CT-TAG03-TK4100 TAG03 EM41xx 125KHz series (Blue)

Frequency: 125KHZ format
Chip: TK4100
Reading distance: 2~10cm;
Material: ABS
Working temperature:-10-50 °C
Serial numbers: Laser Number (various different numbering formats)
Size: 41*33*4.3mm
Weight: 4.5g