All our controllers with MAP input have an internal sensor. There is a hose barb fitting on the back of the controller to connect a rubber hose from a boost pressure soruce (Or vacuum source in the case of the VC-A10)
The VC-MAF can work with 0-5v hot wire MAF type sensors or karman vortex frequncy based MAF sensors. There is a 3 position switch on the controller that lets the user select the type of MAF sensor.
Best regards,
Dan