This Manual Paddle version of Strada allows progressive control of water flow, and pressure from a mechanical internal valve. This machine has dedicated pressure gauges for each brew group enabling the barista to read the pressure throughout the extraction, to ensure the perfect espresso. This Strada also includes a hot water economizer for energy efficiency and individual boilers to allow custom temperature for each brew group. This machine will really give the barista control. You can get Electronic Paddle and Manual Versions of this machine.