An RFID Solution For Every Problem

For short, medium and long-range RFID applications.

RFID Tags for Tagging, Scanning & Tracking

RFID Tags. SYNOTAG LF, HF, UHF and Active RFID tags solve problems in logistics, manufacturing, agriculture, transportation, asset security, inventory  management, item level tracking, access control and secure RFID identification applications.

RFID Solutions. Browse our products and solutions to find what you need and contact us for pricing or a free consultation so that we can suggest the right tags for your project.


SYNOTag RFID tags are high quality, available in unique form factors and designed in a range of materials, styles and with custom branding if required. Our RFID tags range from passive 125 KHz, 13.56 MHz, NFC and UHF chips to 2.4 GHz active tags and can be shipped globally to you or drop shipped directly to your customer.

Please contact us today for a free consultation and factory direct pricing.

  • Choosing an RFID Tag: Considerations
    So many SYNOTAGs to choose from: which tag is right for your application?

    SYNOTAGs come in different sizes and form factors to handle any RFID application. We also develop custom tags for applications where you need a special size or shape to suit your needs. Please contact us for a free consultation so that we can best support you.

    Our RFID tags span all standard frequencies. Decide on what frequency to use and what form factor will work best for you application and then we can offer pricing or more details.

    Here is some information that will help you make the right choice:

    Passive Low Frequency (LF) RFID Tags (125 – 134 kHz)

    Our 125 KHz RFID tags are passive so the power to read a tag comes from the electromagnetic waves emitted by the reader that induce a current in the tag’s antenna.

    LF tags are usually read at 6-15 cm and are suitable for applications where you do not want many tags read at once. The lowest cost tags are the 125 KHz read only tags while other LF tags are available with memory at a higher price.

    Typical Applications: Product tracing, access control, livestock tracking, tracking/identifying objects with high metal or water content, authentication.

    Why choose an LF tag?

    LF tags read at short distances (< 10 cm). 125 KHz LF RFID tags have a slow data transfer rate but are ideal for scanning single objects with high water content, like people, fruit, beverages and liquids and are often used in application with high metal content.

    LF tags that operate at 134 KHz are typically used for animal tracking applications.

    Passive High Frequency (HF) RFID Tags (13.56 MHz)

    Our high-frequency 13.56 MHz RFID tags are passive and read from 15-100 cm depending on the power of the reader.

    Up to 20 HF tags can be read at once by a reader, which may be suitable for some applications. The cost for an HF tag is usually higher than the LF tags owing to the better read performance, data transfer speed, security features and tag memory.

    Typical Applications: Event ticketing, transit smart cards, secure stored value/credit, payments, access control, patient management, library book management, asset rental and marketing.

    HF ISO Standards: ISO 15693 is the standard for tracking items. Other HF standards include the ISO/IEC 14443 A and ISO/IEC 14443 standards for MIFARE technology, which is used in bracelets, cards and tags for various types of applications.

    Why choose an HF tag?

    13.56 MHz HF tags are read with a compatible 13.56 MHz RFID reader and ideal for scanning both single objects or up to 20 objects at one time.

    Data transfer speed is faster than a 125 KHz tag but the read and write distance is still considered short at circa 15 cm – 30 cm. For longer read-write distances you need to consider a UHF tag.

    HF tags are typically more expensive than LF tags but less expensive than UHF Tags. Tag credentials are used in building or event access control, public transportation and electronic payment system applications. HF tags can also work well around metals and liquids.

    Passive Ultra-High Frequency (UHF) Tags (860 – 960 MHz)

    The UHF frequency is regulated by a global standard called EPC Global Gen2 (ISO 18000-6C). Europe uses 868 MHz for UHF and the USA uses 915 MHz. It is important to note this difference when ordering.

    Passive UHF tags can read at circa 3-8 meters, however, passive UHF wristbands read at circa 30 cm due to body shielding.

    UHF tags are normally more expensive than LF or HF tags. Specify the correct tag for your application to keep costs down.

    UHF frequencies typically offer better range and can transfer data faster but use more power and are less likely to pass through materials. They also tend to be more directional and require a clearer line of sight between tag and reader.

    Typical Applications: Inventory management, anti-counterfeiting, vehicle access control, parking management, toll collection, warehouse applications.

    Why choose a UHF tag?
    UHF tags are good at scanning many boxes of goods at once as they move through a door into a warehouse. Radio waves bounce off metal and are absorbed by water at ultra-high frequencies so they tend to be not so popular for those types of applications but good system design and engineering can overcome this shortcoming of UHF tags.

