HDL-MSD04.40 4 Zone Dry Contact Module 4 Zone Dry Contact Module, accepting dry contact inputs, and supports both switching and dimming. Parameters Model HDL-MSD04.40 SKU 423001 Bus Power 10 mA Width 45 mm Height 45 mm Depth 16 mm Weight 45 g Material CustomOne CustomTwo CustomThree CustomFour CustomFive Discount category A 1 pcs in stock in stock in stock You can buy these goods through registered HDL partner. Question to product