testo 435-1 - Multi-function Instrument for VAC & IAQ

  • You have the option of connecting thermal anemometers and vane anemometers for measuring air velocity and volumetric flow in ventilation ducts
  • Air quality: measurement of CO2, air humidity, air temperature and absolute pressure with the optional IAQ probe
  • Display of dew point distance, min., max. and mean values
  • Illuminated display

testo 435 is a series of multi-function climate measuring instruments made by Testo. The testo 435-1 version is the entry-level measuring instrument in this series. You can use this to carry out measurements which you need to adjust ventilation and air conditioning systems and assess air quality. For this we offer you a comprehensive range of optional probes and sensors to choose from.

testo 0560 4351

In stock Yes No
Price was € (Inc. VAT) RRP € Price was € (Ex. VAT) RRP €

The testo 435 multi-function climate measuring instrument is available in four versions. This testo 435-1 version is the entry-level measuring instrument for adjusting and testing ventilation and air conditioning systems and for assessing air quality. You have a choice of different optional probes available for measurement, all of which can be connected to the testo 435-1.

Attachable probes (optional) for assessing air quality

  • IAQ probe (Indoor Air Quality) for assessing air quality - measures CO2, air temperature, air humidity and absolute pressure
  • Ambient CO probe for CO measurement in buildings and rooms
  • Globe thermometer for measuring radiant heat
  • Temperature probe for measuring air temperature, core temperature and surface temperature

Attachable probes (optional) for adjusting and testing ventilation and air conditioning systems

  • Thermal anemometers for measuring air velocity and volumetric flow in ventilation ducts. If you also want to measure the temperature and air humidity in ducts, we recommend you use the thermal anemometer with integrated temperature and air humidity measurement
  • Vane anemometer with a small diameter (Ø 16 mm) for measuring air velocity and volumetric flow in ventilation ducts
  • Vane anemometer with a large diameter (Ø 100 mm) for measuring volumetric flow at the air outlet, also for measurements at poppet valves and ventilation grilles in combination with the testovent 417 funnels or for measurements at swirl outlets with the volume flow straightener
  • Temperature probe for measuring air temperature, core temperature and surface temperature
  • Absolute pressure probe

The service cases which are also available offer you space for the climate measuring instrument and your whole range of probes.

Radio probe for temperature measurements

In addition to the attachable probes, you can also connect up to three radio probes to the measuring instrument: with the radio module which is available as an option, the testo 435-1 climate measuring instrument can take temperature measurements wirelessly from radio probes over a distance of up to 20 meters (without obstruction). This enables you to avoid damage to cables or hindrances to handling.

The testo 435-2, testo 435-3 or testo 435-4 versions offer even more possibilities for adjusting and testing air conditioning systems and measuring air quality. Some of these are fitted with integrated differential pressure measurement. Furthermore, additional probes, such as lux probes or probes for turbulence level measurement, can be attached to these versions.

Complex technology, but really easy handling

The testo 435-1 multi-function climate measuring instrument is characterized by an efficient measuring process which makes any inconvenient programming of the measuring instrument superfluous:
probe-dependent menus and selectable user profiles for the typical applications of „duct measurement“ and „IAQ measurement“ ensure the easiest imaginable handling.

All readings are easy to read on the large display which has an illumination function. In addition, dew point distance, min., max. and mean values are displayed. A solid housing provides reliable protection against impacts for the testo 435-1 multi-function climate measuring instrument.

Documentation of measurement data on site

The testo fast printer, which is available as an option, means you can create a report printout of measurement data directly on site. For a duct measurement, you can for instance print out the current readings or the min./max. values for air velocity, volumetric flow, temperature and air humidity. You can use the printout as evidence of your work.

Use the practical cyclical printing function on the testo 435-1 as well. It not only enables the printout of individual readings, but also of whole series of measurements on the testo fast printer at freely adjustable intervals (for example once a minute).

We recommend you use the testo 435-2 or testo 435-4 versions for saving, documenting and archiving measurement data. They are equipped with a reading memory and PC software.

Includes:

testo 435-1 multi-function climate measuring instrument, including calibration protocol and 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
           
Velocity - Vane anemometer
Measuring range
0 to +60 m/s
Accuracy
See probe data
Resolution
0.01 m/s (60 + 100 mm Vane)
0.1 m/s (16 mm Vane)
           
Velocity - Hot wire anemometer
Measuring range
0 to +20 m/s
Accuracy
See probe data
Resolution
0.01 m/s
           
Ambient CO2 (via IAQ probe)
Measuring range
0 to +10000 ppm CO₂
Accuracy
See probe data
Resolution
1 ppm CO₂
           
General technical data
Dimensions
220 x 74 x 46 mm
Operating temperature
-20 to +50 °C
Housing
ABS / TPE / Metal
Protection class
IP54
Battery type
Alkali manganese, mignon, type AA
Battery life
200 h (typical vane measurement)
Display ligthing
Illuminated display
Storage temperature
-30 to +70 °C
Weight
428 g

Write a review