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Testo 420 Volume Flow Hood

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  • Ideal solution for regulating volume flows at larger air intakes and outlets
  • Helps users fulfil hygienic Indoor Air Quality guidelines and stipulations
  • Compatible with free iOS/Android Bluetooth App

rrp £2,159.00

now £1,990.00 (Ex. VAT) £2,388.00 (Inc. VAT)

rrp £2,159.00

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  • Description

    Testo 420 Volume Flow Hood

    A lightweight, precise and convenient instrument, the Testo 420 Volume Flow Hood is the ideal solution for regulating volume flows at larger air intakes and outlets.

    Featuring a flow straightener that significantly reduces the usual measurement errors at swirl outlets in particular, the Testo 420 Volume Flow Hood assists users to fulfil hygienic Indoor Air Quality guidelines and stipulations in ventilation and air conditioning systems efficiently (in industry, office rooms or in cleanrooms for example).

    Weighing less than 2.9 kg and featuring ergonomic handles, the Testo 420 Volume Flow Hood can be tilted and removed for more comfortable readout of the measurement values.

    Mobile devices can also be used as a second display and remote control (via the free iOS/Android Bluetooth App), also letting users finalise and send the measurement report directly on site.]

    Testo part number: 0563 4200

  • Specification

    Volume Flow

    • Measuring Range: 40 to 4000 m³/h
    • Accuracy ±1 Digit: ±3 % of m.v. +12 m³/h at +22 °C, 1013 hPa (85 to 3500 m³/h)
    • Resolution: 1 m³/h


    • Measuring Range: -20 to +70 °C
    • Accuracy ±1 Digit: ±0.5 °C (0 to +70 °C), ±0.8 °C (-20 to 0 °C)
    • Resolution: 0.1 °C

    Capacitive Humidity Sensor

    • Measuring Range: 0 to 100 %RH
    • Accuracy ±1 Digit: ±1.8 %RH +3 % of m.v. at +25 °C, (5 to 80 %RH)
    • Resolution: 0.1 %RH 

    Differential Pressure Sensor

    • Measuring Range: 0 to 120 Pa
    • Accuracy ±1 Digit: ±2 % of m.v. +0.05 Pa
    • Resolution: 0.001 Pa 


    • Operating temperature: -5 to +60 °C
    • Storage temperature: -20 to +60 °C
    • Weight: 2.9 kg
    • Standard hood: 610 x 610 mm
    • Battery type: Alkali manganese, mignon, Type AA
    • Battery life: 30 hrs
    • Display: Dot matrix with illumination
    • Memory: 2 GB internal
    • Interface: Micro USB
    • Warranty: 2 years
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  • Delivery Information

    At Test-Meter.co.uk we understand the importance of a reliable delivery service when shopping online. Especially when the goods are often essential to your working day. If your goods are required by a certain date please feel free to contact us for an honest and realistic indication whether this can be met. We aim to process all orders we receive within 1 to 3 working days, however from time to time we do have an increased demand for certain products or there might be delays from the manufacturer. In such cases delivery of your equipment may be subject to a minor delay.

    We use DPD/Interlink for all larger items and Royal Mail for smaller items and accessories. With DPD/Interlink you will receive a 1 hour delivery window on the day of delivery via e-mail/text and a notification 15 minutes before arrival so you will not have to wait around all day. You can even manage your booking online and re-arrange delivery for another date or arrange the goods to be left with a neighbour of your choice.

    We also offer delivery options for goods required urgently on certain products, all which are sent by DPD/Interlink.

    Our charges for UK deliveries:

    • FREE Delivery (on select products only): typically 3-5 working days*
    • Standard Delivery at £4.95: 2-3 working days
    • Next Working Day Delivery (on select products only) at £7.50
    • Pre-Noon Next Working Day Delivery (on select products only) at £9.50*
    • Pre-10.30am Next Working Day Delivery (on select products only) at £18.50*
    • Saturday Pre-Noon Delivery (on select products only) at £14.50*
    • Sunday Pre-Noon Delivery (on select products only) at £14.50*

    *UK mainland only

    NOTE! For next working day or Saturday/Sunday delivery options the order MUST be placed no later than 3pm on the working day before delivery is required. After 3pm, please arrange with our staff before selecting a priority delivery service. Priority services are available to UK mainland residents only (this might exclude certain areas in the north of Scotland).

    Customers outside the UK:

    Test-Meter.co.uk exports to many countries all over the world. Prices for shipping vary on location and weight/dimensions. Costs are calculated for certain countries at the checkout. If your country is not included in this list please e-mail admin@test-meter.co.uk with your name, address and the items you would like to order for an accurate shipping quote or go to http://www.test-meter.co.uk/test-equipment-export for more information.

    For more information on delivery, please see our terms and conditions.