Model number：IMPINJ B42
Antenna size ：8mm×22mm
IC chip ：IMPINJ Monza4
Memory: IMPINJ Monza 4QT(user memory 512 bits, EPC memory 128 bits)    
IMPINJ Monza 4E(user memory 128 bits, EPC memory 496 bits) 
IMPINJ Monza 4D(user memory 32 bits, EPC memory 128 bits)
Protocol：ISO18000-6C，EPC G2
Operating frequency：860~960MHz
Operating temperature ：-40 degree to 85 degree