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Flow Detective™ Air Flow Calibrator

Flow Detective™ Air Flow Calibrator



The Flow Detective™ is an easy to use all-in-one airflow calibrator that is suitable for all types of air sampling pumps and other applications for flows up to 5L/min. It is a rugged, compact lab or field portable calibrator which removes the need to purchase multiple flowmeters. This minimizes set up prior to undertaking calibrations, and saves on purchasing costs and valuable time to undertake pump calibrations.

It calibrates any air sampling pump within airflows 20mL/min (Plus model) to 5,000 mL/min, to ensure correct flow with automated traceable measurements in order to reduce the risk of errors. With its wide flow range, as well as calibrating dust sampling heads, it can be used to calibrate at low flows for sorbent tube sampling, so ensuring just one device is needed for all personal air sampling calibrations. The innovative device enables tagging pre and post calibration data, so users can see deviations before and after measurements.

The Flow Detective™ is the first calibrator on the market that ensures that your air sampling pump complies with ISO13137’s requirements for maximum pump pulsation. As pumps generally use a moving diaphragm, this creates fluctuations in the flow rate on a pump. As sampling heads like cyclones rely on a steady flow to maintain a specific size cut, it is important for pulsation to be as small as possible. The Flow Detective™ displays a red indicator if pulsation is above 10%.

Features & Benefits

  • High accuracy calibration to within 2%
  • Pulsation alert if over 10%
  • Simple operation
  • Rugged design
  • Long 70 hour battery life
  • Wide flow measurement from 0.02L/min to 5L/min
  • Bluetooth connectivity with App saves time for simple traceable reports
  • Automated 10 sec, closed loop, wireless calibration with Apex2 pumps


  • Water Quality Monitoring

Technical Specifications

Flow Measurement Range ml/min Normal range: 500 to 5,000
Low flow range: 20 to 500
Flow Accuracy < ± 5%
Pulsation Indicator flashes when pulsation is >10%
Flow Modes Standard or Actual Flow
Averaging Time 1 to 60 seconds
Display Colour OLED
Controls 4 buttons
Dimensions 112 x 37 x 102mm (4.41 x 1.46 x 4.02 inches)
Weight 372g (including boot)
Temperature Operation: 0 to 45°C
Storage: -10 to 50°C
Humidity 30 to 95% RH (non-condensing)
Barometric Pressure Auto-correcting
Temperature Sensor Accurate to better than 1%
Pressure Sensor Accurate to better than 3%
Battery Type Rechargeable Li Ion
Battery Level Indicator Yes
Battery Life >70 hours
Charge Time < 6 hours
Battery Cycles Life up to 500 cycles