HID Reader in Stainless Frame - The HID-SS is an HID Prox card reader designed to be mounted seamlessly next to any of Aiphone's stainless steel sub stations. The unit has an embedded HID compatible card reader with a standard Wiegand output to an access control panel. The HID-SS mounts directly to wall surface or to a 2-gang box. When surface mounting with a stainless steel sub, use either an SBX-2BH (Horizontal) or SBX-2BV (Vertical). If surface mounting the HID-SS by itself, use the SBX-2G.