Operating Frequency: 125KHz Chip: EM4100, EM4102 or its 64Bit compatible chip TK4100, etc Sensing distance: 2~10cm Working temperature: -20℃~+80℃(-4℉~+176℉) Packaging materials: ਪੀ.ਵੀ.ਸੀ, ਏ.ਬੀ.ਐੱਸ, ਪੀ.ਈ.ਟੀ, ਪੀ.ਈ.ਟੀ.ਜੀ, Paper Dimensions: Thin cards 85.5×54×0.88mm Thick cards 85.5×54×1.80mm Encapsulation process: laminated, self-adhesive, ultrasonic encapsulation