228 = Conductivity sensor - toroidal insertion/submersion
02 = Materials of construction: PEEK, standard temperature to 248 °F (120 °C)
20= Option : ⅝-11 UNC (EPDM gasket standard), requires mounting adapter
56=Cable Type : Shielded cable for improved EMI/RFI protection
04= Cable length : Integral 50-ft. (15 m) cable (for use with -54 and -56 options)
