1.Introductions of UTG21-H ultrasonic level meter UTG21-H ultrasonic level gauge built-in temperature compensation, power adaptive, using a number of self-developed patented technology, with a new signal processing technology, which greatly improves the measurement accuracy of the instrument, the interference echo was significantly suppressed Features. UTG21-H ultrasonic level gauge with aluminum alloy die-casting shell, looks beautiful, and has good protection. Industrial instrumentation with isolated power supply, all of the input and output lines are mine, over-voltage, over-current protection circuit . UTG21-H ultrasonic level meter installation, maintenance, calibration simple. Products are widely used in petroleum, chemical, water treatment, water conservancy, food, food and other industries level measurement, with safety, clean, high precision, long life, stable and reliable, easy installation and maintenance. 2. Features of UTG21-H ultrasonic level meter high preci