The other type, so-called " proprietary" systems use their own wireless technologies which are often undisclosed - these tend to be very good at the task they are designed to do, but might not work directly with other systems.
The other type, so-called " proprietary" systems use their own wireless technologies which are often undisclosed - these tend to be very good at the task they are designed to do, but might not work directly with other systems. This doesn't necessarily mean that these systems should be avoided, since many of them offer other forms of integration via their own Cloud services or via third party integrations such as IFTTT.