HID
SKU: 20NKS-00-000000
HID 20NKS-00-000000 Signo 20 Proximity Reader
Wiegand proximity reader for EM 32-bit cards, surface mount
Overview
Manufacturer-verified compatible cameras, recorders, mounts, accessories, and licenses for this product. Adjust quantities and add the entire bundle to your cart in one click.
Overview
Questions about this product? Free pre-sales support from a senior specialist — product questions, compatibility checks, BOM quotes, price confirmation — typically answered within one business day. Need camera placement or system design work? Engineering time is $175 per hour (qty 1 = 1 hour). Hardware buyers get up to one hour ($175) credited back on their order.
Discontinued — No Longer Available New
This model has been discontinued by HID. Shop current HID products → or see the recommended alternatives below.
The HID-920-PMNN is a wall-mounted proximity card reader engineered for access control environments requiring credential flexibility, mobile integration, and enterprise-grade security. This dual-frequency reader supports both 13.56 MHz (high frequency) and 125 kHz (low frequency) credentials, enabling seamless deployment across mixed credential environments while accommodating forward migration to mobile-based access systems. The reader communicates via Open Supervised Device Protocol (OSDP) for vendor-independent system interoperability, making it suitable for corporate offices, healthcare facilities, educational institutions, and government buildings where scalability and credential investment protection are priorities.
The HID-920-PMNN (often searched as HID 920 PMNN) eliminates the need for separate readers in mixed-credential environments through its dual-frequency architecture. OSDP support ensures long-term interoperability across evolving access control platforms, protecting infrastructure investments against vendor lock-in. The reader's mobile-ready configuration supports emerging BYOD (Bring Your Own Device) security strategies, allowing organizations to transition credential ecosystems without replacing existing hardware. Backward compatibility with legacy credential technologies ensures that current iCLASS and MIFARE deployments continue functioning while new mobile credentials are introduced incrementally. This staged migration approach reduces deployment risk and capital expenditure during system modernization.

The HID-920-PMNN represents a strategic choice for organizations planning credential ecosystem transitions. During integration planning, the dual-frequency capability delivers measurable operational efficiency—eliminating the need for separate 13.56 MHz and 125 kHz readers reduces installation complexity, hardware footprint, and wiring labor on multi-door access control systems.
Technical Highlights:
Deployment Considerations:
For integrators managing deployments with mixed legacy and modern credential bases, the HID-920-PMNN eliminates the need for parallel reader infrastructure. The combination of OSDP support, energy efficiency, and environmental certification makes this reader suitable for enterprise-scale roll-outs where operational cost control and vendor interoperability are procurement drivers.
Manufacturer-verified compatible cameras, recorders, mounts, accessories, and licenses for this product. Adjust quantities and add the entire bundle to your cart in one click.
Support services and planning resources for commercial surveillance, access control, and infrastructure deployments.
Fixed scope • Fixed price