How can I process low voltage signals? Permanently deleted user March 20, 2023 08:59 Updated Follow The SW-UMR200 has 2 potential-free inputs (7,5-50V DC / 7,5-230V AC) and 2 potential-free relay outputs (changeover contacts) to integrate devices such as alarm systems, door locks, door bells, pumps etc. Related articles Does digitalSTROM offer a driver with 10V input? How do I find the dSS? Browser warning when opening log files Can I integrate a weather station? Does the power consumption message work at device level?