Logit black box datalogger logit d102520 the logit black box is a compact and easy to use datalogger that provides a host of datalogging functions at a low price the unit simply plugs into the usb port of any desktop or notebook using the supplied cable and its ready to go the computer supplies all the power and control and there are no buttons on the unit making it easy to set up and usefeaturing a unique single channel scope mode the unit also has three sensor inputs compatible with