Barcode, QR code, or RFID for Asset Tracking?

By Michael  •  7 mins read

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barcode qr code rfid

In this article we go over how barcode, QR code, and RFID asset tracking differ, what RFID costs once you add up the hardware, and how to tell which one fits your organization. We also cover label sizes, printers, and scanning with a phone.

If someone on your team has asked whether you should be using RFID, start with the question underneath it: how many assets do you count, how often, and how much time does counting take now?

For most IT teams the answer points to QR code labels and a phone. RFID becomes worth the money in a narrower set of situations, usually inside a warehouse, a data center, or a tool crib.

The short answer

If you manage a few hundred to a few thousand assets across offices and remote employees, use QR code labels and scan them with a phone. Labels cost cents each, the camera is already in everyone’s pocket, and that setup handles check-in and check-out, audits, and asset lookups.

RFID starts to pay for itself when you have thousands of assets sitting close together and you count them many times a year, or when assets move through a fixed checkpoint like a dock door.

How barcodes, QR codes, and RFID differ

All three attach an identity to a physical asset. GS1, the standards body behind most product and asset identifiers, treats barcodes and RFID as alternative data carriers: two ways to encode the same identification.

1D barcodeQR codeRFID (passive UHF)
How it’s readOptical scanner, line of sightPhone camera or scanner, line of sightRadio waves, no line of sight
Reads per scanOneOneMany tags at once
HardwareHandheld scannerAny smartphoneDedicated RFID reader
Cost per labelCents, printed in houseCents, printed in houseCents to several dollars by tag type
Data capacityShort IDMore data, plus error correctionUnique ID plus optional memory
Works on metalYesYesOnly with tags built for metal

QR codes are a type of 2D barcode. They were designed to be read by a camera, and they carry error correction, so a code that gets scratched or partly covered will often still scan. That is why we recommend QR codes for scanning with the Reftab mobile app.

What the research shows

The strongest numbers on RFID accuracy come from the Auburn University RFID Lab and GS1 US. Their study covered more than a million items across eight brand owners and five retailers. Orders tracked with legacy barcode data contained errors in roughly 69% of cases. RFID-based reconciliation reached 99.9% order accuracy. Inventory accuracy went from an average of 63% to 95%, and cycle count time dropped by 96%.

Read those figures with the setting in mind. The study looked at retail supply chains, meaning cartons and apparel moving between brands and stores in very high volumes. It did not look at a laptop fleet, a monitor closet, or a set of field tools. The 63% number describes what happens when people count huge quantities by hand under time pressure. It does not describe the accuracy of scanning one barcode on one laptop.

GS1 makes a similar point in its own RAIN RFID guidance. The benefits it lists are genuine: no line of sight needed, fast bulk reads, tags you can write to. GS1 then says RFID is not necessarily always the better choice and that you should look at your use case first.

What RFID costs after the tags

Tags themselves are cheap. Passive UHF labels run from a few cents to about a quarter each in volume, and tags built for metal or rough handling cost several times that. The surprises are in the rest of the bill.

CostWhy it matters
ReadersA smartphone cannot read the UHF tags used for asset inventory. You need purpose-built handheld readers, usually quoted in the low thousands of dollars each, or fixed readers and antennas at each checkpoint.
On-metal tagsMetal reflects and absorbs radio waves. Laptops, servers, switches, and racks need tags designed to sit on metal, which cost more than a paper label.
Liquids and dense stacksLiquids absorb signal, and tags packed tightly together interfere with each other. Read rates have to be tested in the space you actually use.
Tagging laborSomeone has to attach a tag to every asset, in a consistent spot, and match every tag to a record.
Planning and integrationAn RFID rollout touches hardware, software, and process at the same time. Teams that skip a pilot in their own building are the ones who report read rates they did not expect.
Coverage that slipsA tag that peels off, or an asset that never got tagged, is invisible to a reader.

RFID is still an infrastructure purchase, so it needs a business case the way a network refresh does.

When RFID is the right call

Three conditions usually have to line up:

  1. Count volume. Thousands of assets sit close together in a small number of locations.
  2. Count frequency. You count those locations monthly, continuously, or on a compliance schedule.
  3. Labor pressure. Scanning one label at a time would take more hours than your team has.

Warehouses and distribution centers fit. So do large hospital systems tracking mobile equipment, data centers with dense racks, and tool cribs where equipment passes a gate. A reader that sweeps a room in a few minutes saves hours on every count in those settings.

One annual audit of a few hundred assets spread across offices and home desks does not generate that kind of volume, so there is nothing for a reader to save.

A note for construction and field teams

Construction teams ask us about RFID more than any other group. Tool theft and misplaced specialty equipment are all costly threats to construction asset management.

RFID does work well at a fixed point. A tool crib or a yard gate gives you one place where equipment passes a reader on its way in and out.

