Key features

• •【High Accuracy Manometer】As a professional manometer with measurement range: +/-2.000psi; Accuracy: +/-0.3%FSO (at 25°C) ; Repeatability: +/-0.25%; Linearity/Hysteresis: +/-0.1%FSO; Limit maximum pressure:6Psi
• •【11 Selectable Units】Easily toggle between Psi, kPa, Kgfcm2, ozin2, Bar, mbar, inHg, mmHg, inH2O, ftH2O and cmH2O；Keep you work like a pro, Widely used in the following applications: flow measurement, air quality monitoring, level measurement, gas thermometry, and HVAC system control
• •【Data Record & Zero Setting】This Manometer would be record data, You can see the MAX/MIN/AVG value in this time, which help to easier to analyze the data conveniently; But before you did the measurement, you'll best try to set the zero setting first, long press the "HOLD" for 5 seconds, then it is zero setting
• •【Multi-Functional】Professional manometer measuring Differential pressure, Positive and Negative Pressure, Data Hold, MAX/MIN/Average, Large LCD backlight, Low battery indicate, Auto Power Off, DIF Function
• •【Package Included】1* AP-189A Manometer; 1* Protective bag; 1*Small screwdriver; 2*1.5V Battery; 1* 6Languages manual; This high-quality manometer is suitable for gas measurement systems, which measuring the air and ventilation system, calibrating and trouble shooting of gas pressure systems, HVAC, gas appliance repair and installation