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$ 6.223.159
$ 6.733.338
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The testo 420 Airflow Capture Hood - Rapid measurements of airflow in large rooms and swirl outletsVolume flow is frequently measured at swirl outlets, and airflow measurements are often incorrectly measured due to the turbulent air from these outlets. The testo 420 volume flow capture hood with its removable control unit offers a convenient solution for measurements of flow velocity, volume flow, absolute pressure, temperature and relative humidity in large rooms and swirl outlets. Automatic zeroing ensures a higher accuracy for low pressure.Technical Data Testo 420:TEMP measuring range: -4° to 158 °F / -20 to +70 °CAccuracy: +-1 °F (32° to 158 °F) / +-0.5 °C (0 to +70 °C) / +-1.4 °F (-4° to 32 °F) / +-0.8 °C (-20 to +0 °C)Humidity measuring range: 0 to 100 %r HAccuracy: +-1.8 %rH + 3 % of mv at +77 °F / +-1.8 %RH + 3 % of mv at +25 °(5 to 80 %rH)Differential Pressure measuring range: -0.480 to 0.480 InH2O / -120 to +120 PaAccuracy: +-2 % of mv + 0.002 InH2O at +72 °F, 405 InH2O / +-2 % of mv + 0.5 Pa at +22 °C, 1013 hPaAbsolute pressure measuring range: 280 to 440 InH2O / 700 to 1100 hPaAccuracy: +-1 InH2O / +-3 hPaVolume flow measuring range: 24 to 2354 CFM / 40 to 4000 m3/hAccuracy: +-3 % of mv + 7 CFM at +72 °F / +-3 % of mv + 12 m3/h at +22 °C; 405 InH2O (50 to 2060 CFM) / 1013 hPa (85 to 3500 m3/h)Dimensions: 24 x 24 in. (Standard hood) / 610 x 610 mm (Standard hood)Weight: 102 oz. / 2900 gBattery life: 40 hoursDelivery Scope testo 420:1 x testo 420 airflow capture hood control unit including USB cable and batteries, 1 x Flow straightener, 1 x Soft-shell protective case
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