Đồng hồ đo chênh lệch áp suất cao hãng Asahi Gauge
Models 784, 785, 787S, 789, 784E, 787SE, 789E, 787ME and 789PE
These gauges indicate the difference of the pressures measured at two points on a measured line on a single scale.
Types：bellows, Bourdon tube
Size (dial diameter)：100mm、150mm
Scale range：1 kPa to 1 MPa
These gauges may be available with an electric contact