The job site is where the limits show up. An RFID read tells you a tagged item was near a reader at a particular moment. It does not tell you where that tool went after it left the gate. Job sites also tend to be full of metal, and every additional site needs its own readers. Most contractors we talk to get further with a QR label on each tool, scanned by phone at check-out and return, with custody tracked by person and job. If you need live location on a handful of high-value machines, that is a separate category of tag built for the purpose.

Decision framework

FactorQR or barcode fitsRFID worth evaluating
Asset countUnder a few thousand, spread across offices and peopleMany thousands in a few concentrated locations
Audit frequencyAnnual or semi-annualMonthly, continuous, or compliance-driven
Program stageFirst formal tracking program, or moving off spreadsheetsEstablished program with budget for tracking infrastructure
IndustryTechnology, education, nonprofit, professional services, most office-based teamsWarehousing, large healthcare systems, data centers, fixed tool cribs
WorkforceDistributed or remote, with equipment at homes and branch officesEquipment concentrated in a few buildings
Hardware budgetUse the phones you already haveBudget for readers and on-metal tags
Asset movementAssets assigned to people, checked out occasionallyAssets moving through checkpoints all day

Most answers in the left column means you should start with QR labels. Adding a different tag type at one site later does not mean starting over, because your asset records stay the same either way.

Why QR labels work for most teams

We often recommend QR codes over 1D barcodes for a few reasons:

  1. Phone cameras read them quickly. QR codes were designed for camera scanning.
  2. Error correction. A partly damaged code will often still scan.
  3. More data per code. A QR code holds more than a 1D barcode.
  4. No extra hardware. The Reftab mobile app scans both barcodes and QR codes with a phone or tablet camera.

Every asset in Reftab gets a unique asset ID, and that ID generates both a barcode and a QR code. You can print either one from the same record.

Label and printer guidance

Leave white space around the code. A QR code needs a blank border, called the quiet zone. Text or a label edge crowding the code causes scan errors. Print at high resolution too, since a blurry or pixelated code is harder for a camera to read.

Match resolution to label size. Go with 300 DPI for small tags, or for any tag that includes your logo. For larger, simpler tags, 180 DPI is usually fine.

Size the label around the code. You can set custom label dimensions in Reftab to fit continuous rolls or Avery sheets, and there are presets for common sheet sizes. Our guides use a 1″ x 0.5″ roll label on a desktop Zebra printer and Avery 1″ x 2-5/8″ sheet labels as examples. Note that Reftab does not currently support 2-up labels.

Check how the printer connects. Reftab finds any printer connected to your computer. Most connect by USB, and some models are Bluetooth only. When you compare printers, look at print speed, resolution, and warranty terms, including whether the manufacturer requires its own labels or voids the warranty if you use another brand. Zebra sits at the higher end, with Brother and DYMO at lower price points.

Avery sheets are a good way to start. Avery labels run about $0.03 each, work with the printer you already own, and let you print in color. Reftab customers get 15% off select Avery labels.

Print a test batch first. Run a few labels to check spacing and size before you print for the whole fleet. For a roll printer, install the drivers that came with it and set the label size manually so the code lands where you expect.

Plan for wear. Labels on equipment that gets handled, cleaned, and moved will degrade over time.

Already have tags on your assets? Any existing barcode or QR code works, as long as it encodes an asset ID in your account. You can import pre-printed tags ahead of time as placeholder records, so scanning a tag from a roll of ABC001 to ABC100 pulls up the matching asset.

Mobile scanning tips

  • Use a phone for small batches. Check-outs, spot checks, and an audit of one room or office go quickly with a camera.
  • Add a handheld scanner as volume grows. Reftab works with USB and Bluetooth handheld scanners on the desktop. Under Loans, go to Scan Out, scan the person’s employee ID, then scan each asset. The cursor advances on its own.
  • Run audits from the phone. Auditors scan the labels on the assets in their list. A scan in the expected location marks the asset found, a scan somewhere else flags a location mismatch, and anything unscanned stays flagged. A reconciler then works through each discrepancy.
  • Audit at least once a year. That is the cadence we recommend in our fixed asset audit guide.
  • Use barcode prefixes to keep IDs organized. Prefixes let you generate IDs by site or asset type, such as NAMR00001 for North America and EMEA0001 for Europe.
  • Put one barcode on the box for bulk accessories. For items like keyboards, scan the box each time one comes out or goes back.
  • Test scanning where the work happens. Check lighting, glare, and gloved hands on site before you label everything.

Decision

RFID solves a specific problem well: counting large, dense inventories quickly, and catching assets as they pass a fixed reader. If your assets are spread across offices, desks, and home setups, and you audit once or twice a year, QR labels and a phone will track them accurately at a small fraction of the cost.

If you want an asset tracking specialist’s opinion, book a demo and tell us your asset count, where those assets sit, and how often you audit them.

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