MAQ20 Industrial Data Acquisition & Control System 2014 Product Catalog is a 32-page document that provides an overview of the system along with detailed descriptions, block diagrams, specifications and ordering information for each of the module types. The MAQ20 family consists of DIN-rail-mounted, programmable, multi-channel, industrially rugged signal conditioning input and output modules, and communications modules. A powerful, high-performance, highly-flexible system, the MAQ20 offers the industry's lowest cost-per-channel, integral PID-loop control and ±0.035% system accuracy (module dependent).