Testo 435-4 Multifunction Indoor Air Quality Meter

$1,534.00
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  • Testo 435-4 Multifunction Indoor Air Quality Meter
  • Testo 435-4 Multifunction Indoor Air Quality Meter
  • Testo 435-4 Multifunction Indoor Air Quality Meter
  • Testo 435-4 Multifunction Indoor Air Quality Meter
  • Testo 435-4 Multifunction Indoor Air Quality Meter

Testo 435-4 Multifunction Indoor Air Quality Meter

$1,534.00
Loading reviews...

All prices are exclusive of GST

Part No. 0563 4354

  • Includes pressure difference sensor for pitot static tube measurements or filter monitoring
  • Further sensors optionally available (eg. anemometer, moisture sensors, lux and degree of turbulence sensors) for a variety of different measuring applications
  • Super-size memory for up to 10 000 measurements
  • PC software for analyzing and logging measuring data

The Testo 435-4 multifunction indoor air quality meter allows you to carry out all the measurements you need to inspect and adjust ventilation and air conditioning systems and to check the quality of the indoor air. There is also an integrated pressure difference sensor for pitot static tube measurements and filter monitoring and a wide range of optionally available sensors and probes to choose from.

Product Description
The multifunction meter allows you to carry out a variety of different measurements which enable you to inspect and adjust ventilation and air conditioning systems and check the quality of the indoor air. In addition to the many other functions and features which its smaller brother, the 435-2, has, the testo 435-4 also has an integrated pressure difference sensor for measurements with pitot static tube and filter monitoring.

Find out which benefits the multifunction meter testo 435-4 provides
The testo 432-4 is extremely versatile and can measure a host of variables including air temperature, air flow, volumetric flow rate, humidity and lux. And because you know best what your multifunction meter needs to be able to do, you can configure it accordingly by connecting any one of the many optionally available sensors and probes.

In addition to the sensors which can be connected directly to the meter, you can also connect up to 3 wireless sensors via an optionally available wireless module. The meter can pick up the measurements via the wireless sensors over a distance of up to 20 meters. This allows you to carry out quick and easy measurements at places which would otherwise be extremely difficult or virtually impossible to reach.

There’s also a special optionally available carry case that can hold not only your meter but also all the probes and sensors that make up your individual set.

Multiple features, yet easy to use
The Testo 435-4 multifunction meter is designed to work quickly and efficiently without having to be laboriously programmed first.

Sensor dependent menus and selectable user profiles for typical applications like “duct measurements” and “IAQ measurements” ensure that the meter is always ready to use. The testo 435-4 has a super-size memory that can save up to 10 000 measurements, which can be transferred to your laptop or PC via the included USB cable. The included software allows you to log, archive and clearly structure all relevant measuring data and measuring programmes, for example duct measurements. Specially adapted measurement protocols can be used to present your customers with data from duct, long-term and degree of turbulence measurements. The optionally available testo fast printer can be used to provide your customers with on-the-spot protocol print outs.

The Testo 453-4 has a large, easy-to-read backlit display that shows the dew point difference along with other values including min, max and mean values. A durable protective cover protects the Testo 435-4 multifunction indoor air quality meter reliably against impact.

Delivery Scope
Testo 435-4 multifunction meter including pressure difference sensor, memory, PC software, USB cable, calibration protocol, batteries

Temperature - NTC
Measuring range -50 to +150 °C

Accuracy
±0.2 °C (-25 to +74.9 °C)
±0.4 °C (-50 to -25.1 °C)
±0.4 °C (+75 to +99.9 °C)
±0.5 % of mv (Remaining Range)

Resolution 0.1 °C

Temperature - TC Type K (NiCr-Ni)
Measuring range -200 to +1370 °C

Accuracy
±0.3 °C (-60 to +60 °C)
±(0.2 °C + 0.5 % of mv) (Remaining Range)

Resolution
0.1 °C

Temperature - TC Type T (Cu-CuNi)
Measuring range -200 to +400 °C

Accuracy
±0.3 °C (-60 to +60 °C)
±(0.2 °C + 0.5 % of mv) (Remaining Range)

