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PID Control Retrofit KIT for Rancilio Silvia w/ screw RTD sensor PID Temperature Control Retrofit KIT for Rancilio Silvia Espresso machine [KIT-RSRTD] - $149.50 : Auber Instruments, Inc., Temperature control solutions for
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Rancilio Silvia Mega-Mod part 4 Brew and Steam Control - Schneor Design and More
DIY Rancilio Silvia wifi-enabled PID : r/espresso
Introduction PID System - Rancilio-PID Manual
PID Retrofit KIT for Rancilio Silvia w/ pre-infusion [KIT-RSPb] - $199.50 : Auber Instruments, Inc., Temperature control solutions for home and industry