A bit about everything: Gaggia Classic. Controlling temperature using PID. | Gaggia classic, Gaggia, Home coffee machines
Gaggia Classic Pro/2019 complete wires and controller PID kit
PID KIT for Gaggia Classic Pro & Classic & Home w/ pre-infusion [KIT-GGP] - $199.50 : Auber Instruments, Inc., Temperature control solutions for home and industry
Gaggia Classic Pro customised with PID, 9 Bar Spring and enclosure (All colours available)
A bit about everything: Gaggia Classic. Controlling temperature using PID.
Gaggia Classic Pro PID kit in action | PID controller mod - YouTube
Modifying my Gaggia Classic Espresso machine - Cal Bryant