Chinese LCD display, full Chinese menu type operation. Pressure, wind speed and wind quantity direct reading. Type pitot tube coefficient, air density, tuyere area. Smart wind pressure gauge in U. S. imports of micro pressure sensor, ultra-low power microcomputer, high performance instrumentation amplifier. Full touch keys, digital zero, backlight control. Portable, multi-function, high resolution, high accuracy, high stability. Smart wind pressure gauge with functions of measurement value of temperature compensation and intelligent numerical stability. Low battery voltage indicator, super pressure range scale. Using three 5 alkaline batteries can work 200 hours continuously. Scope of work stress: a) Pa within various range (0-2000 Note: special specification can be customized) b） Wind speed range: & lt; 57m/s。 c） Air volume range: & lt; 999999 m3 / h。 Zui large overload capacity: & le; Weight: < 0. Dimension: 70; 150; 30 ( 毫米)