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The HID GLOBAL CORPORATION 20NKS-00-00004M is the Signo 20 smart card reader, a compact access control reader designed for credential-based entry systems. Finished in black and silver, this unit connects via a pigtail wiring harness, making it suitable for direct integration into access control panels and door controllers. The Signo 20 is intended for installation by licensed low-voltage or access control technicians in commercial and light industrial environments where secure, card-based entry management is required.
The Signo 20 reader fits into modern access control deployments where a wall-mounted or door-frame-mounted smart reader is needed. Its pigtail connection style supports integration with a wide range of access control system wiring configurations. This model is sold as a single unit and is appropriate for new installations as well as retrofit projects upgrading legacy readers to current smart credential technology.
Designed as an OEM-style smart card reader for use in commercial access control systems requiring a Signo 20 series pigtail-connected reader.
Installation should be performed by a licensed low-voltage or access control technician. De-energize the access control panel and any associated door hardware before making wiring connections. Follow local codes and the access control system manufacturer wiring diagrams when connecting the pigtail harness. Confirm credential compatibility with the installed access control platform before commissioning.
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