The Hastings Model 400 4-Channel Mass Flow Controller Power Supply is a high-quality industrial product designed and manufactured in the United States by Hastings. This power supply is specifically designed for controlling the flow of materials in a 4-channel system, ensuring precise and accurate results. With a focus on reliability and performance, this product is ideal for various industrial applications where precise control over material flow is essential. Additionally, the product comes with a manual for easy operation and maintenance, making it a convenient and efficient tool for businesses in need of a dependable mass flow controller power supply.