Check the listing for details. Digital Differential Manometer Digital Air Pressure Meter Dual Port Manometer. Condition: New. Listed at 49.99 USD. Digital Differential Manometer, Digital Air Pressure Meter, Dual Port Manometer Gas Pressure Tester, 11 Selectable Units Differential Pressure Gauge The DY27A Digital Differential Manometer is a professional instrument to measure gauge & differential pressure in the ranges of ±241.3 kPa / ±35 psi / ±968.8 H2O. This manometer is ideal for using in HVAC industry, pneumatic controls, medical equipment, gas appliance repair and installation, laboratory testing, computer peripherals, etc. LCD DISPLAY INTRODUCTION LCD backlight, convenient lighting operation, display data clearer and easier to read. When there is no operation for 20 minutes during use, the pressure gauge will automatically turn off to avoid wasting electricity. PRESSURE SENSOR High-precision pressure sensor, high sensitivity, fast measurement. 11 selectable scales & units: Bar, ozin2, psi, inHg, mbar, mmHg, cmH2O, ftH2O, inH2O, kgcm2, kPa ZEROING After each use, you can click to clear the zero, simple and fast, make every pressure measurement result more precise and reliable. What Do You Get? 1x Digital Manometer 1x Flexible Hose 1x Black Rubber Head 1x Metal Adapter 1x Package box 1x User manual