The system can be dialed in to prevent OTB newb moments.
The first gauge shows pressure at the lever and the second shows the pressure going to the caliper.
[https://www.vitalmtb.com/photos/features/Crazy-Bike-Tech-from-Taichung-Bike-Week,12690/Outbraker-Pro-Brake-Pressure-Regulator,134295/sspomer,2]