Slim Proximity Card 125 kHz (type EM) / Printable

• ✓ Standard Wiegand 26-bit format for universal compatibility
• ✓ TK4100 EM chip operating at 125 kHz frequency
• ✓ Compact 3.4 x 2.1 x 0.004 inch CR80 standard dimensions
• ✓ Fully printable on both sides for complete customization
• ✓ Durable PVC construction for long-lasting performance
• ✓ Safe perforation area without affecting antenna or chip