... Mpa, Kpa, bar, psi, kg/cm2 Pressure gauge digital switch The VM281 Digital Pressure Gauge, using a special ASIC circuit and sensor design ... LCD display, thus it has a long life, easy to use, inexpensive, widely used on-site pressure indicator, such as pipeline ... VM281B (mainly used in low and negative pressure measurements display)The VM281 Digital pressure Gauge is widely used in the fields of Air ...