April 28, 2026
- This low-frequency (LF) passive clamshell RFID card EM 4450 is waterproof and wallet-sized. It provides a tested read range up to 130 cm (50 in.) and has a slot to attach a lanyard. Its tested read range is up to 130 cm (50 in.). The RFID card offers true anti-collision properties for multiple tag detection. It is commonly utilized in ticketing, high-security hands-free, industrial or manufacturing automation, and prepayment devices.
- Plastic 125khz passive Rewritable RFID EM4450 Contactless card
Type RFID EM4450 Contactless card Operating frequency 125 ± 6 kHz Capacity 64 bits Data coding type Manchester Tested read range Up to 130cm (50in.) depending on RFID reader and data coding type Multi-detection Yes Read quantity (max.) Determined by mode tags/sec Material ABS , PVC or PET Color White – can be silk screened or offset printed on PVC side Compliance IC EM4450 Operating specifications Waterproof Resisting to immersion in salt water, alcohol, oil, 10% HCL, ammonia and avoiding shock and vibration Storage temperature -55 °C to 100 °C Operating temperature -40 °C to 85 °C Dimension 85.6 mm × 53.98 mm × 1.8 mm Weight 9 g ± 0.5 g 
The EM4450 is a CMOS integrated circuit intended for use in electronic Read/Write RF Transponders. The chip contains 1 Kbits of EEPROM which can be configured by the user, allowing a write inhibited area, a read protected area, and a read area output continuously at power on.
