Inside RFID for Automated Stock Counting
Scan hundreds of items in seconds and cut counting time in large warehouses by up to 80%.
Published
Inside RFID for Automated Stock Counting
RFID changes stock counting from scanning one item at a time to reading a whole pallet at once. This guide covers how it works, where it struggles, and how to plan a rollout that actually pays off in a large warehouse.
How RFID works on the warehouse floor
An RFID tag carries a chip and a tiny antenna inside the label. When it passes a portal reader or a handheld with an antenna, radio waves power the tag and it answers with its identity, so the reader collects every tag in range without a direct line of sight.
Hundreds of reads in seconds
The biggest win is counting a whole pallet or zone without unpacking items one by one. The system reconciles the reads against stock in real time and highlights the variances that need a closer look.
- Position antennas to cover the read zone, and test with the real products — liquids and metal included.
- Bind the tag EPC to the SKU and to Lot/Serial from day one.
- Define a variance review step so a wrong count is never silently overwritten.
What to watch before you install
Liquids and metal absorb or reflect radio waves, so always test with the actual goods. Some products need a different tag position or more reader power. Duplicate reads also have to be filtered in software, otherwise the count reports more stock than you own.
How to start cost-effectively
Most businesses start with the group that pays back fastest — high-value goods, fashion items in many sizes, or anything counted often — then expand once the results are visible. iStock Express runs barcode and RFID in one system, so you can compare both from the same data.
Let our engineers pick the right hardware and labels for your site
Send us a sample or describe your site and the iStock Express team will run the tests and report back before you invest.
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