Cykeo RFID IoT Solution Products R&D Manufacturer
What is an RFID Card Reader?
101Learn what is an RFID card reader, how it works for security, payments, and attendance. Discover CYKEO's reliable RFID card reader solutions.
MoreCan Handheld RFID Scanners Read Tags Through Walls or Metal?
Handheld RFID scanners excel at tracking items in open environments, but their ability to read tags through walls or metal depends on materials, frequency, and scanner design. While RFID signals can penetrate some barriers, physical obstructions like concrete or steel often disrupt performance. Here’s a detailed look at what’s possible and how to optimize scans in challenging setups.
1. RFID Signals vs. Common Materials
RFID operates via radio waves, which interact differently with materials:
- Non-Metallic Walls (Drywall, Wood):
UHF (Ultra-High Frequency) scanners can read tags through thin walls (up to 1-2 inches) if no metal framing exists. Ideal for tracking items in adjacent rooms or behind lightweight barriers. - Concrete/Brick Walls:
Thick concrete (>6 inches) blocks most RFID signals. Moisture in concrete further degrades performance. - Metal Surfaces:
Metal reflects RFID waves, causing interference. Tags placed directly on metal require specialized metal-mount tags with shielding to function.
2. How Cykeo Handheld Scanners Overcome Obstacles
Cykeo’s industrial-grade scanners use two strategies to mitigate interference:
- Frequency Agility: Automatically switches between 865–928 MHz to avoid “dead zones” caused by reflective surfaces.
- High-Power Antennas: Boosts signal strength to penetrate thin non-metallic barriers or read shielded tags on metal assets.
For example, Cykeo devices can scan shielded tags on metal toolboxes through a thin plywood enclosure but struggle with thick steel containers.
3. Best Practices for Challenging Environments
- Tag Placement:
Attach tags to non-metallic surfaces (e.g., plastic bins) or use metal-mount tags with foam spacers. - Orientation:
Angle the scanner’s antenna 45–90 degrees from metal surfaces to reduce signal bounce. - Signal Testing:
Perform a site survey to identify “sweet spots” for reliable reads.
4. When to Use Alternative Solutions
For tracking assets inside thick metal enclosures (e.g., shipping containers):
- GPS or BLE Beacons: Better for real-time outdoor/indoor tracking.
- Fixed RFID Readers: Install readers inside metal structures for continuous monitoring.
Case Study: Cykeo in Manufacturing
An aerospace supplier used Cykeo scanners to track carbon-fiber parts stored in aluminum racks. By combining metal-mount tags and angled scanning, they achieved 95% read accuracy despite partial metal interference.
Relevance
-
-
RFID Employee Badges: Do They Actually Improve Workplace Security?
38RFID employee badges explained from real workplaces: access control, tracking limits, privacy risks, and what companies get wrong.
More -
How Security Tag Readers Work: RFID vs. Magnetic Systems – Which Is More Efficient?
948Understand how security tag readers function and compare the advantages of RFID and magnetic systems to help you choose the right anti-theft tag reading technology for your business.
More -
What Are the Top Long-Range RFID Readers for Vehicle Access Control Systems?
838Discover the top long-range RFID readers optimized for vehicle access control. Learn how Cykeo’s secure, weatherproof solutions enhance security in parking lots, gated communities, and logistics hubs.
More
