The RPS-4000 is a self-contained long-range ultrasonic sensor manufactured by MIGATRON. It is designed to provide level control of both liquid and bulk materials. With its solid-state construction and solid-state relay outputs, this sensor offers reliable and accurate measurement. It features an adjustable range of 2-40 feet and operates at a voltage range of 15/24VDC. It is suitable for various industrial applications and ensures precise and efficient level control. Plus, it is RoHS compliant, ensuring environmentally-friendly operation.