Based on this product's specifications, here are some alternatives and similar models
Surface Mount Housing VIDOS D600B1 — VIDOS D600B1 Surface-Mounted Enclosure
Summary description:
Surface mount housing VIDOS D600B1 is an external enclosure designed for mounting compatible VIDOS intercom or access control units. The D600B1 provides a surface-mounted alternative to flush installation, allowing devices to be installed on walls without recessing. It is intended for securing and protecting the unit, facilitating installation where in-wall mounting is not possible.