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Testo 435-4 multifunctional indoor air quality detector
Origin: Germany Product Overview: testo435-4 is an ideal tool for installing and debugging air conditioning systems
Product details
Place of Origin:Germany
Product Overview:
Testo 435-4 is an ideal tool for installing and debugging air conditioning systems. This multifunctional measuring instrument is suitable for on-site detection of multiple parameters such as temperature, humidity, pressure, and wind speed of air conditioning and ventilation systems, ensuring that the system is in the best working condition, meeting the set requirements, and achieving energy-saving effects.
Testo 435-4 multifunctional measuring instrument with built-in differential pressure measurement, used for air conditioning and ventilation systems and indoor air quality testing, with data storage, PC software, USB data cable, battery, and calibration certificate.
Product features:
Probe suitable for various needs
Indoor air quality probe: The latest developed indoor air quality probe can measure CO2, relative humidity, and indoor air temperature to evaluate the quality of indoor air. This probe can also measure absolute pressure.
Turbulence probe: The human body is very sensitive to suction force. With the help of the turbulence probe from Detu, an objective evaluation of the blowing sensation caused by indoor air flow velocity can be made.
Illuminance probe: Poor lighting conditions can affect work efficiency. The new illumination probe accurately and reliably records the lighting conditions in the workplace.
Elastic surface probe: Elastic surface probes have excellent performance in measuring surface temperature. The elastic surface of the probe better contacts the object being measured, achieving fast and accurate measurements.
Thermal Wind Speed Probe: The new generation of thermal wind speed probes is equipped with temperature and humidity sensors, which can measure both temperature and humidity simultaneously. It is suitable for measuring ventilation ducts and other areas. In this way, wind speed, air volume, air humidity, and air temperature are all measured in the same process.
Impeller probe: optional 60mm diameter, suitable for integrated measurement at ventilation openings and other locations. For the inspection of ventilation ducts, it is ideal to use a 16mm diameter impeller probe, which has a wide range of 0.6~40m/s.
Pitot tube: Pitot tubes are most suitable for use in high wind speeds and polluted airflow. The testo 435-4 is equipped with a 25hPa differential pressure probe, specifically designed for this type of measurement.
Comfortable user interface
The uniqueness of testo 435 lies in its user-friendly functional design and simple and user-friendly menu operation. For measurements at different measurement points, testo 435-4 has the advantage of directly saving the readings to the corresponding measurement point directory. For the measurement of pipeline and indoor air quality, testo 435 can be freely switched between different user menus.
User menu - Pipeline measurement
Some key functions of pipeline measurement, such as calculating time periods/multi-point averages and inputting cross-sectional areas, can be directly accessed by pressing the function keys to enter the operation interface. You can choose the type of cross-sectional area on site, such as circular or rectangular. Moreover, the instrument is equipped with 5 preset sizes, which users can directly select through the function keys to calculate the air volume value and display it directly on the screen.
User Menu - Indoor Air Quality
The key to detecting indoor air quality is long-term measurement. Users can set and program measurement programs on the testo 435 instrument, freely choose measurement parameters, and record long-term measurement data.
Absolute compact design concept
The reliability of performance is the key to judging the quality of measuring instruments. The waterproof rating of testo 435 reaches IP 54, which is sturdy, durable, and reliable in performance. The shell is made of special materials and has the function of shock and impact resistance. The spacious backlit display screen is embedded in the casing and is not easily damaged. The instrument is also equipped with a strap design for easy transportation and carrying. The magnet on the back of the instrument is convenient for fixing and placing the instrument during measurement.
Reliable measurement data management
The testo 435 is equipped with powerful measurement data processing capabilities, which can be processed using professional measurement software on a computer or printed on-site using a portable Detu printer.
The measurement report provides users with data such as ventilation ducts, dates, and turbulence levels, and can also import company logos into the report. The testo 435-4 is used in conjunction with the corresponding software to achieve the function of connecting to a computer for data processing. Whether it is a single measurement task or a series of measurement tasks, they can be saved in the instrument (up to 10000 sets of data) and analyzed using software on the computer for chart analysis.
The testo 435 is equipped with an infrared interface, which can wirelessly transmit data to the Detu printer on site. The measurement time and location can be printed simultaneously with the measurement data.
Basic parameters of testo 435-4 multifunctional measuring instrument
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temperaturecondition |
Operate at -20~50 ℃, store at -30~70 ℃ |
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Battery |
AA type alkaline manganese battery, with a battery life of about 200 hours (based on wind speed measurement) |
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volumeweight |
220 x 74 x 46 mm，428 g |
Recommended indoor air quality testing kit configuration probe parameters:
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Probe name |
Measurement parameters/description |
range |
resolution |
accuracy |
order goods |
|
Host and built-in differential pressure probe |
Micro pressure difference |
0～25hPa |
0.01hPa |
±0.02 hPa(0～2hpa)； |
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Indoor air quality multifunctional probe |
temperature |
0～50℃ |
0.1℃ |
±0.3℃ |
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relative humidity |
0～100%RH |
1%RH |
±2% RH |
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Carbon dioxide CO2 |
0～10000ppm |
1ppm |
±(50ppm±2%RD)(0～5000ppm )； |
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absolute pressure |
600～1150 hPa |
0.01hPa |
±5hPa |
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Environmental CO probe |
Detecting the concentration of carbon monoxide and CO in indoor environments |
0～500ppm |
1ppm |
±5ppm(0～100ppm )； |
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Hot wire wind speed probe |
Measure the wind speed of the air duct with a telescopic handle (Max. 820mm) |
0～20m/s |
0.01m/s |
±（0.03m/s+5%RD） |
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Stainless steel pitot tube |
350mm long, connected to differential pressure probe, measuring wind speed |
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Technical parameters of other optional probes for testo 435-4:
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probe Type |
Brief description |
range |
accuracy |
order goods |
|
Illumination probe |
Measure illuminance |
1-100000Lux |
5% or 6% RD |
|
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Comfort probe |
Equipped with a telescopic handle (up to 820 mm in length) |
0～+50℃； |
±0.3℃ |
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Impeller wind speed probe |
Ø 60mm, with telescopic handle (up to 910 mm), such as measuring the air outlet |
+0.25～20m/s |
±(0.1 m/s+1.5%RD) |
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Impeller wind speed probe |
Diameter 16 mm, with telescopic handle (up to 890 mm), such as measuring pipes |
+0.6～+40m/s |
±(0.2 m/s+1.5%RD) |
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Thermal sensitive wind speed, temperature and humidity probe |
Equipped with built-in temperature and humidity measurement, Ø 12 mm, with telescopic handle (up to 745 mm in length) |
-20～+70℃； |
±0.3℃ |
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±2 %RH (+2～+98 %RH)； |
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±(0.03 m/s+4%RD) |
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Temperature and humidity probe |
Measurement of air temperature and humidity |
-20～+70℃； |
±0.3℃； |
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±2 %RH (+2～+98 %RH) |
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NTC temperature probe |
Efficient air temperature measurement |
-50～+150℃ |
±0.5%RD(100～150℃)； |
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Surface probe |
Fast response, equipped with elastic K-type thermocouple, capable of measuring uneven surfaces, and can reach+500 ℃ in a short time |
-60～+300℃ |
level 2 |
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Airflow hood set |
Includes 1 air hood for air outlet (diameter 200mm) and 1 hood for ventilation equipment (300mm) |
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Pitot tube |
There are three sizes available: 350mm long, 500mm long, and 1000mm long, |
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