testo 435-4

Productdescription

The ambient air conditions measuring instrument, for asssessing Indoor Air Quality and tuning and testing VAC systems, stands out on account of its efficient measurement process. The user-friendly measuring instrument has the right measurement engineering for every application and different flow speeds; for example, thermal probes, vane or Pitot tube measurement. Probe-controlled menus and selectable user profiles, e.g. for duct measurement or long-term measurement, ensure the user-friendliest operation possible. The new IAQ probe measures Indoor Air Quality by measuring the CO2 level, air moisture and air temperature. In addition, lux and comfort level probes can be connected to measure draught air. Clear analysis and archiving ensure convenient documentation. Temperature and humidity measurement is built-in in the new thermal probe. The special flow protocol professionally documents duct measurements. It is also possible to connect additional temperature and humidity probes. Readings from up to 3 temperature or humidity probes can be displayed in the measuring instrument; data transmission is by radio, i.e. wireless.

  • Instrument memory for 10,000 readings
  • PC software for analysis, filing and documentation of measurement data
  • IAQ probe, lux probe and comfort level probe
  • Thermal probes, vane measurement and built-in differential pressure probe probe for Pitot tube measurement
  • Radio probe for temperature and humidity
  • Protection class IP54

Technical Data
Storage temperature -30 to +70 °C
Operating temperature -20 to +50 °C
Battery type Alkali manganese, mignon, Type AA
Battery life 200 h (typical vane measurement)
Weight 450 g
Dimensions 225 x 74 x 46 mm
Material/Housing ABS/TPE/Metal
Probe type Typ T (Cu-CuNi)
Meas. range -200 to +400 °C
Accuracy ±0.3 °C (-60 to +60 °C)±0.3% of mv (remaining range)
Resolution 0.1 °C
Probe type NTC
Meas. 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
Probe type Type K
Meas. Range -200 to +1370 °C
Accuracy ±0.3 °C (-60 to +60 °C)±(0.2 °C +0.3% of mv) (remaining range)
Resolution 0.1 °C
Probe type CO2
Meas. Range 0 to +10000 ppm CO2
Resolution 1 ppm CO2
Probe type Differential pressure
Meas. Range 0 to +25 hPa
Accuracy ±0.02 hPa (0 to +2 hPa)1% of mv (remaining range)
Resolution 0.01 hPa
Probe type Lux
Meas. Range 0 to +100000 Lux
Resolution 1 Lux; 0.1 Hz
Probe type Absolute pressure probe
Meas. Range 0 to+2000 hPa
Resolution 0.1 hPa
Probe type humid. sensor, cap.
Meas. Range 0 to +100 %RH
Resolution 0.1 %RH
Probe type Hot Wire
Meas. Range 0 to +20 m/s
Resolution 0.01 m/s
Probe type Vane
Meas. Range 0 to +60 m/s
Resolution 0.01 m/s (60 vane)0.1 m/s (16 vane)
Brochures
MeasurementParameters_ambientairquality_en.pdf (48 views)
testo 435-4 multi-function measuring instrument with built-in differential pressure measurement for air conditioning, ventilation and Indoor Air Quality, with data memory, PC software and USB data transfer cable, includes battery and calibration protocol
  • Instrument memory for 10,000 readings
  • PC software for analysis, filing and documentation of measurement data
  • Radio probe for temperature and humidity
  • Protection class IP54
Online not buyable Ordernumber: 0563 4354
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