TESTO testo 420 differential pressure meter for 0...120 Pa

The testo 420 differential pressure meter is suitable for precise differential pressure measurement up to 120 Pa, e.g. when checking filters on HVAC systems. Flow velocity and volume flow are calculated by the testo 420. The meter also enables absolute pressure measurement.Differential pressure meter with practical featuresUsing a pitot tube and suitable connecting hoses (both optional), you can measure the flow velocity and volume flow in the ventilation duct. Time-averaged and spot averaging, as well as the combination of time-averaged and spot averaging with simple input of the duct geometry, assist you with measurements inside the duct.At low pressures, automatic zero adjustment ensures greater accuracy. All measured values are easy to read on the large, backlit display.Documentation of measurement dataMeasurement data can be stored in the differential pressure meter for analysis and documentation. Managing the measurement data on a PC is very simple and requires no additional software, thanks to the Plug & Play function.