The instrument can measure the air pressure of single pipe , or differential pressure of two pipes ,It is suitable for measuring of ventilation and air condition systems,and widely use for gas measurement, calibration and any trouble shooting of any gas pressure systems.

Positive & Negative Pressure 
Support 12 Kinds of Units
Maximum/Minimun Modes & DIF Mode 
Data Record & Hold & Zero
Temp Measurement
Low Battery/Over Range Reminder
LCDDual-Port and LCD Dsplay
Auto Shutdown

Multifunctional, it can measure temperature and pressure, and also supports maximum and minimum modes, which can be applied to more situations.
High Quality
The handheld digital pressure gauge is made of ABS material, and the excellent performance of high-temperature resistance and impact resistance makes the air pressure meter have a long service life.
Wide Applications
Specially used for gas measurement and calibration, gas pressure system troubleshooting, laboratory testing, maintenance and installation of blowers,clean rooms, boilers and other gas appliances
LCD Backlight Display
Support LCD backlight, short press toturn on/off the backlight when power on. It is convenient lighting operation, display data clearer and easier to read.

Interface Display
The interface can display the measured temp value, max / min mode, delta-p mode, battery power, data hold mode, pressure measuring value and pressure unit at the same time.
High Measurement Accuracy
Adopt high-quality pressure sensors, with the characteristics of high accuracy and wide range.(Measurement Range: ±20.68 KPa/士2.999 PSi; Measurement Accuracy: +0.3% FSO(25℃); Measurement Rate: O.5s)
Support Various Units
12 kinds of measurement units are available.Including mmHg, inHg, ftH₂O, cmH₂O, inH₂O, Pa, KPa, mbar, bar, psi, Kgcm² and ozin².
1
Package Including
1x Digital Manometer
1x Barb Metal Connector
2x Soft Tubes
1x Package box
1x User manual
  
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