Barcode labels play a vital role at every stage of the supply chain, supporting tracking, identification, and inventory control in manufacturing, warehousing, logistics, and more. Scanners also provide a crucial function: translating the encoded information into real-time data that powers operations.
Handheld barcode scanners deliver the mobility and flexibility that today’s operations demand. Because they support such a broad range of industries and use cases, handheld scanners come in many forms. Here’s what you need to know to choose the right one for your operations.
Handheld Barcode Scanning Technology
Although the function of handheld scanners is the same—to read barcodes—how they accomplish this and the barcode symbologies they support differ from unit to unit. There are three primary types of technology used to scan barcodes.
Laser Scanners
The most common type of handheld barcode scanner is the laser scanner, which reads barcodes by detecting the light reflected from a laser beam. Laser scanners operate best when scanning items within 1 to 2 feet, or more simply, within arm’s reach. That said, special long-range scanners and reflective labels can scan distances up to 45 feet.
Typically, laser scanners only read traditional 1D barcodes, but some specialized scanners can read stacked symbologies like PDF417.
Charge-Coupled Devices (CCDs)
CCDs, also more generally known as LED scanners, capture an image of the entire barcode in a single snapshot, converting reflected light into digital data via an array of light sensors. CCD scanners are known for their speedy scans and durability. Because they don’t have any moving internal parts, they’re resistant to drops, impacts, and everyday use.
Similar to laser scanners, CCDs work best when scanning items within reach and work best with conventional 1D barcodes, such as UPC, EAN, and Code 128.
2D Imagers
2D imagers use imaging sensors to capture a complete picture of the barcode—similar to how a camera works—and decode the pattern into readable data. The clear advantage of 2D imagers is that they can scan 1D and 2D barcodes, such as QR Codes and DataMatrix Codes. 2D barcodes can contain considerably more information than 1D barcodes and offer better error correction.
Another advantage of 2D imagers is that they can read barcodes in any direction, unlike laser scanners and CCDs, which require alignment with the barcode. Ultimately, this leads to faster scans and more efficient operations.
What’s the most future-proof handheld barcode scanner? Because 2D imagers can scan both 1D and 2D barcodes, they’re often considered the most adaptable technology.
Corded vs. Cordless Handheld Barcode Scanners
Handheld scanners are available in both corded and cordless configurations. Your workflow is a significant factor in what design is best for your application.
Corded Barcode Scanners
Corded barcode scanners remain a popular solution for many applications. They’re cost-effective, don’t require charging, are easy to set up, and aren’t affected by occasional network reliability issues. Corded barcode scanners are ideal for jobs at a fixed workstation—for example, processing shipments at a receiving desk or scanning items at a point-of-sale register.
Cordless Barcode Scanners
Cordless barcode scanners allow personnel to move freely around a facility—they’re not limited to a fixed station, and they eliminate cord tangles and tripping hazards. Cordless handheld scanners are typically supported by one of two technologies: WiFi or Bluetooth.
- WiFi: provides a greater range than Bluetooth-enabled scanners, supports multiple devices, and pairs with cloud-based systems to deliver instant updates.
- Bluetooth: connects the scanner to hardware, such as tablets and mobile devices, for quick information transfer. Unlike WiFi, Bluetooth-powered scanners aren’t affected by network disruptions and use less energy—resulting in better battery life.
Although wireless scanners offer more mobility, they’re more prone to connectivity issues and require regular charging.
Other Handheld Barcode Scanner Considerations
With the big questions answered—barcode type and corded vs. cordless—there are a few other factors to consider when finding the right handheld scanner for your operation.
Environmental Challenges
What does your workflow look like? Is your scanner going to work in a controlled location, like the point of sale in a retail application? Or will it need to withstand warehouse or outdoor use with potential exposure to drops, impacts, and environmental factors, such as dust, dirt, moisture, and temperature fluctuations?
If your scanner is going to work in harsh environments, consider selecting a handheld scanner with an ingress protection (IP) rating between 65 and 67, which guards against dust and water. Also look for units that have been drop-tested
Ease of Use
The ease of operation of a handheld barcode scanner can lead to big efficiency gains. What might seem like minor factors—like button placement, grip ergonomics, weight, and intuitive operation—can all bolster adoption, improve employee satisfaction, and ultimately increase productivity.
Workflow
Do you need to scan barcodes from difficult angles? In which case, a cordless unit might be the optimal choice. Do you have long shifts with little downtime at a workstation? A corded scanner might be right for you. Are you currently only using 1D barcodes but want to be prepared if your operational needs shift? A 2D imager can meet your needs today while being adaptable to future processes. Are you working in a gigantic warehouse with massive vertical storage? In this application, a long-range, cordless laser scanner is the ideal solution.
Electronic Imaging Materials, Inc.
If you’re having trouble selecting the right handheld barcode scanner or barcodes for your operation, the Label Experts can help. For roughly 40 years, EIM has helped businesses across the supply chain and industries find the right barcodes—along with the supporting systems and hardware—ensuring easy identification, traceability, and long-term operational success. Contact us to learn more.
