cy-emcc EM clamshell card Pre-Printed With Sequential Serial Number product specifications Product Features short range detection compatible with cy-mf01 reader clamshell encapsulation no battery required specifications Frequency Band Operating Frequency Operating Temperature Chip Supported Reader Read distance Transmission Mode Data Retention Shell Material Color Finish Card Size Dimensions Weight low frequency (LF) 125 KHz -10°C ~ 70°C EM4100 EM Proximity Reader (CY-EM01) 1 ~ 3 CM Passive (battery-free) > 10 yrs ABS (PVC surface Layer) White Matte CR80 85.6 x 54 x 1.8 MM 10 G