Eaton 182918 M30C-FD-R Pushbutton planar, round, chrome-plated Red 1 pc(s)

Button diameter: 35.39 mm; Connection (components): Screws; Factory colour: Red; Front panel thickness: 5.5 mm; Functions (switches): momentary; IP rating: IP67, IP69K; Max. temperature: +70 °C; Min. temperature: -25 °C; Product size (height): 46 mm; Product size (length): 28.95 mm; Product size (width): 36 mm; Switch/button features: planar, round, chrome-plated

Price: £ 22.99 from Conrad Electronic