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testo 420 I Balometer Kit with airflow capture hood for large air supplies and returns and swirl outlets I With Bluetooth and optional NIST certification

KWD 901.500
KWD 1,262
Brand
Testo
Weight
5.1 kg
StyleFlow Hood
– 1 +

Special Features

  • VERSATILE; The testo 420 psychrometer hvac provides reliable data for air velocity, volume flow, absolute and differential pressure, air temperature, as well as relative humidity
  • EFFICIENT; The unique CEC approved air pressure meter converts the turbulent air into a virtually uniform airflow, achieving particularly accurate data and calculations in the 24 to 2,354 CFM range
  • RANGE; The air flow tester offers a temperature range of -4° to 140 °F, a humidity range of 0 to 100 %rH, differential pressure range of -0.480 to 0.480 InH2O / -120 to +120 Pa, volume flow range of ±2 % of mv + 0.002 InH₂O at +72 °F, 405 InH₂O / ±2 % of mv + 0.5 Pa at +22 °C, 1013 hPa, and absolute pressure range of 280 to 440 InH₂O / 700 to 1100 hPa
  • ACCURACY; The digital gauges hvac provide extremely precise data with a temperature accuracy of +-1 °F (32° to 140 °F) +-1.4 °F (-4° to 32 °F), a humidity accuracy of ±1.8 %rH + 3 % of mv at +77 °F / ±1.8 %RH + 3 % of mv at +25 °C (5 to 80 %rH), and a differential pressure accuracy of +-2 % of mv + 0.002 InH2O at +72 °F, 405 InH2O / +-2 % of mv + 0.5 Pa at +22 °C, 1013 hPa, absolute pressure accuracy of +-1 InH₂O / +-3 hPa, and volume flow accuracy of +-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)
  • APP CONNECTION; Thanks to the lightweight design, ergonomic handles and tiltable display, the durable instrument achieves a convenient application of overhead measurements. Follow all measurements remotely via Bluetooth from the removable control unit or a smartphone or tablet. Send results directly from the job site for a more convenient documentation
  • STANDARDIZED; Take advantage of three calibrated temperature points with the included NIST standards testing certificate. The calibration ensures all regulatory requirements for the instrument are met

Description

testo 420 airflow capture hood - Rapid measurements of airflow in large rooms and swirl outlets

Volume 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:
TEMP measuring range: -4° to 158 °F / -20 to +70 °C
Accuracy: +-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 H
Accuracy: +-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 Pa
Accuracy: +-2 % of mv + 0.002 InH2O at +72 °F, 405 InH2O / +-2 % of mv + 0.5 Pa at +22 °C, 1013 hPa
Absolute pressure measuring range: 280 to 440 InH2O / 700 to 1100 hPa
Accuracy: +-1 InH2O / +-3 hPa
Volume flow measuring range: 24 to 2354 CFM / 40 to 4000 m3/h
Accuracy: +-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 g
Battery life: 40 hours

Delivery 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

Delivery Scope testo 420 with NIST:
1 x testo 420 airflow capture hood control unit including USB cable and batteries, 1 x Flow straightener, 1 x Soft-shell protective case, 1 x NIST

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