IQDS Integrated Ultrasonic Level Sensor Tank Level Probe 4-20mA 0-10mIQDS Integrated Ultrasonic Level Sensor Tank Level Probe 4 20mA 0 10m IQDS Ultrasonic Water Tank Level Sensor (measure material level, liquid level) is a non contact, high reliability, cost effective, easy to install and maintain level measuring instrument. It can meet most of the level measurement requirements without contacting the medium, and can be widely used in the measurement of the height of various liquid and solid materials, especially in