The ARRAY super intelligent controllers are available with 12 or 22 I/O lines. For more complex applications, the units are expandable up for as many as 122 I/O lines: 74 inputs and 48 outputs. Expandable modules include remote-control receivers and handheld transmitters with a range up to 70m, and a MODBUS module supporting the MODBUS RTU extended Protocol. For the controllers, function-block programming software is free of charge. Pricing for ARRAY super intelligent controllers starts at $74 each. Electrotech Sales Group LLC, Colmar, PA. (800) 522-3868.