TURA-03B BLUE is designed using advanced engineering technology to measure the turns ratio of single-phase and three-phase transformers. TURA-03B BLUE has fast, easy and accurate TTR measurement features for current, voltage and power transformers using its user-friendly software. By using ANSI/IEEE C57.12.90 measurement method TURA-03B BLUE can produce precise results. TURA-03B BLUE is one of the most accurate devices with its wide range (0.8 to 50,000) ratio measurement capability and high precision (0.08 %).