Schneider SR2E121B Description Description Schneider 24VAC, 8 DI / 4 RO module, Incl clock. Related products SCHNEIDER ATV28HU54N4 SCHNEIDER ATV31HU15N4 SCHNEIDER TSXDMZ28DTK SCHNEIDER TSXDSY32T2K SCHNEIDER TSXMFPP224K SCHNEIDER TSX1722028
