SEN-21274 Reader?

Is there a hobby-friendly reader for the SEN-21274 dynamic tag like the RC522 based readers for MIFARE tags?

Sure - we carry https://www.sparkfun.com/products/15191 and https://www.sparkfun.com/products/14066

Their ranges can be greatly increased with an antenna, we have these https://www.sparkfun.com/categories/557 right now :slight_smile: