BL2016S84211 BL20-2AI-I(0/4...20MA) BL20-2DI-120/230VAC-P BL20-2DI-24VDC-P BL20-2DO-R-NO BL2032 BL2-036-S430-55/2 BL203STBWX25PX BL203STBYX25PX BL2040