Lockly - PGA803P - Proximity Keyfob - MIFARE - 13.56MHz

Lockly Guard Fob Key is a small and portable contactless access tool that provides tripleauthentication and data transfer (ISO/IEC DIS9798-2). With its high-speed data transmission and signal processing, users can complete authentication within 100ms, reducing the time you spend RFID/fob key reader. It can operate multiple cards within the read-write range at the same time, without causing data conflict with other cards. By using an unchangeable unique serial number, the RF data channel uses mutual random number response authentication, data encryption, and message authentication checks that prevent various cracking, tampering, and duplication. Specifications: Product Dimensions 1.58" x 1.26" x 0.17" (40.21 x 32 x 4.35mm)  Color Black Credential Technology MiFare S50, 13.56 MHz Standards IS 014443A Data Transfer Rate 106 kbit/s Memory Storage 1K byte EEPROM storage space Storage Life Data can be stored up to 10 years Re-write Life 100,000 times Maximum Read Range 0.