La Pavoni Giotto Style Grouphead Pressure Gauge - 5530011 From  £17.04

It is very easy for fitting ROCKET E61 group head.
And I can know correct pressure of porter filter.
Very good item!

GAUGE WORKS GREAT , FIT MY ROCKET APPARTAMENTO PERFECT , YOU WILL NEW A SMALL WASHER OR 2 TO USE AS A SPACER IN ORDER TO GET THE FACE CENTERED , SHIPPING WAS UNBELIEVABLE FAST AND EASY TO THE USA , DON'T BE AFRAID TO PURCHASE IF YOUR IN THE USA IT WAS AS EASY AS ANY OTHER PURCHASE YOU MAKE IN YOUR HOME LAND

I bought this gauge to install on my ECM espresso machine, it is useful to observe the pressure profile as the shot is drawn. I found the gauge easy to install but I needed an additional copper washer (not supplied, 10mm wide, 6mm hole, 1mm thick) to get the gauge orientation correct.
A useful and worthwhile purchase.

I installed the gauge on my Vbm domobar junior, works beautifully, and am very happy - though delivered gauge does not match faceplate in the picture

I added this to my Rocket Appartmento so I could set up the group head pressure. Quick delivery from order and a breeze to install. It's done the job superbly and a nice as on to the espresso machine.

This item has arrived swiftly and is of good quality. Can fit on mostly all E 61 group head that has a M6 screew on top of the portafilter head. Finaly I can monitor the real pressure of my infusion......thanks !!!!

A fantastic device that totally upgraded my appartamento. Now I can make precise adjustments to the grind and tamp. The result is a much better cup of coffee.

This is a great addition to an E61 group head. My Expobar office leva model only had a boiler pressure gauge

Not hard to fit.....but I was a little surprised not to get any instructions

I find the gauge useful for seeing how the infusion is going. Great to see the pressure rise as the shot progresses.

Thoroughly recommend this gauge it looks great and works well.