Description
HID® Signo™ 40 Reader – 40NKS-00-000000 (Wall Mount, Pigtail)
The HID Signo™ 40 Reader (40NKS-00-000000) is a full-size wall-mount access control reader designed for standard commercial door installations. Built to mount over a single-gang electrical box, it offers a larger read surface, flexible credential support, and modern multi-technology compatibility for evolving access control environments.
As part of HID’s advanced Signo platform, the reader supports 125 kHz proximity credentials, 13.56 MHz smart cards, and mobile access technologies including Bluetooth® and NFC. This makes the Signo 40 an excellent upgrade path for organizations replacing older HID readers while preparing for higher-security smart credential deployments.
Key Features
- Supports 125 kHz proximity, smart cards, and mobile credentials
- Bluetooth® and NFC mobile-ready functionality
- Compatible with OSDP and Wiegand communication protocols
- Wall-mount reader designed for standard single-gang installations
- Pigtail connection simplifies installation flexibility
- Larger read surface than mullion-style readers
- Designed for enterprise and commercial access control systems
- Modern replacement option for legacy HID readers
- Supports phased credential migration strategies
- Professional-grade HID Signo platform technology
Ideal Applications
The HID Signo 40 is commonly used in:
- Commercial office buildings
- High-traffic entry points
- Multi-tenant facilities
- Healthcare and education campuses
- Enterprise access control systems
- Facilities transitioning from prox to smart credentials
- Modern mobile credential deployments
- Wall-mount door frame installations
Its larger form factor provides an expanded read area compared to slimmer mullion-style readers such as the HID Signo 20.
Credential Compatibility Questions
Not sure which credentials work with the HID Signo 40 Reader? Compatibility depends on reader configuration, credential technology, and your access control system settings. The Signo 40 is commonly deployed with HID Prox®, iCLASS®, Seos®, MIFARE®, DESFire®, and mobile credential environments.
- Using HID Prox cards or fobs? The Signo 40 can support many 125 kHz proximity credentials when configured for legacy compatibility.
- Upgrading from iCLASS or smart cards? The Signo platform supports many 13.56 MHz credential technologies including iCLASS and Seos.
- Need mobile access? The reader supports Bluetooth and NFC mobile credential environments.
- Know your card format? Facility code, bit format, and card numbering must match your access control system.
- Replacing older HID readers? The Signo 40 is commonly selected as a replacement for HID R40 and RP40 readers.
If you are unsure what credentials your system uses, ID Enhancements can help identify compatible cards, fobs, formats, facility codes, or replacement reader options.
Contact our team at 1.800.279.4560 for assistance with credential matching and HID reader replacement projects.
Credential Options
The HID Signo 40 may be used with multiple credential technologies depending on reader configuration and system compatibility.
- 125 kHz Proximity Cards & Fobs: Common for legacy HID Prox systems.
- 13.56 MHz Smart Cards: Supports iCLASS®, Seos®, MIFARE®, and DESFire® technologies.
- Mobile Credentials: Allows smartphone-based access using Bluetooth and NFC.
- Custom Printed Credentials: Ideal for employee ID programs and branded access badges.
- Comparable Credential Options: ID Enhancements can help identify cost-effective compatible credentials for many HID environments.
Upgrade from Legacy HID Readers
The HID Signo 40 is commonly used as a replacement for older HID R40 and RP40 readers. Upgrading to the Signo platform provides enhanced security, mobile credential capability, and broader credential flexibility while still supporting phased migration strategies for many existing systems.
Why Buy from ID Enhancements?
With over 30 years of experience in access control credentials and reader technology, ID Enhancements provides competitive pricing, fast shipping, and expert support for HID reader upgrades, credential compatibility, and system integration assistance.
Common Questions Before Ordering
- Will this reader work with my existing HID cards?
Compatibility depends on credential technology and reader configuration. Existing HID Prox®, iCLASS®, Seos®, MIFARE®, or DESFire® credentials should be reviewed before ordering. - Can I use this reader with my current access control panel?
The Signo 40 supports Wiegand and OSDP communication protocols, but compatibility should always be confirmed with your controller or panel. - Is this the same size as the HID Signo 20?
No. The Signo 40 is the larger wall-mount version while the Signo 20 is a slimmer mullion-style reader. - Do I need new credentials when upgrading?
Not always. Some installations can continue using existing credentials while others may choose to upgrade to smart cards or mobile access solutions. - Looking for a terminal strip version?
The terminal strip model can be found here: 40TKS-00-000000
Related Reader Options
Need a slimmer reader for narrow door frames or tight spaces? View the HID Signo 20 Reader .
