Pigtail Wiring Option Highly Versatile - Support for the widest range of credential technologies, including HID Mobile Access via native Bluetooth and Near Field Communication (NFC) capability. Also features Apple’s Enhanced Contactless Polling (ECP) to support credentials in the Apple Wallet. Unparalleled Performance - Ultra secure storage of cryptographic keys on certified secure element hardware, plus a new surface detection feature that allows the reader to automatically recalibrate and optimize read range performance. Connected to the Future - All readers include out-of-the-box support for Open Supervised Device Protocol (OSDP) for secure bidirectional communication. Each reader is also designed to be connected and managed remotely without “sneakernet” or the need to be physically touched. HID Signo Reader 20 - Designed for applications requiring a narrow card reader. The HID Signo Reader 20 is a founding member of the Signo platform. Offering a truly dynamic approach to secure electronic access control, HID Signo Readers are designed to be highly versatile, powerful, and connected for the future. A perfect fit for door applications requiring a narrow card reader, the HID Signo Reader 20 supports an unparalleled range of different credential technologies in a variety of form factors including cards, fobs and mobile devices.