TEREN Economical Digital Differential Pressure Gauge, D2L3, 1% Accuracy, 5 Units Selectable, AA Battery x 4, Range 1.0" WC, 4 Bits LCD

 Apply high accuracy MEMS sensor and digital technologies, can measure positive, negative or differential pressure. It can completely replace the traditional pointer mechanical gauges  It can measure fan and blower pressures, filter resistance, air velocity, pressure drop across orifice plates, differential pressure of medical or pharmaceutical machine, etc.  No any movable parts, no any effect on vibration.  With ultra-thin design of 33mm, it could be flush, surface or wall mount.  The accuracy is up to ±1% FS, with large LCD display