Knopp K-3 Phase Sequence Indicator, 60-600V With Case. Made in USA. Very nice #5

The Knopp K-3 Phase Sequence Indicator is a high-quality instrument made in the USA by Knopp. It is designed to detect the phase sequence of power sources ranging from 60 to 600 volts. This reliable tool comes with a durable case for easy storage and transportation, making it ideal for industrial settings where accurate testing and measurement are essential. Perfect for professionals in the field of electrical testing and inspection, the Knopp K-3 Phase Sequence Indicator ensures precise and efficient detection of phase sequences.