The Sigma Air Manager (SAM) 4.0 blower control from Kaeser Compressors provides seamless integration into plant control/SCADA systems, tying blowers together in a secure Sigma Network. The control analyzes operating data, simulates possible responses and selects the most efficient option to optimally match air production to system demand. Features include a 12-inch color touch screen for at-a-glance operating status, pressure history, power consumption and error messages in real time. 877/596-7138; www.kaeser.com.