Use this section to discuss products in the 1900 family including the 1900/65A, 1900/65, 1900/55, 1900/27, 1900/25, 1900/17, and the 1900/15. These products interface to System 1* software via the Trendmaster* Pro asset scanning network architecture and provide either single-channel or four-channel input capabilities. The system addresses basic machinery protection functionality for assets where only a few measurement points are required and for which a rack-based system such as 3300 or 3500 is not appropriate.