Amazon.com: Ascaso Dream PID Programmable Home Espresso Machine w/Volumetric Controls, 120V, Walnut (Love Red): Home & Kitchen
You can never have too many PID controllers
PXR3 for Coffee Espresso machine PID control
What's a PID Controller in an Espresso Machine?
PID Retrofit KIT for Gaggia Classic Pro & Classic & Home PID Temperature Control Retrofit KIT for Rancilio Silvia Espresso Machine [KIT-GG] - $139.99 : Auber Instruments, Inc., Temperature control solutions for