Our transponders are secured by coding and function according EM4102 and compatible transfer procedures. They are passive transponders without battery. Type “FinBlue” and “FinRed” compact, robust, transparent, trendy design, (dimension: 33x55x8mm). Package includes 5 peaces FinBlue and 5 peaces FinRed)

ATTENTION: transponders offered in this webshop are only working together with RFID-LEGO-Sensor^®!