***spare part*** SIPLUS S7-300 SM 326F DI8 NAMUR based on 6ES7326-1RF00-0AB0 with conformal coating, 0…+60 °C, Just like the CPU, the digital input modules are also protected against extreme ambient conditions. Due to the 100% conformal coating they can withstand biologically, chemically and physically active substances, condensation, frost, and corrosive gases. Regardless of the conditions, your digital signals are reliably recorded.