Check the listing for details. Stevens A/F Logger Model 8901 And Other Pieces. Condition: Used. Listed at 69.99 USD. This Stevens A/F Logger Model 8901 I/O Board is a high-quality data acquisition and logger device that is perfect for use in various industrial and commercial settings. With its compact size of approximately 8 3/4" x 6 3/8" x 1 3/4" T, it is easy to install and use, and is compatible with a wide range of analyzers and data acquisition systems. The brand of this device is Leeupold & Stevens Inc, and it features a model number of 8901. It is classified under the categories of Business & Industrial, Test, Measurement & Inspection, Analyzers & Data Acquisition, Data Acquisition & Loggers, and Data Loggers. This device is ideal for use in collecting and analyzing data from various sources, and is a must-have for anyone looking to streamline their data acquisition process. Comes with books, cords, brackets and other pieces.