The TAS-331DG is an AC transducer from Deif that is designed to measure voltage, current, frequency or phase angle on AC networks. This device is micro-controller based and has 1 analogue output. It contains no mechanical moving parts like potentiometers and renders an proper calibration stability. It has a supply and measuring voltage up to 690 V, and has easy configuration using a PC interface. The user can adjust the input range and output range without making any mechanical settings or adjustments.