MAN-45 Professional Digital Manometer, Portable Handheld Air Vacuum/ Gas Pressure Gauge Meter 11 Units with Backlight, ±13.78kPa ±2PSI, Suitable for Differential Pressure of 1-2 Pipes, Ventilation, Air Condition System Measurement Dichroscope 4-digits digital LCD screen

4-digits digital LCD screen

Switchable between mils and microns

Humidity range: 20~90% (both indoor and outdoor)

Load indication : Use the symbol OVER (indicating over range) and UNDER (indicating less than lower limit of the range)

5 AA Battery  (not included)

MAN-45 Professional Digital Manometer, Portable Handheld Air Vacuum/ Gas Pressure Gauge Meter 11 Units with Backlight, ±13.78kPa ±2PSI, Suitable for Differential Pressure of 1-2 Pipes, Ventilation, Air Condition System Measurement Dichroscope 4-digits digital LCD screenMeasures air pressure of the single pipe or differential pressure of 2 pipes. Has 11 selectable units of measurement kPa, psi, kgfcm2, ozin2, bar, mbar, inHg, mmHg, inH2O, ftH2O, cmH2O. Best for measuring the ventilation and air condition systems. Widely used for gas measurement, calibration, and any troubleshooting of any gas pressure systems. Has additional features like data hold and auto power off disabled. Careful use of this meter will provide