    Active RFID Tags (2.4 GHz)

    The 2.4 GHz microwave band emits a signal from the tag with the use of a battery that runs the microchip circuitry. This allows for read ranges of 1 to 100 or even 1500 meters. Active RFID tags are expensive but solve RFID problems that other tags cannot.

    Typical Applications: Tracking and locating people at long range such as in patient wandering or child security applications. Long-range asset tracking/locating at auto dealerships, manufacturing plants, in hospitals and on construction sites, mining applications, laboratories, remote monitoring and asset security applications.

    Why choose an Active RFID tag?
    Our active RFID tags are beacon type and used for asset locating, tracking and security management. Deciding on an active tag is normally due to the read distance needed, the asset value and project budget.

    Active RFID tags can range from $5 – 100/pc so these tags are not well suited to applications that rely on low cost.

    Near Field Communication (NFC) Tags

    Near-field communication (NFC) enables two electronic devices, one of which is usually a smartphone, to establish communication and exchange data such as text or numbers when in proximity to each other.

    Different NFC tags have different available memory. The memory on an NFC tag can be used store things like a URL (web address) or a telephone number. This information is stored in a specific data format (NDEF – NFC data exchange format) so it can be read by an RFID enabled device or smart phone with NFC reader.

    As an example, a standard Ultralight NFC tag can store a URL of around 41 characters, whereas the newer NTAG 213 NFC tag can store a URL of around 132 characters. It is important to get the correct amount of memory on the tag as this will influence cost.

    NFC brings endless possibilities for use in promotional campaigns, marketing and advertising; any place where small bits of data can be used to create an event or perform a task.

    Contact us for more information. Hopefully, this short guide has been helpful to making a decision on what kind of RFID tag and frequency to use for your project. If you are still not sure or you need some pricing, please contact us today for a free consolation without obligation.

SYNOMETRIX is a Leading Supplier of RFID Tags

We have built our reputation as a leading supplier of RFID tags and readers on high quality products and great service. Click here to find out more about us and then contact us for free consolation and prices so that we can help to make your project a major success.

  • Tutorial: What is RFID?
    RFID is Overtaking the Use of Barcodes 

    RFID (radio frequency identification) is a wireless communication between a reader and tag that uses electromagnetic or electrostatic coupling to uniquely identify an object, animal or person. RFID is now used across industries like healthcare, manufacturing, logistics, shipping, retail, events, sports, marketing and even in your home.

    RFID offers significant benefits over the use of barcodes although the price of an RFID is multitudes higher than a simple barcode label:

    • Unlike barcodes, RFID tags do not require a direct line of sight to be read.
    • Data stored on an RFID tag chip can be updated in real-time while barcode data is read-only and cannot be changed unless the barcode label is changed.
    • RFID tags bring unmatched reading capability to applications where barcodes are fully ineffective.
    How RFID Tags Work

    An RFID system consists of three components: a reader, a tag and a database. The RFID reader is a network-connected device that can be portable or permanently attached. The reader emits radio waves at the tag to excite it and the tag sends a wave back to the antenna that is translated into usable data.

    The transponder is located in the RFID tag and assembled with the tag antenna. The tag read range is based on the type of tag and reader, the RFID frequency and any interference in the surrounding environment where the tag is placed.

    Types of RFID Tags

    There are two main types of RFID tags: active RFID and passive RFID. An active RFID tag has a battery inside the tags while a passive RFID tag does not have a battery, receiving power from the reading antenna instead.

    RFID tags typically hold less than 2,000 KB of data, including a unique identifier/serial number. Tags are read-only or read-write, where data can be added by the reader or the existing data overwritten by the reader.

    The read range for RFID tags varies based on factors including type of tag, type of reader, RFID frequency, and interference in the surrounding environment or from other RFID tags and readers. Generally speaking, active RFID tags have a longer read range compared with passive tags due to the stronger power source.

    RFID Tag Collisions

    RFID can be subject to what is called reader collision and tag collision. Reader collision is when a signal from one RFID reader interferes with another reader and it can be prevented by using an anti-collision protocol designed to make RFID tags take turns at transmitting to their assigned reader.

    Tag collision occurs when too many tags are in range of a reader and transmit data at the same time. Choosing a reader that gathers tag info one at a time will prevent this issue or you need to use a reader with an anti-collision feature.

    Need some help or pricing on the right RFID tag for your application? Please contact us today for a free consolation without obligation.

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