New - Gaggia Classic Pro/2019/Evo 2023 PID kit - 1/32DIN single display ## bulk ##

New - Gaggia Classic Pro/2019/Evo 2023 PID kit - 1/32DIN single display ## bulk ##

excluding VAT

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Stock situation:
  Silver case : Plenty of them
  Black case : Plenty of them
  TopBox with logo : Plenty of them
  TopBox with gauge hole : Plenty of them
  No case : Plenty of them


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Our PID kits now support the Classic Evo Pro and Classic Evo 2023 - see Variant info below.

TopBox PID kits:  If you order a TopBox mount (either style) along with our Brew Pressure Gauge within the same order, WHEN TOPBOX STOCK ALLOWS we will ENDEAVOUR to ship a "TopBox (with gauge hole)" regardless of which style TopBox you order.  Please contact us via chat if you don't wish for this to happen.

PID mod kit, including brew and steam control, with all parts and instructions required to install within your Gaggia Classic Pro/2019 /Evo 2023 machine.

This kit is suitable for the new style Gaggia Classic espresso machines made between 2018 and 2023.  If you examine the label on the bottom of your machine you should find one of the following model codes:

  • RI9380/?? - 120V, US "Gaggia Classic Pro" (eg RI9380/46 and other RI9380/?? machines)
  • RI9480/?? - 230V, EU "Gaggia Classic 2018/2019" (eg RI9480/11 and other RI9480/?? machines)
  • RI9380/?? - 120V US "Gaggia Classic Evo Pro" from 2023 onwards
  • RI9481/?? - 230V, EU "Gaggia Classic Evo 2023" from 2023 onwards 

The manufacture date of these machines is typically during 2018 or later - this date is often also shown on the serial label on the base of the machine in [week no.]/[Year] format (such as 33/2019 - for week 33 of 2019).  

If you have any of the models shown below (typically manufactured prior to 2018), then you need to select the alternative kit for the original Gaggia Classic

  • RI8161/??
  • RI9303/??
  • TYPE: SIN035 (Classic)  - but check with us if you don't see an RI number or date also, as the SIN035 can apply to almost all Classics.

VARIANTS:   RI9380 / RI9481 - Classic Evo 2023 :  If you have a Classic Pro Evo or Classic Evo 2023 then please ensure you check whether or not you have individual connectors to each front switch (ie 4 individual white connectors with their own wires), OR you have the new style monobloc connector per switch (one larger white connector with 4 wires going into it).  If you have an early Evo 2023 model and it has 4 individual white connectors to each front switch, then please select the Classic 2019 version. See here for more information and images of the different connector types.  If in doubt please contact us via chat. If no variant is chosen then we will assume Classic 2019 - so please ensure that if you have a Classic Evo 2023 with monobloc connectors you select the Classic Evo 2023 variant.

If in any doubt concerning the variant then be sure to select “Monobloc switch connectors” to receive the additional parts required. If you don’t have Monobloc connectors then you simply won’t use them.

We provide a 12 month warranty on all parts within the PID kits, provided that one of our aluminium or TopBox enclosures is used.  Use of a 3rd party enclosure will invalidate our warranty.


RI9403 - Classic 2015 / Classic V2:  Unfortunately none of our PID kits are suitable for the EU Gaggia Classic 2015-2018 model (with stainless steel boiler, and NO solenoid valve / vent tube and the eco timer that automatically powers the machine off after use) - model number RI9403/18 or RI9403/11

If you have ANY doubts as to whether your machine is suitable or which kit to purchase, please email a photo of your serial/model label and a photo of the inside of the machine (lid off) to us for confirmation.


This PID kit controls BOTH brew temperature and also steam temperature (and hence pressure).  The brew temperature is tightly controlled by the PID algorithm, and the steam temperature is controlled in a more basic fashion which is similar to that of the standard thermostat - though as the steam temperature can be adjusted, this will also adjust the steam pressure.

PREINFUSION is NOT a function of this PID kit.  In our experience, the best way to add variable pressure preinfusion to a Gaggia Classic is through the use of a pump dimmer mod (ideally with a brew pressure gauge).  We are aware that other kits include options for preinfusion - though we do not provide similar functionality, as this can easily be replicated by simply turning the brew switch on for 5s, and then off again for a few seconds, and then on again for your main extraction (obviously you can adjust the 5s and pause time periods to vary the preinfusion as much as you wish).

