Based on this product's specifications, here are some alternatives and similar models
ACO CDN-P-S2 NT Surface-Mounted Double Frame for CDNP5/6, CDNC/B, CDNA, Acid-Resistant Steel
Summary description:
The ACO CDN-P-S2 NT is a small, double surface-mounted frame designed for mounting ACO door station modules, including CDNP5/6, CDNC/B, and CDNA series. Constructed from high-quality acid-resistant steel, this frame ensures durability and resistance to harsh environmental conditions. It provides a professional and secure installation solution for intercom systems in residential or commercial buildings.