6ES7193-1CH00-0XA0 Refurbished Siemens Terminal module

6ES5497-4UA12 Refurbished Siemens Analog input module

6ED1052-2MD00-0BA6 Refurbished Siemens Programmable Logic Controller (PLC)

6ES5420-4UA13 Refurbished Siemens Digital input module

6ES5943-7UB21 Refurbished Siemens Communication processor

Siemens - 6ES7 321-1FF01-0AA0 - DIGITAL INPUT MODULE

6ES7953-8LG11-0AA0 Refurbished Siemens SIMATIC S7

6ES7231-5PD30-0XB0 Refurbished Siemens Analog input module