support ONVIF or the feature is disabled in the settings, you can try the manufacturer's own utilities. For example, Hikvision there is a program SADP Tool, at Dahua — ConfigToolThese utilities operate at the lower network protocol level and can find the camera even if its IP address doesn't match your computer's subnet. They automatically display the serial number and firmware version, and allow you to reset the password.
What to do if the sticker is lost and the camera is not working
The most difficult situation arises when the camera won't connect to the network, the sticker has worn off, and the box has been thrown away. In this case, software methods may not work if the device is unresponsive. However, there are a few tricks. First, try Hard Reset (factory reset). Hold down the reset button (usually recessed into the camera body) for 10-15 seconds while turning on the camera.
After a reset, the camera often switches to access point mode (AP Mode), creating a Wi-Fi network with a name containing its unique identifier. After scanning available Wi-Fi networks on your phone, you may see a network like "IPC_XXXXXX" or "GW_XXXXXX," where XXXXXX is part of the serial number or MAC address. Once connected to this network, you can navigate to the gateway address in your browser and view full information on the web interface.
If that doesn't help, the last option is to disassemble the device. Inside the case, on the board itself, there are often duplicate markings. These can be laser-applied directly onto the PCB or glued to the memory chip. Be careful: opening the case almost always leads to loss of warrantyDo this only if the warranty period has expired or the device cannot be repaired by other means.
⚠️ Attention: Disassembling the camera breaks the seals. If the device is under warranty, any sign of tampering will be grounds for denial of free service. Use this method only as a last resort.
Frequently Asked Questions (FAQ)
Is it possible to change the serial number of an IP camera?
In most cases, changing the factory serial number is impossible, as it is hardcoded into a secure area of the microcontroller's memory during production. However, some advanced users can overwrite the UID (unique identifier) used for P2P connections using special console commands (telnet/ssh) if the camera has root access. However, this is a complex and risky process that can render the device completely inoperable.
What is the difference between a MAC address and a serial number?
MAC address — is a unique identifier of a network interface required for operation in a local network (Wi-Fi or Ethernet). Serial number (SN) is the device's product identifier, used for warranty purposes, cloud registration, and to differentiate one camera from another within the same brand. While they may sometimes be the same or similar, they are technically distinct entities.
The camera shows "Device Offline", will searching for SN help?
Finding the serial number alone won't restore the connection, but it will help identify the device in the router or app. If the camera is offline, check the power and Wi-Fi settings. Knowing the serial number, you can try deleting the device from your cloud account and adding it again, which sometimes resolves frozen status issues.
Where can I find the SN if I bought the camera from a marketplace without a box?
If you don't have the box, try finding it in your store account. Electronic receipts or product specifications sometimes (but not always) include the serial number. If not, your only options are a physical inspection or connecting via a PC using the network scanning software described above.