Description This kit includes most of the parts needed to complete an installation on a Gaggia Classic Pro (NOT Gaggia Classic). The low voltage wiring kit means connecting the pressure sensor, screen, SSR and switches is just a case of plugging them in. You will need to fabricate your own high voltage wiring. PCB & SCREEN PROGRAMMED KIT INCLUDES Official Gaggiuino V4.0 PCB – STM32U585 4.3″ Touchscreen Low voltage wiring kit (Screen cable, SSR cable, Switch panel cable) Pressure Sensor (with custom quick connect harness) 2 x White O-Ring for Pressure Sensor Adapter Thermocouple K – M4 Transducer Barb Fitting (6mm stainless steel) T-fitting (6mm stainless steel) 4 x Hose Clamps Genuine SAECO silicone hose (12.5cm Length) SSR 40DA USB STLink Tool Options available. Dual Scales PCB. Only needed if you plan to add physical scales to your build. Populated dual Scales (HX711). This eliminates the need to purchase two HX711 boards, you still need load cells. ToFnLED Kit. Add water level monitoring and an RGB LED.