DC 5V 3 Channel Relay Module Relay Expansion Board with Optocoupler Insulation Compatible 3.3V 5V Signal for Arduino
| Country | USA |
| Brand | Independently Published |
| Manufacturer | Independently published |
| Binding | Paperback |
| UnitCount | 1 |
| EANs | 9781719812344 |
| ReleaseDate | 0000-00-00 |