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testo 420 - volume flow hood

9,300.00 AED
In stock
Product Details
Brand: Testo
Temperature range: -20 to +60 °C
Humidity range: 0 to 100 %RH
Differential Pressure Range: -120 to +120 Pa
Pressure Range: 700 to 1100 hPa
Volume Flow Range: 50 to 4000 m³/h
Battery Type: Alkali manganese, mignon, type AA
Battery Life: 40 h
Display size: 3.5
Interface: Micro-USB; Bluetooth® 4.0 wireless technology

Testo 420 - volume flow hood

Order-Nr. 0563 4200

The testo 420 volume flow hood is designed for larger air inlets and outlets, offering a quick and precise solution for meeting hygiene standards and indoor air quality requirements. This tool is a dependable resource for accurately calculating the total volume flow in HVAC systems, particularly in settings like hospitals, office buildings, and commercial facilities.

Volume flow is frequently measured at swirl outlets. Air flows are often incorrectly measured due to the turbulent air at these outlets.To get information about the testo 420 price contact our experts.

Testo flow hood Introduction


TESTO 420 Key features

  • Volume flow hood for larger swirl outlets for measuring volume flow, temperature and relative humidity
  • Impressively light with a weight of 2.9 kg
  • Precise measurement even at swirl outlets thanks to integrated volume flow straightener
  • Fast set-up, convenient usability and practical functions such as measurement data management and on-site report creation via testo Smart App

Testo 420 Specifications

Specification Details
Temperature – NTC
Measuring Range -20 to +70 °C
Accuracy ±0.5 °C (0 to +70 °C), ±0.8 °C (-20 to +0 °C)
Resolution 0.1 °C
Reaction Time 45 s (t₉₀)
Humidity – Capacitive
Measuring Range 0 to 100 %RH
Accuracy ±1.8 %RH + 3 % of mv at +25 °C (5 to 80 %RH)
Resolution 0.1 %RH
Differential Pressure – Piezoresistive
Measuring Range -120 to +120 Pa
Accuracy ±2 % of mv + 0.5 Pa at +22 °C, 1013 hPa
Resolution 0.001 Pa
Reaction Time 1 s (t₉₀)
Dimensions 610 x 610 mm (Standard hood)
Weight 2900 g
Battery Life 40 h
Memory 2 GB (internal)
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testo 420 - volume flow hood