Items : Performance & Parameter Principle : Transit time ultrasonic flowmeter Accuracy : ± 1% Display : 4×16 character LCD with backlight, support the language of Chinese, English and Italian Signal Output : 1 way OCT pulse output(Pulse width 6~1000ms, the default value is 200ms) Data Interface : Insulate RS232 serial interface, upgrade the flowmeter software by computer Type of Liquid :Single liquid can transmit sound wave, such as water, sewage, oil, chemicals, plant effluent, beve