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Testo 420 - Differential pressure measuring instrument

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Product code: 0560-0420

Backorder Now, once ordered your item will dispatch before the 16th of May 2025, call 1300 737 871 (NZ 0800 737 871 to confirm).

The testo 420 differential pressure measuring instrument is suitable for accurate differential pressure measurement up to 120 Pa, e.g. when checking filters in HVAC systems.

-Calculate flow velocity and volume flow using a Pitot tube.

-Handy instrument featuring a large display and user-friendly menu guidance.

-Save measurement data for analysis and documentation.

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$2,070.00 AUD + GST
 $2,277.00 AUD Inc. GST
The testo 420 differential pressure measuring instrument is suitable for accurate differential pressure measurement up to 120 Pa, e.g. when checking filters in HVAC systems. Flow velocity and volume flow are calculated by the testo 420. The measuring instrument can also be used for absolute pressure measurement.
Differential pressure measuring instrument with practical functions
You can use a Pitot tube and compatible connection hoses (both optional) to measure the flow velocity and volume flow in ventilation ducts. Timed and multi-point mean calculation, as well as the combination of the two, along with simple input of the duct geometry provide you with support for measurements in ducts.
The automatic zeroing ensures higher accuracy for low pressures. All measuring values are easy to read on the large display which has an illumination function.
Documenting the measurement data
Measurement data can be stored in the differential pressure measuring instrument for analyses and documentation. It's easy to manage the measurement data on the PC without any additional software, via the plug & play function.

Specifications

Differential Pressure - Piezoresistive:
- Measuring range: -120 to +120 Pa/+0.1 to +14 m/s
- Accuracy: +/- 2 % of mv + 0.5 Pa at +22 C, 1013 hPa
- Resolution: 0.001 Pa/0.01 m/s
- Reaction time: 1 s (t)
Absolute Pressure:
- Measuring range: 700 to 1100 hPa
- Accuracy: +/- 3 hPa
- Resolution: 0.1 hPa
- Reaction time: 1 s
General:
- Dimensions: 150 x 85 x 35 mm
- 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 inches
- Display function: Dot matrix
- Display lighting: with illumination
- Interface: Micro-USB
- Memory: 2 GB (internal)
- Storage temperature: -20 to +60 C

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