... fuel consumption flow meters 1.Low consumption power 2.Highly intelligentized 3.Small volume fuel consumption flow metersFeature:1.Positive/negative/net flow or heat ... FunctionsCurrent output: 4-20mA, one channel, can be used for flow/heat transmitterOCT output: two channels, can be used for ... sewage and drainage water,oil,chemicals,beverage&food processors etc. Ultrasonic Fuel Consumption Flow Meters