CEM DT-8920 Pressure and Flow Meters with Large Backlit LCD Display

CEM DT-8920 Pressure and Flow Meters with Large Backlit LCD Display
Notice:
The standard package don't include batteries.Because,the international air shipping forbid to ship liquid,powder and batteries,we can not put them in the package box.Hope you can understand buy them in your local store or supermarket.
At the same time, please forgive us that we are unable to provide the English user manual. If you need it, please contact the customer service after purchase.
Thanks for your support!
Pressure and Flow Meters
DT-8920 is a Pressure and flow meter simultaneously with an easy-to-read, large, backlit LCD display. Measurement data is printed on site with minimum and maximum values. It can Monitor air pressure across key HVAC components and Promote good indoor air quality, which Ensure proper air flow balance and Maintain a comfortable environment.
Larger LCD display with backlight.
Relative time clock on MAX MIN and AVG provides a time reference for measurement.
Pressure, velocity or air flow measurement provides Zero Adjust.
Display pressure, Air velocity or air flow plus environment temperature simultaneously.
Easy to calculate the area of a rectangular or circular duct.
USB interface, USB to UART Bridge Controller
Specifications
Manometer
Accuracy
Repeatability
Linearity/Hysteresis
0.29% FSO
Pressure Range
5000Pa
Maximum Pressure
10psi
Response Time
0.5 Seconds typical
Over range Indicator
OL
Under range Indicator
-OL
Measurement
Units
Range
Resolution
PSI
0.7252
0.0001
mbar
50.00
0.01
inH2O
20.07
0.01
mmH2O
509.8
0.1
Pa
5000
1Pa (0.1Pa only 8920B)
Air Velocity
Range
Resolution
Accuracy
m/s(meter per second)
1-80.000
0.001
2.5% of reading at 10.00m/s
ft/min(feet per minute)
200-15733
1
Accuracy is function of velocity and duct size
km/h(kilometers per hour)
3.5-288.0
0.1
MPH(miles per hour)
2.25-178.66
0.01
Knots(nautical miles per hour)
2.0-154.6
0.1
Air Flow
Range
Resolution
CFM
0-99.999ft3/min
0.0001 to 100
CMM
0-99.999m3/min
0.001 to 100
Temperature
Range
Resolution
Accuracy
°C
0 to 50.0°C
0.1
°F
32.0 to 122.0°F
0.1