10 pcs - 28448 Parallax Inc 28448 RFID Module

RFID TagsThese are passive read only RFID tags. They hold a unique 64-bit number that can be read by an RFID reader. The frequency and protocol must match the reader you are using.Unique 64 bit read only IDOperating Frequency: 125kHz ± 6kHzCommunication protocol: EM4100Recommended tag reader: RS 781-3061Applications: Access Control, Anti-counterfeiting, Asset TrackingClear Disc (RS 843-0800)Material: polyethylene and polyesterDimensions: 20 x 0.6mmOperating temperature range: -20 to +60°CEpoxy Disc (RS 843-0806)Material: Laminated EpoxyDimensions: 30 x 1mm, centre hole 3.2mm diameterOperating temperature range: -40 to +85°CSmall Epoxy Disc (Rugged) (RS 843-0793)Material: PPS and EpoxyDimensions: 12.4 x 2mmOperating temperature range: -25 to +85°CNail (RS 843-0803)May be hammered into woodMaterial: polyamid with glass fibreDimensions: 35.5 x 4mmOperating temperature range: -25 to +85°CFrequency: 125 kHzA range of low-cost RFID Reader modules and RFID Tags.