This is a SPST-NO and single in-line printed circuit board mount SSR, provides DC output switching in a high density package. Have three input voltage specifications: 5VDC, 12VDC and 24VDC. Output load voltage is 50VDC and 100VDC. KS27 enables weak against strong electrical isolation and control, and level conversion. Can easily connect with computer and a variety of digital circuit interface.