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About RFID4U

Which services does RFID4U provide?
We are a full solution provider and develop business intelligence solutions for various applications and verticals from start to finish. Our services start from site survey, through system design, hardware selection and software development to implementation and troubleshooting. Our team of engineers, software developers and project managers has extensive experience in designing and deploying enterprise scale solutions all over the world. We are also the largest RFID training provider in the world.
Which technologies do you work with?
We are deploying RFID, NFC, barcode, GPS and mobility solutions to our customers. Our solutions are not one size fits all as we tailor each solution to customer needs. Before we choose technology, we listen to our customers and fully analyze the problem, business processes, environment and goals. Not all challenges are solved by one technology, often it is a combination of technologies or a pure software solution that fits the bill and we can help you navigate through the decision making.

Technology Questions

What is the difference between active, passive and semi-passive RFID tags?
A passive tag does not have its own power source (there is no onboard battery) or a radio transmitter. It obtains power from the RF waves emitted by the reader. Therefore, it can communicate only when inside the read zone and while energized by the RF waves. Power from the radio waves operates the tag’s integrated circuit, sending data back to the reader. These tags usually have read range of anywhere from few inches to 20 feet and inlays cost approximately $0.10 when purchased in large quantities. They are primarily used in the applications requiring low cost, simple and light-weight tags. Semi-passive (or also sometimes called Semi-Active) tag has a battery but no radio transmitter. The battery powers its integrated circuit (IC), which helps it to modulate the reflected signal. The advantage of this type of tag is that it does not entirely rely on power from the reader. Therefore, you can use low-power readers and store more data on the tag. This type of tags is used to get longer read range or to couple the tag with environmental sensors such as temperature, pressure, relative humidity, etc. This tag can be read at a longer range of up to 100 feet. Active tags have their own battery and radio transmitter. This tag communicates at a longer distance because it is not dependent on a reflected signal. Its communication distance ranges from 100 to 750 feet and it can have more memory to store data. However, the cost is higher, and tags have larger size and higher weight than passive tags.
What are the advantages of RFID over barcode?
Barcodes require a line of sight scanning, usually within a short distance and cannot be read in bulk (many barcodes at the same time). This is all eliminated by RFID technology, where you can simply pass a large amount of tagged items through a relatively wide read zone and even tags that do not face the reader antennas will be read (unless of course shielded by materials that even RF waves cannot penetrate like metal or sometimes liquids). Therefore, using RFID is faster and more efficient, albeit slightly more expensive, due to the cost of tags and readers being higher than barcode labels and scanners.


TAGMATIKS is a Sensory Adaptive Network Software Platform that we developed to enable rapid RFID, NFC and Auto ID technology deployment. TAGMATIKS can be used with any and no technology and deployed in any solution or vertical. It is a cutting-edge enterprise, cloud-ready software platform that enables rapid deployment and integration of scalable, real-time visibility solutions, for enterprise asset management, inventory control, warehouse management, access control, apparel tracking, work-in-process tracking, re-usable assets tracking, campus tracking, construction management, security, anti-counterfeiting and other applications.
Have you deployed TAGMATIKS in any solutions lately?
Since we have first developed TAGMATIKS, it has been deployed in multitude of solutions including agriculture (grower operations tracking), healthcare (surgical tool tracking), construction (access control and worker safety), oil & gas (inventory tracking and certification) and many other applications. Check out the TAGMATIKS page for more detail about the latest uses!