Based on this product's specifications, here are some alternatives and similar models
Motion sensor Steinel IS3180 KNX V3 AP square surface-mounted
Summary description:
Steinel IS3180 KNX V3 AP is a square surface-mounted motion sensor for KNX building automation. It provides presence and motion detection for lighting and HVAC control, with KNX bus integration and surface (AP) installation format. Suitable for commercial and residential spaces to automate lighting, energy management and occupancy-based control.