The REXNORD 331-9 MB+COIL is a high-performance tachometer designed for precise speed measurement in industrial applications. Operating at 205V, this tachometer is engineered to deliver accurate readings, ensuring optimal performance in various machinery. Constructed with durable materials, it meets industry standards for reliability and longevity. The compact design allows for easy installation in tight spaces, making it suitable for a range of systems. Ideal for monitoring rotational speed in motors and other equipment, the REXNORD 331-9 is a trusted choice for professionals seeking quality and precision.