Instrument introduction: 5815 and 5825 micromanometers make your HVAC pressure test easier. These rugged instruments can measure the wind speed in the duct using a pitot tube. The 5815 handheld digital micromanometer is easy to operate and can quickly and accurately measure differential pressure and static pressure. The high-performance 5825 can also calculate the air volume and has the function of automatic data recording.

Main features: The measurement range of differential pressure and static pressure is from -15 to +15 in.H2O (-3735～+3735Pa); wind speed can be calculated and displayed when using Pitot tube; user-defined time constant; data statistics function.

Additional functions of the 5825 model: calculation of air volume; recording of data with time and date identification; up to 12,700 data and 100 data groups can be stored; including a set of LogDat2 data download software; programmable K factor.

Technical parameter 

Static pressure/differential pressure:

Range: -3735～+3735Pa
Accuracy: ±1% of reading ±1Pa Resolution: 1Pa
Wind speed (pitot tube): Range: 0.27～78.7m/s Accuracy: ±1.5% (when less than 10.16m/s) Resolution: 0.1 m/s
Air duct size (5825): 1～635cm, increment of 0.1cm
Volume flow range (5825): The actual range is a function of wind speed, pressure, actual duct area and K factor. Data storage capacity (5825): Capacity 12700 data and 100 data groups
Data collection interval (5825): 1s～1h
Instrument temperature range: Operation 0～70℃; Storage -40～85℃ Instrument size: 8.4 cm×17.8 cm×4.4 cm Instrument weight (with battery): 0.27kg
Power supply: Four AA batteries or optional AC adapter