... variety of corrosive and non-corrosive gas, liquid, widely used in the aviation, petroleum, chemical, metallurgy, electric power, light industry, machinery ... scale 7, stability: better than 0.1% / year 8, LCD / LED display (optional) 9, measurement medium: liquid, water or steam 10 ... Negative relative pressure -100KPa-0 -10KPa-0 Pressure Transmitter made in China