Resolution 0.1 °C

Humidity - Capacitive
Measuring range 0 to +100 %RH
Accuracy See probe data
Resolution 0.1 %RH

Absolute Pressure
Measuring range 0 to 2000 hPa
Accuracy See probe data
Resolution 0.1 hPa

Velocity - Vane
Measuring range 0 to 60 m/s
Accuracy See probe data
Resolution
0.01 m/s (Ø 60 mm vane + Ø 100 mm vane)
0.1 m/s (Ø 16 mm vane)

Velocity - Hot wire
Measuring range 0 to 20 m/s
Accuracy See probe data
Resolution 0.01 m/s

Ambient CO₂
Measuring range 0 to +10000 ppm
Accuracy See probe data
Resolution 1 ppm

Differential pressure (internal sensor) - Piezoresistive
Measuring range 0 to +25 hPa

Accuracy
±0.02 hPa (0 to +2 hPa)
±1 % of mv (Remaining Range)

Resolution 0.01 hPa
Overload 200 hPa

Light
Measuring range 0 to 100000 Lux
Accuracy See probe data
Resolution
1 Lux
0.1 Hz

General technical data
Dimensions 220 x 74 x 46 mm
Operating temperature -20 to +50 °C
Housing ABS / TPE / Metal
Protection class IP54
EU-/EG-guidelines 2004/108/EG
Battery type 3 AA mignon 1.5 V
Battery life 200 h (typical vane measurement)
Display ligthing Yes
Memory 10,000 measuring values
Storage temperature -30 to +70 °C
Weight 428 g

Please contact us directly for probe options to find the correct probe for your application. Ph: 09 579 1990 or email: sales@eurotec.co.nz

Flow measurement in the ventilation duct using a thermal anemometer and vane anemometer
Testo offers compact anemometer probes and pitot tubes for measuring the flow and volumetric flow in the ventilation duct.

Selecting a suitable probe or measuring instrument depends on the flow velocity in the ventilation duct. This can be broken down into three sub-ranges:

  • Low flow velocities: 0 to 5 m/s => thermal anemometers and thermal probes are suitable for this (order no. 0635 1535, 0635 1025)
  • Medium flow velocities: 5 to 40 m/s => best results are achieved by the 16 mm vane anemometer und Flügelrad-Sonden (order no. 0635 9535)
  • High flow velocities: 40 70 100 m/s => the pitot tube provides the best prerequisites (see following application)

The flow sensors for duct measurement are all equipped with telescopes making them easy to use in large air ducts. Air temperature and humidity can also be measured with the same probe as the flow velocity if required. According to the required application, choose between a thermal probe, vane probe or pitot tube for measuring the flow measurement in the duct.

Measurement in the ventilation duct using a pitot tube
Observance of air flows in the ventilation duct is of utmost importance for the function of the ventilation and air conditioning system.

The internal differential pressure sensor of the testo 435-3 is used for measuring in the case of high flow velocities and very contaminated flows, and the pitot tube for an air velocity ranging from 0 to 64 m/s. The testo 435-3 simultaneously displays pressure, flow and volumetric flow.
Magnets on the rear of the instrument allow hands-free work.

Measurement of indoor air quality (CO2)
Bad indoor air quality due to high concentrations of CO2 can cause tiredness, lack of concentration and even illness. Therefore, to ensure sufficient indoor air quality the CO2 concentration should generally not exceed 1 000 ppm. Values of 700 to 1 500 ppm can be viewed as the "reference range".

The IAQ probe (order no. 0632 1535) is particularly suitable for monitoring indoor air quality controls. This probe can be used to record CO2, temperature and relative humidity at the same time.

    • Domestic Shipping Rates:

      • NZ Standard Shipping $10
      • Heavy Good Shipping $20
      • Chatham and Stewart Islands $50
      • FREE shipping when you spend over $300

      Important note: Please provide a physical address for delivery. We do not deliver to PO Boxes or Parcel Pods.

       

    • Testo Instruments New Zealand
      C/- Eurotec Ltd
      750C Great South Road
      Penrose
      Auckland 1061

      Ph: 09 579 1990
      Email: sales@eurotec.co.nz