Hello Dear friend, This is ASHKAN from ACAM MADAR Ltd. Co. from IRAN. We are expert in ultrasonic in meter and produced in our country and we have a lot of customer in this field. I am looking for good ultrasonic transducer company. In this case need 1 Mhz transducer for flowmeters. Please send me technical details. If you wanna have good cooperation please us with my hone.