The UL103 ultrasonic level meter, ultrasonic level gauge, is a kind of non-contact, controlled by the microprocessor, easy installation, and maintenance of level measurement instruments. The sensor emits a high-frequency pulse and then listens for the echo. The pulse is transmitted in a cone. The pulse impacts the level surface and is reflected back to the sensor, now acting as a receiver, and then to the transmitter for signal processing. The built-in LCD display, convenient site setting. It doesn't have to contact industrial media can meet the requirements of most of the material level measurement, so as to thoroughly solve the disadvantages of pressure type, capacitance type, float type of traditional measurement methods such as winding, jam, leaking, corrosion medium, safeguard inconvenience. Thus can be widely used in plastics, coal, grain, sewage disposal, petroleum, chemical, food and beverage, pharmaceutical and other industries. Non-contact measurement, corrosion resistance, easy installation, high measuring accuracy, fast response, long life, good stability, large span, can be used to measure the height of liquid and solid material, in the barn, oil tank, chemical raw materials tank, sewage pool, high corrosive environment, requirements of hygiene, environment of material level measurement is widely used.