https://distance-surveillance.ca/camden-cm-45-4-1-2”-push-to-lock-square-faceplate
Camden Door Controls CM-45/46 Series all-active switches are heavy-duty, ADA-compliant door controls. The 4 1/2” square faceplates are stainless steel or aluminum, and the assemblies are designed for easy installation.
Both series mount to standard single gang or double gang electrical boxes. CM-45 series is sold as a complete assembly, which is mounted to the in-wall box (or surface box) using stainless steel Allen screws and a hex key (included with the switch). Access to the mounting screws is through small holes in the front of the faceplate. This provides for tamper resistance, while maintaining an attractive overall appearance.
CM-46 series is sold as a two part assembly. The rear assembly is mounted to the in-wall box (or surface box). The front faceplate is then screwed to the rear assembly using either standard or security screws (included with kit).
The SPDT (and optional DPDT) switches are UL/CSA approved, and rated 15 amps @ 30 VDC. The push switches are offered with different graphics, and in various architectural finishes. Weather resistant, and water tight configurations are also available.