This document describes a digital data logger that features an advanced microcontroller, FDA compliance for software and hardware, a LCD or GLCD display, 8 slave digital inputs, real-time data storage of hardware events, connectivity to a dot matrix printer and PC via RS-485, support for MODBUS RTU or proprietary protocols, and FDA compliant SCADA software compatible with any OS. The data logger can operate on a power supply of 90 to 260 VAC at 50 Hz.