How Difficult is it to fit, how long will it take and what tools do I need?

We are frequently asked "How complicated is the installation?" - and the only real answer is that if you are competent with basic workshop tools, and can follow written instructions and photographs then you should be able to install it.  Installation usually takes most people around 2-3hrs and requires only basic tools such as:

  • A medium flat-bladed screwdriver
  • A medium cross-head screwdriver
  • A 17mm spanner/wrench or adjustable spanner/wrench (or alternatively needle-nosed pliers)
  • A 4mm Allen Key / Hex tool
  • Some scissors or wire cutters
  • Some rubbing alcohol or multi-surface cleaner, and a cloth

For the avoidance of doubt - no soldering is required, no cutting of the case, no cutting of wires - and the entire kit can be deinstalled and the machine reverted back to standard (with no sign of the kit being fitted) should you ever want or need to.

I've installed a PID and measured my brew temperature but it seems low...

This kit contains:

Our PID kits contain everything you need, except for the few basic tools that are shown as being required on the "Description" tab:

Main components:

  • A Shades of Coffee branded 1/32DIN (single display) PID controller (that can be configured by the end-user for C or F)
  • A Shades of Coffee custom made Pt100 sensor (three wire, class A sensor, with 75cm lead wires)

One of the following optional PID mounting components:

  • A black Shades of Coffee 1/32DIN aluminium enclosure with all relevant cut-outs, wiring grommet, and super sticky double-sided mounting tape
  • A silver Shades of Coffee 1/32DIN aluminium enclosure with all relevant cut-outs, wiring grommet, and super sticky double-sided mounting tape
  • A black Shades of Coffee TopBox PID mounting system with logo (gauge hole can be exposed) - as shown in detail here
  • A black Shades of Coffee TopBox PID mounting system with exposed gauge hole - as shown in detail here
  • No mounting case

Brew components:

  • All wires, premade to required but generous lengths and preterminated with connectors
  • 40A Brew SSR with mounting screws

Steam components:

  • All wires, premade to required but generous lengths and preterminated with connectors
  • 40A Steam SSR with mounting screws


Ancillary components:

  • Cable ties
  • Thermal paste (for SSRs and Pt100 if desired)
  • Earthing wire for enclosure (f relevant*)
  • Spiral wire wrap (if relevant*)
  • Cable grommet for Classic case (if relevant*)
  • Test resistor for possible diagnostic use
  • Spare fuse

* the TopBox doesn't require an earth wire or cable grommets

A very detailed 70+ page installation and user guide to installing, setting up and using the PID controller on your Gaggia Classic.  This guide includes many detailed photographs, gotchas, and trouble-shooting tips.  It is constantly updated to provide answers to common installation and use questions.

You can see a few sample pages of the (original Classic) manual here.

NOTE that once you have bought this kit and checked out, the installation and use manual will be sent to you as a PDF digital download - so you can start reading.

DISCLAIMER:  The installation of any of our parts or kits, and any modification of any espresso machines undertaken by reference to our installation and/or user guides, should only be conducted by persons with proper electrical safety knowledge who are capable and qualified to undertake such work and modifications.  Many of the components within espresso machines operate at high temperature, high pressure and with mains electrical voltages at high current in the presence of water – any of these could cause serious personal injury, shock, burns, fire, explosion, other property damage and possibly death.  We shall hence not be liable for any damage to property, personal injury or other loss caused by the improper or incorrect use of the aforementioned installation and/or user guides or the provided kit(s) or any of those kit’s component or constituent parts.  By commencing installation of our kit(s) you agree to accept all liability associated with the modification of your espresso machine, and agree to hold us in no way responsible or liable for any loss, damage or injury howsoever, wherever or whenever caused.  You further agree to indemnify us and our agents, officers, directors and employees, immediately and on demand, against all claims, liability, damages, costs and expenses, including legal fees, arising out of any installation, use, misuse or failure of any of our kits or component parts thereof.

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