HID Signo 20 Multi Frequency Card ReaderThe HID Signo 40 range of wall mounted readers are designed with versatility in mind, offering support for a range of credentials operating at 13. 56Mhz and 125kHz as well as Bluetooth support for HID Mobile Access. All HID Signo readers support Open Supervised Device Protocol (OSDP) as standard for secure bidirectional communication and remote management. Security is ensured through a multi layered system including EAL 6+ cryptographic keys and