Omron AC Adapter works for many of the upper arm blood pressure monitors for convenient replacement of a lost or broken AC Adapter. This adapter is only compatible with OMRON Blood Pressure Monitor models: BP5250, BP5350, BP5450, BP7200, BP7250, BP7350, BP7450, BP742, BP742N, BP761, BP761N, BP785, BP785N, BP786, BP786N, BP7911T, HEM-711AC, HEM-711DLX, HEM-712C, HEM-712CLC, HEM-780 and HEM-790IT. This adapter is only compatible with OMRON TENS Unit models: PM601.