gas meter with good quality with 14 years high accuracy,long life, competitive price superior service wet gas flow meterCharacteristics1. l Measurement ... such as turbine, electromagnetic, ultrasonic, mass, volumetric,orifice, differential pressure flow meter. It was widely used in fields of gas, natural gas, petroleum ... ); Explosion isolating type (ExiallBT4)Protection classIP65; IP67;IP68 gas meter