1) Operating Frequency: 134K
2)Operating Temperature:-40º C to +70º C
3)Data Maintenance:10years,EMS memory can be wiped or written over 100K times
4)Read and Write Range: 1cm to 10cm
5)125KHz Chip: EM4100, Hitag-1, Hitag- 2, Hitag-S, TK4100 
6)Diameter: 2mm, 3mm; Length: 8mm, 12mm, 15.5mm