The HID Signo 20 Reader (20NKS-00-000000) is a next-generation mullion-style access control reader designed for modern, secure, and flexible credential environments. Developed by HID Global, the Signo 20 combines advanced multi-technology support with a sleek, space-saving design—making it ideal for narrow door frames and high-security entry points.

Engineered to support multiple credential technologies, including 13.56 MHz smart cards, mobile credentials via Bluetooth®, and NFC, the Signo 20 provides a future-ready platform for organizations transitioning to mobile access. The “NKS” configuration includes a keypad for PIN entry, enabling dual-factor authentication (card + PIN) for enhanced security in enterprise, healthcare, and government facilities.

Built with HID’s Signature Series performance standards, this reader delivers enhanced encryption, secure communications, and advanced tamper resistance, ensuring data protection across the access control system. Its support for OSDP (Open Supervised Device Protocol) improves secure reader-to-controller communication, while also allowing for remote management and configuration.

The compact mullion form factor allows for easy installation on door frames, glass entries, and space-constrained areas, while maintaining a professional, low-profile aesthetic. With broad compatibility across leading access control platforms, the Signo 20 is a top choice for both new deployments and system upgrades.

Key Features

• 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.

Moreover, HID Signo Readers are simple to order and install, making the upgrade process easy for everyone.