| Manufacturer | Siemens |
| Category | SIMATIC S7-400 (Legacy Range) |
| SKU / Product code | 6ES7421-7DH00-0AB0 |
| Weight | 0.766 kg |
| Country of origin | DE |
| Commodity code | 85389091 |
| Description | SIMATIC S7-400, SM 421 DIGITAL INPUT MODULE, OPTIC. ISOLATED, 16 DI, 24 - 60V UC, ALARM, DIAGNOSTICS |
