Siemens SM321 Simatic S7, 6ES7 321-1BH02-0AA0 Digital Input Module

PLEASE REVIEW: We would ask that potential buyers please view the photographs carefully, and understand what you are buying. All questions must be submitted PRIOR to your purchase. *Your purchase includes a 30 day warranty.* We cannot negotiate price or terms after the sale has closed. Payment is expected within 24 hours please. We appreciate your consideration! (bcd: bo2-1-a).