Proteus Industries Inc. is a leading manufacturer of advanced liquid flow sensing and control solutions for industrial and OEM applications. Since 1978, we have specialized in designing high-precision flow meters, flow switches, and flow controllers that deliver reliable and accurate performance across demanding industries.

Our products are widely used in semiconductor manufacturing, medical equipment cooling, laser systems, automotive testing, and other critical applications where real-time monitoring and precision are essential. Headquartered in Mountain View, California, Proteus is ISO 9001-certified and recognized for innovation, durability, and customizable flow technology solutions.

Engineered for long-term reliability, our flow monitoring systems are built to perform consistently even in the most challenging environments. At Proteus, we are committed to quality, technical excellence, and building strong, long-lasting partnerships with our customers.