How to choose the right RFID tag for your application

RFID tags consist of small electronic devices with chips and antennas that store specific information about an object and transmit radio waves to a reader, which can automatically identify and track the object. Unlike barcodes, RFID tags do not require line-of-sight to read, which allows for more efficient data collection.

The structure of an RFID tag consists of three main parts.

• A microchip that stores data.
• An antenna for transmitting radio signals.
• A support material/backing material that covers the tag.

RFID tags are divided into two main types

Passive tags do not require a built-in battery. Instead, they receive power from radio waves transmitted by the reader, limiting their reading range. Passive tags operate primarily on three frequencies: low frequency (LF), high frequency (HF), and ultra-high frequency (UHF).

The most popular UHF tags are those that have a longer read range (up to 12 meters), faster data transmission rates, and lower tag production costs compared to low-frequency (LF) and high-frequency (HF) RFID. They are ideal for inventory management in the retail and logistics industries, asset tracking systems within warehouses and buildings.

Active tags have a built-in battery, allowing them to transmit signals over longer distances and are often used to track high-value assets.

Choose the right RFID tag for your application

RFID tags come in both hard and soft types.

Hard tag A durable, long-lasting, reusable tag encased in a hard shell that protects the chip inside from shock and vibration. It can last for years even in harsh conditions and can be bolted, screwed, or zip-tied to devices such as generators, air conditioning systems, industrial equipment, outdoor equipment, or vehicles used in factories.

 

 

Soft tag are flexible and can be attached to a variety of surfaces. They are often used in applications such as apparel, textiles, or flexible packaging. They are thin and have an adhesive backing, allowing them to be easily attached to a wide variety of products. They are popular in retail, supply chain, and inventory management.

 

 

Selecting the right tag format not only improves tracking efficiency, but also streamlines auditing, provides clearer records, and increases confidence in your organization's asset information, taking into account the following factors:

• Environmental Factors: Assess the environment your RFID tag will be exposed to. Consider factors such as extreme temperatures, humidity, chemicals, or shock.
• Tag Durability and Lifespan: Assess the durability and lifespan requirements of your RFID tag, considering factors such as the expected lifespan of the tagged item, exposure to harsh conditions, or the reuse of the tag.
• Tag Mounting Options: Determine your preferred RFID tag mounting method. Consider whether you need self-adhesive tags, screw-in mounting holes, or specialized mounting options (such as straps).
• Cost: Assess the cost of RFID tags and labels based on your budget and application size. Compare prices from various vendors, considering factors such as tag performance, durability, and other features.