Profile: Alfatech Industrial Corporation is a manufacturer and supplier of industrial automation systems. Our product range includes DVP series PLC panels, DOP human machine interface & PID temperature controllers, DTA series PID temperature controller, DTB series PID temperature controller, and DTD series. PLC panels-DVP-EC3 series is mainly used for most economical solutions for sequential control & communication monitoring, and in various applications like monitoring photo transistor coupler, proximity switch, optical sensor, indicator, and illumination switch.