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Testo 420 Volume Flow Hood
  • Testo 420 Volume Flow Hood
  • Testo 420 Volume Flow Hood
  • Testo 420 Volume Flow Hood

Testo 420 Volume Flow Hood

Testo Approved distributor and service company.

Includes: testo 420 flow hood base, 24" x 24" flow hood, USB cable, batteries, soft case w/ telescoping handle and wheels.

0563 4200
Testo
£1,990.00
£1,791.00 Save 10%
Tax excluded
Quantity
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The testo 420 is used for volume flow measurements (main application), Pitot tube measurements and pressure measurements for air conditioning and ventilation systems. Thanks to its interchangeable flow hoods, the testo 420 can be used for air inlets and outlets of various sizes. With the additional App (Android/iOS), the readings can be conveniently displayed on a tablet or smartphone, and in addition a measurement can be started, stopped and saved via the App.

The testo 420 is the light, precise and convenient solution for regulating volume flows at larger air intakes and outlets. At swirl outlets in particular, the flow straightener significantly reduces the usual measurement errors. This allows users to fulfil hygienic Indoor Air Quality guidelines and stipulations in ventilation and air conditioning systems quickly and precisely, e.g. in industry, office rooms or in cleanrooms.

Handling is especially easy with a uniquely low weight of less than 2.9 kg and ergonomic handles. The measuring instrument can be tilted and removed for more comfortable readout of the measurement values. In addition to this, mobile devices can be used via Bluetooth App integration as a second display and remote control. This makes the use of a tripod for high ceilings especially secure and comfortable. Users can furthermore use the App to finalise and send the measurement report directly on site. The testo 420 App is completely free and is available for iOS from the App Store and Android via Google Play.

FEATURES

Rugged and toughflow hood that weighs less than 6.2 lbs. (2.9 kg.).
Large, easy to read, tiltable, backlit display (removable) makes it easy to see the readings.
Flow straightener for more precise measurement at turbulent outlets.
App integration via Bluetooth for fast and easy monitoring and reporting on site.

Testo 420 Specifications
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).
Absolute Pressure
Measuring range 700 to 1100 hPa.
Accuracy ±3 hPa.
Resolution 0.1 hPa.
Reaction time 1 s.
Volume flow
Measuring range 40 to 4000 m³/h.
Accuracy ±3 % of mv + 12 m³/h at +22 °C
1013 hPa (85 to 3500 m³/h).
Reaction time 1 s (t90).
Resolution 1 m³/h.
General technical data
Dimensions 610 x 610 mm (Standard hood).
Operating temperature -5 to +50 °C.
EU-/EG-guidelines EU-guideline 2014/30/EU.
Battery type Alkali manganese, mignon, type AA.
Battery life 40 h.
Display size 3.5".
Display function Dot matrix.
Display ligting with illumination.
Interface Micro-USB; Bluetooth® 4.0 wireless technology.
Memory 2 GB (internal).
Storage temperature >-20 to +60 °C.
Standard Hood dimensions 610 x 610 mm.
Weight 2900 g.
Testo 420 warranty 2 years.

Download

Testo 420 Datasheet

PDF Specifications of the Testo 420 Volume Flow Hood.

Download (1.06M)

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Testo 420 Volume Flow Hood
Replacement Hood Replacement hood (360 x 360 mm) for mounting on the testo 420 volume flow hood. 0554 4200
Replacement Hood Replacement hood (305 x 1220 mm) for mounting on the testo 420 volume flow hood. 0554 4201
Replacement Hood Replacement hood (610 x 1220 mm) for mounting on the testo 420 volume flow hood. 0554 4202
Replacement Hood Replacement hood (915 x 915 mm) for mounting on the testo 420 volume flow hood. 0554 4203
Extendable Tripod Extendable tripod (up to 4 m) with wheels – ideal for measuring at ceiling outlets. 0554 4209
Hose Connection hose; silicone; 5 m long; max. load 700 hPa (mbar). 0554 0440
Hose Connection hose silicone-free for differential pressure measurement, length 5 m, load up to maximum 700 hPa, (mbar). 0554 0453
Pitot Tube Pitot tube, 500 mm long, stainless steel, for measuring flow velocity. 0635 2045
Pitot Tube Pitot tube, 350 mm long, stainless steel, for measuring flow velocity. 0635 2145
Pitot Tube Pitot tube, length 1000 mm, stainless steel, for measuring flow velocity. 0635 2345

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