Sold by 3 suppliers, from €4.24 to €5.61. The lowest listed price is DigiKey at €4.24. Once shipping, VAT and customs duty are added, the cheapest delivered is RobotShop at about €13.51 — DigiKey lands at about €35.09. Prices last checked on 2026-09-16.
Delivered cost is an estimate for a single item shipped to mainland France; the seller's checkout is authoritative.
Estimate for a single item delivered to mainland France, shipped from outside the EU: customs duty and clearance fees may apply and are charged by the carrier.
3 offers for this product
Save up to €0.52 — cheapest in-stock offer at €5.09 incl. VAT.
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Also available second-hand on eBay
RFID Radio frequency identification sensor WS1850S 13.56MHz frequency NEW
New · sold by lovesell2013 · ships from CN
Imported from outside the EU — duties and VAT included in the delivered cost; customs formalities and delays are not
Third-party listings on eBay, matched to this product by its part number or title. Robotitem neither sells nor warrants these items: condition, stock and lead times are the seller's, and a listing disappears once sold. Delivered cost includes the seller's actual shipping.
Specifications (automatically extracted)
Mechanical
Weight
26 g
Description
Description Unit RFID2 is a radio frequency identification (RFID) read/write unit based on the 13.56MHz frequency band. It integrates the WS1850S chip and complies with the ISO/IEC 14443 Type A/B standard, supporting data read/write operations for RFID cards such as MIFARE and NTAG series. The unit communicates via the I2C interface, has a read/write distance of less than 20mm, and features a LEGO-compatible mounting hole design, making it easy to integrate into creative structures or secure with screws. It is suitable for access control systems, identity authentication, data logging, and other application scenarios that require information verification. Features Core Chip: WS1850S Operating Frequency: 13.56 MHz Supported Standards: ISO/IEC 14443 Type A/B Communication Interface: I2C Read/Write Distance: < 20mm 2 x LEGO-Compatible Mounting Holes Development Platform UiFlow1 UiFlow2 Arduino IDE Includes 1 x Unit RFID2 1 x HY2.0-4P Grove Cable (20cm) Applications Smart home access control system Vehicle management Intelligent transportation Smart bookshelf Specifications Specification Parameter Read/Write IC WS1850S Operating Freq 13.56MHz Communication Interface I2C @0x28 Supported Prot ISO/IEC 14443 Type A/Type B Product Size 48.0 x 24.0 x 8.0mm Product Weight 6.0g Package Size 138.0 x 93.0 x 16.0mm Gross Weight 11.3g Learn and Documents → DOCUMENTS
