Halley B1 is a device to record the data of electronical equipment. The product has the function of recording 3 channels of serial data and one channel of CAN bus data at the same time and saving the data in the internai memory in the form of log file. The data recording speed of B1 reach 200KB/S, which make it applicable for usage situations under various conditions. At the same time, Halley B1 has reliable power down protection function which can effectively prevent the loss and damages of data.Users are able to connect Halley with PC computers easily to obtain saved log files and carry out data analysis with the specified software either from AheadX or others.