While the 4-in-1 Sensor is compatible with Home Assistant, it may require some extra configurations to set up motion notifications. 

This may include hiding the binary_sensor created by Home Assistant and creating a new template for the notification sensor. It also looks like most Home Assitant users found it helped to use the _burglar notifications (0 or 8) for motion. The process is better described in this community thread.

If you have any other questions about the above, don't hesitate to reach out!