Itemit - RFID Asset Tracking System

An RFID (Radio Frequency Identification) asset tracking system uses radio waves to automatically identify, locate and monitor physical assets without requiring line-of-sight scanning. Unlike barcodes, which must be scanned one at a time, RFID readers can detect dozens or hundreds of tagged assets simultaneously, from several metres away, even if the tags are hidden inside boxes or stored behind other objects.

A complete RFID asset tracking system consists of three core components: RFID tags (small electronic labels attached to your assets), RFID readers (handheld or fixed devices that emit radio signals and capture tag responses), and RFID software (a management portal that processes and stores the data, giving you real-time visibility of every tagged asset).

When an RFID reader emits a radio signal, nearby passive RFID tags (which contain no battery) harvest that energy to power their microchip and broadcast a unique identifier back to the reader. The reader captures this response in milliseconds and logs the tag ID, timestamp and location to your asset management software. The result: a complete, accurate, real-time picture of where every tagged asset is, who last interacted with it, and whether it is overdue for maintenance or inspection.

Most commercial deployments use UHF (Ultra High Frequency) RFID, which operates at 860 to 960 MHz and provides read ranges of up to 10 metres: ideal for warehouse aisles, tool stores and loading bays. HF (High Frequency) RFID at 13.56 MHz is used where shorter range (up to 1 metre) and greater precision are needed, such as medical device tracking or library management.

Barcodes and QR codes require manual, line-of-sight scanning, one item at a time. A stocktake that takes four hours with a barcode scanner can take under 20 minutes with a handheld RFID reader. Fixed RFID readers mounted at doorways or storage areas automate this entirely: assets are logged as they enter or leave a zone with no human intervention required.

RFID tags are also significantly more durable than printed labels. They resist moisture, dust, chemicals and physical abrasion, making them the preferred choice for tools and equipment tracking, hospital and medical device management, construction site deployments, and high-value collection audits.

Understanding the difference between active RFID vs passive RFID is critical when designing your RFID asset tracking system. Passive RFID tags do not have a battery. Instead, they run on power harvested from the RFID reader signals, making them lightweight, low-cost, and virtually maintenance-free with a lifespan of decades. They are perfect for tracking tools, IT equipment, and hospital assets.

Active RFID tags, on the other hand, contain an internal battery to continuously broadcast their own signal. While active RFID offers a much longer read range (up to 100 metres or more) and is ideal for real-time tracking of vehicles or cargo containers, the tags are larger, more expensive, and have a limited battery life of 3 to 5 years. For most enterprise operations, a passive RFID asset tracking software setup provides the optimal balance of cost-effectiveness and audit speed.

Learn more in our detailed comparison: Passive RFID vs Active RFID: which is right for you?

itemit is your one-stop shop for RFID readers, tags and software. Get everything you need to manage your readers, collect tag reads and deliver useful information to the business.

• Over the years we have worked with RFID reader manufacturers across the world. We have our favourites (!) but will advise those most suited to your requirements, based on our extensive testing and experience.
• To go with those readers, you`ll also need RFID antenna. Think of the RFID reader as the brain which tells the antennas what to do and the antennas as the arms which send out the radio frequency signals to the nearby RFID tags and receive information back.
• Our standard reader packs come with all the antennas, readers and cables you`ll need. So don`t fret.