All drains in new pools are required to be VGBA compliant. These are safety drain covers that prevent anyone from being sucked onto the drain. These are mandatory primary safety devices that you should be getting.
Then the pool industry pushes a safety vacuum release system in their more complicated and expensive pumps as a secondary safety system. The problem is the sensor will false alarm and shutdown your pump unexpectedly. It may be hours or days before you notice it. So if you get the pump understand it will probably be a PITA.
For more on VGBA drains you can read...
https://www.poolsafely.gov/wp-content/uploads/2016/08/Pool-Safely-FAQ.pdf
http://apsp.org/portals/0/PDFs/Summary%20of%20the%20Act.pdf
http://apsp.org/Portals/0/PDFs/Consumer%20Safety%20Brochures/Layers%20of%20Protection.pdf
