The TCU pump controller from Data Flow Systems combines automated pump control functions with SCADA communications for fixed-speed and variable-frequency drive applications. It automates up to three pumps or can be linked in series to accommodate any number of pumps. It has an intuitive operator interface and expandable I/O interface; no PLC knowledge is required. The HOA switches are fail-safe and remain functional even with loss of power. The unit is SCADA-ready with open Modbus RTU and ASCII protocols and is available with integrated radio, networking, auto dialer or Verizon cellular communications. 321/259-5009; www.dataflowsys.com.