The Integra Ri3 dms is an accurate and cost effective solution for measurement and display of all major electrical and power quality parameters with easy programming and user friendly navigation in DIN 43880 enclosure. The product features a DIN-rail enclosure, backlit LCD display and user programmable CT ratios, all accessible via an intuitive user interface. Integra Ri3 dms measures 17 electrical parameters including total harmonic distortion (THD) measurement up to the 31st harmonic.