... power supply 3) 4 LED display 4) Alarm gauge PG-801E Digital Pressure Gauge FEATURES:1. Large screen LED display, easy to read ... power supply7. Measuring hydraulic oil, gases, liquids, fluid, etc8. Pressure sensor/ transmitter with LED display9. 304 or 316 Stainless steel ... freelyMeasured medium: non-corrosive gas or liquid, water, oil, etc.Pressure range: -100Kpa ~ 0; 0 ~ 60Mpa can be selected. ( ...