The NE-SS and NE-SSR are vandal and weather resistant sub stations for Aiphone’s NEM, NDR, and NDRM Lamp Memory systems. The units are constructed of 12 gauge stainless steel. They can be flush mounted into a standard 2-gang box, or surface mounted into the SBX-2G. Each unit includes tamper proof screws and a tool for installation. The NE-SS has a stainless steel mechanical call button, and the NE-SSR features a red mushroom type button. Communication at the master is push-to-talk or handset, and communication at the sub is hands free.