Testo 420

Air Flow Capture Hood Light (2.9 kg)

The volume flow hood testo 420 is 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 easyith 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 finalize and send the measurement report directly on site.

    •  80 to 3500M³/h

 

Applications

Air Quality & Control – Industry – Hygiene – Healthcare

TESTO 420

 

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 45s (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
General technical data
Battery life 40 h
Interface Micro-USB; Bluetooth® 4.0 wireless technology
Memory 2 GB (internal)
Overview

Testo 420

Air Flow Capture Hood Light (2.9 kg)

The volume flow hood testo 420 is 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 easyith 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 finalize and send the measurement report directly on site.

    •  80 to 3500M³/h

 

Applications

Air Quality & Control – Industry – Hygiene – Healthcare

Technical Specifications

TESTO 420

 

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 45s (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
General technical data
Battery life 40 h
Interface Micro-USB; Bluetooth® 4.0 wireless technology
Memory 2 GB (internal)
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