The measurement principle of ultrasonic level meter is to use the extraction technology of echo waveform to measure the echo time of ultrasonic pulse propagating in the gas, and the time required for the travel of ultrasonic emission and reflection is proportional to the measurement distance. ● A variety of output such as switching quantity, analog quantity, RS485, etc. ● Suitable for small and medium-sized tank liquid (material) level monitoring and alarm ● for non-contact media measurement, more reliable. Widely used in water supply and drainage, food, brewing industry, pharmaceutical industry and power plants, granaries, steel mills, chemical fiber industry, etc