6ES7221-1BH32-0XB0 Siemens SM 1221 DC Original Brand New - Turll
Siemens - 6ES72211BH320XB0 - PLC Expansion Module, 16 Digital Sink/Source Input 24 VDC 130mA, S7-1200 Series - RS
6ES7221-1BH32-0XB0 - EMS Ireland
6ES7221-1BH32-0XB0 | SIEMENS SIMATIC S7-1200, Digital Input SM 1221, 16 DI, 24 V DC, Sink/Source: Amazon.com: Industrial & Scientific
SIEMENS 6ES7221-1BH32-0XB0 / 6ES72211BH320XB0 Simatic S7-1200 SM 1221 DC | eBay
6ES7221-1BH32-0XB0 Siemens | Siemens PLC I/O Module for use with SIMATIC S7-1200 Series, 100 x 45 x 75 mm, Digital, SM 1221, 24 V dc, SIMATIC | 787-7945 | RS Components