Testo 420 - Air Flow Capture Hood

£2,159.00 £2,590.80 (inc. VAT)
Stock Status: 7 day delivery time
The CEC compliant testo 420 air flow capture hood with Bluetooth is the accurate, lightweight, and convenient solution for measuring volume flows at supplies and returns. Handling this air flow capture hood with its flow straightener and tiltable display is especially easy, with its low weight of less than 6.4 lbs, 24" x 24" included hood dimensions, and ergonomic handles.
This product has an up to 28 day delivery time

The rugged and durable testo 420 air flow capture hood is an accurate and lightweight air flow instrument. The standard flow hood supplied with the unit is 24 x 24", but the other optional flow hood sizes are available.
  • Measure volume flow from 50 to 2120 CFM
  • Measure air temperature from -4 to 158°F (-20 to +70°C)
  • Humidity sensor with range from 0 to 100% RH
  • Differential pressure measurements from 0 to 5" H20 (0 to 120Pa)
  • Weighs less than 6.2lbs (2.9kg) for easy installation
  • Flow straightener ensures accuracy even at troublesome outlets
  • Compatible with various different sizes of flow hood to cater for different vents/ducts etc
  • Large size, tiltable and removable backlit display unit
  • Use the display unit separately with an optional Pitot tube for measurements in smaller applications
  • Integrates wirelessly via Bluetooth with a smartphone/tablet running Testo's free app to share measurement data and allow report creation
  • Compatible with an optional tripod for stable, hands-free measurements of ceiling ducts
The testo 420 air flow capture hood is ideal for larger air supplies and returns, and enables fast and precise testing and balancing of indoor environmental systems. It provides reliable data with precise calculations of the overall volume flow in HVAC systems.
Volume flow is frequently measured at swirl outlets, and airflow measurements are often incorrectly measured due to the turbulent air from these outlets. Thanks to Testo’s volume flow straightener, you can be confident in receiving high measuring accuracy at swirl outlets. The integrated volume flow straightener calms this turbulence and converts it into a virtually uniform air flow. This enables highly accurate calculations of volume flow in the 24 to 2,354 CFM range.

The testo 420 app enables live measurement streaming of HVAC systems using a smartphone or tablet. The app features a start and stop function and enables you to save your measurement data in .txt format, and creates the measurement protocol directly on site. Measurement results, such as the overall volume flow and the air exchange rate, can be directly assigned to customer-specific folder templates. You can then send your readings and protocols via the in-app email function, saving you a considerable amount of time and increasing efficiency.

This purchase includes:
  • Testo 420 Volume Flow Hood Base
  • 24 x 24" Flow Hood
  • USB Cable
  • Batteries
  • Soft Case w/ Telescopic Handle/Wheels
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