Length (mm): 128Width (mm): 62Height (mm): 25Main Colour: RedCountry of Manufacture: ChinaMPN: MD0273Minimum Operating Temperature: -40CMaximum Operating Temperature: 85CNumber of Items: 1Input DC Voltage: 5VMounting Hole Size: M3Mounting Dimensions: 119/52mmType: Solid stateChannels: 8AC Rating: 2A 240V ACFormat: TTL VoltageThis module is ideally suited to controlling larger voltages with project. This is a octo-channel relay module which can be used to activate up to eight separate 240V AC. This allows you to build in device control, operating remote lights or triggering systems when the module is supplied the signal.The screw terminals are well labelled and definition of the units function is shown underneath.