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testo 420 Air Capture Hood

AllMeasuring Instrumenttesto

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testo 420 Air Capture Hood
testo 420 Air Capture Hood (Flow Hood) With Support Poles
testo 420 Air Capture Hood (Flow Hood) With Impressive Packing Bag
testo 420 Air Capture Hood (Flow Hood) With Optional Stand Rack
testo 420 Air Capture Hood (Flow Hood)
testo 420 Air Capture Hood (Flow Hood)
testo 420 Air Capture Hood (Flow Hood)
testo 420 Air Capture Hood (Flow Hood)
testo 420 Air Capture Hood (Flow Hood)
testo 420 Air Capture Hood (Flow Hood)
testo 420 Air Capture Hood (Flow Hood)
testo 420 Air Capture Hood (Flow Hood)
testo 420 Air Capture Hood (Flow Hood) With Optional Stand Rack
testo 420 Air Capture Hood (Flow Hood)
testo 420 Air Capture Hood (Flow Hood)
testo 420 Air Capture Hood (Flow Hood)
testo 420 Air Capture Hood (Flow Hood)
testo 420 Air Capture Hood (Flow Hood)
testo 420 Air Capture Hood (Flow Hood)
testo 420 Air Capture Hood (Flow Hood)
testo 420 Air Capture Hood (Flow Hood)
testo 420 Air Capture Hood (Flow Hood)

testo 420 Air Capture Hood (Flow Hood)

The testo 420 accurate, lightweight flow hood with Bluetooth is the precise and convenient solution for measuring volume flows at supplies and returns. Handling this capture hood with flow straightener and tiltable display is especially easy with the low weight of less than 6.2 lbs. and ergonomic handles.

Key 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

Overview
 
The rugged and tough testo 420 balometer is an accurate, lightweight flow hood with Bluetooth.
•    The capture hood with flow straightener significantly improves measurement accuracy, saving you time and headaches for these difficult situations.
•    The display can be tilted for a more comfortable readout.
•    Bluetooth allows for connection to mobile devices, which can be used as a second display or remote control
•    The App can be utilized to finalize and send measurement reports while still on site
•    Use of an optional tripod is especially easy for high ceilings
 
 
Delivery Scope (What's Included):
 
testo 420 volume flow hood including measuring instrument, 
610 x 610 mm hood, 
5 x tension rods, 
USB cable, 
batteries, 
trolley and calibration protocol.

Temperature - NTC

Technical data  

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)

Resolution

0.1 °F / 0.1 °C

Reaction time

45 sec (t90)
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Humidity - Capacitive

Technical data  

Measuring range

0 to 100 %rH

Accuracy

±1.8 %rH + 3 % of mv at +77 °F / ±1.8 %RH + 3 % of mv at +25 °C
(5 to 80 %rH)

Resolution

0.1 %rH
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Differential Pressure

Technical data  

Measuring range

-0 to 0 InH₂O / -120 to 120 Pa

Accuracy

±2 % of mv + 0.0 InH₂O at +72 °F, 405 InH₂O / ±2 % of mv + 0.5 Pa at +22 °C, 1013 hPa

Resolution

0.000 InH₂O / 0.001 Pa

Reaction time

1 sec (t90)
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Absolute Pressure

Technical data  

Measuring range

280 to 440 InH₂O / 700 to 1100 hPa

Accuracy

±1 InH₂O / ±3 hPa

Resolution

0.0 InH₂O / 0.1 hPa

Reaction time

1 sec
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Volume flow

Technical data  

Measuring range

40 to 4000 m³/h

Accuracy

±3 % of mv + 12 m³/h at +72 °F / ±3 % of mv + 12 m³/h at +22 °C 
405 InH₂O (85 to 3500 m³/h) / 1013 hPa (85 to 3500 m³/h)

Reaction time

1 sec (t90)

Resolution

1 m³/h
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General technical data

Technical data  

EU-/EG-guidelines

EU-guideline 2014/30/EU

Warranty

2 years

Battery type

Alkaline, type AA

Battery life

40 h

Display size

3.5''

Display function

Dot matrix

Display ligthing

with illumination

Interface

Micro-USB; Bluetooth® 4.0 wireless technology

Memory

2 GB (internal)

Storage temperature

-4° to 140 °F / -20 to +60 °C

Weight

102 oz. / 2900 g

Dimensions

24 x 24 in. (Standard hood) / 610 x 610 mm (Standard hood)

Operating temperature

23° to 122 °F / -5 to +50 °C

Accessories

Product name Order no.

Extendable tripod (up to 4 m) with wheels

0554 4209
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Additional accessories and Spare parts

Product name Order no.

Connection hose, silicone, 15 ft. long

0554 0440

Connection hose silicone-free for differential pressure measurement, length 5 m, load up to maximum 700 hPa, (mbar)

0554 0453

Pitot tube, 500 mm long, stainless steel, for measuring flow velocity

0635 2045

Pitot tube, stainless steel, for measuring flow velocity

0635 2145

Pitot tube, 1000 mm long, stainless steel, measures velocity in connection with pressure probes 0638 1345/..1445/..1545

0635 2345
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Certificates

Product name Order no.

With a Testo NIST Calibration Certificate, we will calibrate your Testo meter to three factory standard velocity points. Testo NIST Velocity Calibration Certificates are archived for 7 years, ensuring that crucial data is available when needed.

400520 4401
 

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