FLUKE HYDRA model 2620A data acquisition. This sale is for 1 unit. Both are in good physical condition and fully calibrated. Sn # 7034002 Sn # 7034003ITEMS INCLUDED: 1 set of software w/ manuals included, 1 null modem cables for pc connection, 1 power cords and 1 certificates of calibration w/ data. Company name will be updated on the certificate.NOTE: There are NO inputmodules. This is for the mainframe only.