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Multi-function IAQ Meter

Multi-function IAQ Meter

Multi-function IAQ meter, Model no. [VAC-435-4]
Differential pressure range: 0 to +25 hPa
Absolute pressure range: 0 to 2000 hPa
Temperature measurement range: -200 °C to +1370 °C for TC Type K (NiCr-Ni)
Light intensity measurement range: 0 to +100000 lux


VSKU: 1010000154

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    Multi-function IAQ meter for assessing indoor air quality

    Multi-function IAQ meter [VAC-435-4] is used for indoor air quality assessments due to the wide range of attachable and wireless probes it supports. It is crucial to ensure the well-being of people at their workplaces. It is used to ensure optimum energy usage by HVAC systems. It is portable and has a simple user interface to handle all the complex functionalities with ease. It comes with a large memory space to store relevant measurements. It can be connected to a PC via USB and the data can be analysed using PC software.


    1. It is used for flow measurement in VAC ducts with the help of a pitot tube.

    2. It is used to measure thermal comfort in a room.

    3. It is used to measure the amount of heat radiated.

    4. It is used for checking filters in VAC systems by measuring differential pressure.

    5. It is used to determine U-value when renovating buildings.

    6. It is used to determine the degree of turbulence for assessing the air velocity in a room.

    7. It is used to detect even small quantities of CO in ambient air with the help of the ambient CO probe.

    8. It is used to measure air temperature and humidity in VAC.

    9. It is used to determine air and surface temperatures.

    10. It is used to carry out flow measurements in ventilation ducts with the help of thermal and vane anemometers.

    11. It is used to determine indoor air quality by measuring the concentration of CO2.

    12. It is used to calculate volumetric airflow at the outlet of ducts.

    13. It is used for measuring the light intensity in a room.


    1. It uses the IAQ sensor for assessing air quality by measuring parameters like CO2 concentration, temperature, humidity and absolute pressure.

    2. It uses easily replaceable type AA batteries.

    3. It has provision to connect high-quality sensors to it for measuring temperature, CO2, humidity, light intensity, etc.

    4. It supports a comfort sensor complying with EN 13779 to measure the degree of turbulence.

    5. It has a large LCD panel with backlight for use in dark conditions.

    6. It uses USB to transfer files to a PC and the user can analyse the readings with the help of PC software.

    7. The optional probes are specially designed according to industrial standards.

    8. It also has wireless probe support to make the measurement site less tedious.

    9. It can calculate dew point. 

    10. It uses a lux sensor probe to measure light intensity.

    11. It has IP54 certified water resistance.

    12. It has the provision to use a globe thermometer for measuring radiation heat.

    13. It has a large memory space to store measured values.



    1. Its has a large backlit LCD panel display.

    2. It has the provision to use a hot wire anemometer probe for measurement of air velocity with a resolution of 0.01 m/s in the range 0 to +20 m/s.

    3. A vane anemometer probe is also used for velocity measurement from 0 to +60 m/s.

    4. The vane anemometer does measurements with a resolution of 0.1 m/s (16 mm vane) and 0.01 m/s (60 + 100 mm vane).

    5. It can measure ambient COconcentration from 0 to 10000 ppm with a resolution of 1 ppm CO2 using the IAQ probe.

    6. The lux sensor probe has a resolution of 1 Lux which can measure light intensities from 0 to +100000 lux.

    7. It can measure differential pressure using an internal piezoresistive sensor to measure differential pressure with a measuring range of 0 to +25 hPa and overload value of 200 hPa.

    8. The piezoresistive sensor can do measurements with a resolution of 0.01 hPa and accuracy of ± 0.02 hPa (0 to +2 hPa) and ± 1 % of mv (remaining range).

    9. The instrument is powered by 3 AA batteries.

    10. It can last for about 200 hours for typical vane measurements.

    11. Absolute pressure measurements can be performed from 0 to 2000 hPa with an accuracy of ± 5 hPa and a resolution of 0.1 hPa.

    12. It is IP54 certified.

    13. It has provision to use NTC, TC Type T (Cu-CuNi) and TC Type K(NiCr-Ni) probes for temperature measurements.

    14. The NTC probe has a resolution of 0.1 °C is for the temperature range of -50 to +150 °C.

    15. The TC Type K has a measurement range of -200 to +1370 °C with an accuracy of ± (0.3 °C + 0.1 % of mv) and ± (0.2 °C + 0.5 % of mv) (remaining range) and a resolution of 0.1 °C.

    16. The TC Type T probe is used for temperature between -200 °C and +400 °C with a resolution of 0.1 °C and accuracy of ± (0.3 °C + 0.1 % of mv) and ± (0.2 °C + 0.5 % of mv) (remaining range).

    17. A capacitive humidity sensor with a resolution of 0.1 %RH is used for humidity measurements.

    18. It can measure humidity over the entire range of 0 to 100 %RH.

    19. The instrument weighs 428 g.

    20. It is of dimensions 220 X 74 X 46 mm.

    21. It has a housing made of ABS, TPE and metal which is suitable for rugged use.

    22. It is advised to operate the device between -20 °C and +40 °C for proper measurements.

    23. It is advised to store the device under temperatures between -30 °C and +70 °C.

    24. It can store up to 10000 measured values in its memory.

    We supply these multi-function IAQ meters for assessment of indoor air quality in the USA, UK, Germany, France, Netherlands, Spain, Switzerland, Sweden, and other European countries. Also, we supply these for HVAC maintenance in the Middle East and other Asian countries including India, Pakistan, Afghanistan, Bangladesh, Singapore, etc.

    Our African offices supply these multi-function IAQ meters for measuring airflow in ducts across all African countries covering South Africa, Kenya, Nigeria, Tanzania, Rwanda, Djibouti, Morocco, Ghana, Ethiopia, Uganda, Morocco, Tunisia, Cameroon, Mauritius, Gabon, Seychelles, etc.

    Our Middle East offices supply these multi-function IAQ meters for determining U-value for the renovation of buildings in the United Arab Emirates, Kingdom of Saudi Arabia, Qatar, Oman, Kuwait, Egypt, Lebanon, Bahrain, Libya, Iraq, Erbil, Jordan, etc.

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