Knopp K-3 Phase Sequence Indicator, 60-600V With Case. Made in USA. Very nice #1

The Knopp K-3 Phase Sequence Indicator is a high-quality test meter made in the USA by the reputable brand Knopp. It is designed to indicate the phase sequence of power in a range of 60-600 volts, providing accurate measurements for industrial and business settings. The inclusion of a case adds convenience and protection for easy transport and storage. This product is a reliable and durable tool for ensuring proper electrical function and inspection in various professional applications.