Siemens S7-300,8AI，6ES7331-7SF00-0AB0 模块

SIMATIC S7, ANALOG INPUT

SM 331, OPTICALLY ISOLATATED,

8 AI THERMOCOUPLE/4 AI PT100,

F. SIGNALS F. HAZARDOUS AREAS,

CAPABLE OF DIAGNOST.,PTB-TESTED

1 X 20 PIN