The HID® Signo™ 40 White Reader is designed to sit neatly on a standard wall switch box, making it a practical choice for access control upgrades where a clean, unobtrusive installation matters. A surface detection feature automatically recalibrates the reader and optimises read range performance depending on the mounting surface — so you get consistent, reliable reads without manual adjustment.

Compatibility is a genuine strength here. The Signo 40 supports HID Mobile Access® via native Bluetooth and NFC, and works across multiple card frequency technologies, which means migrating from a legacy system causes far less disruption than you might expect. Flush mounting is enabled through a terminal block wiring arrangement, and an Intelligent Energy Saving Mode reduces power consumption when the reader is idle — useful in larger deployments where energy costs add up.

Fully compatible with HID Reader Manager for remote configuration and monitoring. This model connects via pigtail and is finished in white. Also available in black. Manufacturer part number: 40NWS-00-000000.