BooKoo | Analog Pressure GaugeDescription Details Other Info ANALOG PROFILING Featuring a custom dial with up to 12 BAR pressure readings and an espresso zone sweet spot, the BooKoo Pressure Gauge features a G1 8" thread to fit the BooKoo T Splitter, and provides direct visual feedback of your profiling to complement the app connected graphing of the Espresso Monitor. Features G1 8" thread, 0 12 bar analog pressure gauge with custom dial face. About BooKoo Created by a group of