Serial Number Scanner: How to Capture Serials, IMEIs and Label Data in One Scan

Key takeaways

• A serial number scanner uses a camera and OCR or barcode decoding to read a product’s serial number instead of typing it.
• Most device labels carry several identifiers at once: serial, IMEI, model, part number and one or more barcodes.
• Barcode-only scanners miss labels with no barcode or a damaged one. Single-line OCR reads one field and misses the rest.
• Label capture reads barcodes and printed text together and returns each field your app needs.
• The best SDK for the job handles worn, small, curved and low-contrast labels, not just clean ones.

What Is a Serial Number Scanner?

A serial number scanner is software that reads a product’s unique serial number from a label or part using a camera, then sends it to an app or system. It replaces typing long strings of letters and numbers by hand.

Serial number scanners work in two ways. Some decode a barcode or QR code that encodes the serial. Others use optical character recognition (OCR) to read the printed characters directly. The most useful ones do both.

Why Serial Numbers on Labels Are Hard to Read

Serial numbers look simple on a spec sheet. On a real device in a warehouse or service van, they are some of the hardest text to capture.

The common thread is that the serial is never alone. A scanner has to find the right field among several, and still read it when the label is worn.

Barcode Scanning vs OCR vs Label Capture

There are three ways to capture a serial number from a label. They solve different problems.

For most operations, the question is not “can it read a serial?” but “can it read every field I need from this label in one go?” That is what label capture is built for. For background on barcode formats, see our guide to types of barcodes.

Where Teams Scan Serial Numbers Every Day

Serial number capture sits at the start of many workflows. If it is wrong there, every record after it is wrong too.

• ITAD intake: every laptop, phone and drive is logged by serial on arrival. That serial links to its erasure record, grade and final disposition the backbone of an R2v3 chain of custody.
• Electronics retail and returns: serial and IMEI are captured at sale and at return to stop fraud and process warranties.
• Field service: technicians record the serial of the unit they repair, often on equipment in awkward, dim places.
• Warehouse and 3PL: serialised stock is scanned at receiving, picking and shipping for traceability.
• Manufacturing and assembly: part serials are recorded so a finished product can be traced back to its components.

What to Look for in a Serial Number Scanner SDK

If you are adding serial number scanning to your own app, test SDKs on your hardest labels, not on clean demo samples. Check these six things:

1. Multi-field capture. Can it return serial, IMEI, model and barcode values from one scan, each labelled?
2. Format rules. Can you define the pattern a serial should follow, so a misread is flagged instead of saved?
3. Hard surfaces. Does it read worn, small, glossy, curved and low-contrast labels, including stamped metal?
4. Barcode + text together. Does it fall back to printed text when a barcode is damaged, or cross-check one against the other?
5. Platform fit. Native iOS and Android support, and how it fits into your existing app.
6. Data handling. Where images and results are processed and stored, to match your security needs.

How Scanflow Label Capture Works

Scanflow Label Capture is part of Scanflow Capture, an AI-enabled asset identification SDK for iOS and Android. It reads barcodes and printed text on a label in a single capture and returns the fields your workflow needs.

A typical flow looks like this:

1. The user points a phone or tablet at the label.
2. The SDK finds the barcodes and text blocks on the label.
3. It identifies the fields you configured, such as serial number, IMEI, model and part number.
4. It returns each value to your app, ready to save against the asset record.

Scanflow is built for the identifiers ordinary scanners struggle with: damaged labels, low-contrast and stamped serials, and labels with many fields. The same SDK also covers serial number and text scanning, VIN scanning and tire sidewall scanning, so one integration handles several identification jobs.