testo435-4
testo 435-4 Multi Function Instrument
Stock Code:
UCT-AH05634654
Equivalent to: 
testo 05634654
multi-functional meas. instr. with built-in differential pressure measurement for A/C, ventilation and Indoor Air Quality with readings memory, PC software and USB data transmission cable, with battery and calibration protocol

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Description

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.

Features: 

  • 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

Accessories

Name
testo printer with wireless IRDA and infrared interface
Spare thermal paper for printer (6 rolls), permanent ink
probeEfficient, robust NTC air probe
Radio module for measuring instrument, 869.85MHz
probeRadio handle for plug-in probe heads, incl. thermocouple adapter
Radio module, 915.00MHz FSK USA
probeUniversal RF handle FSK USA
Probe Heads for wireless probes: Immersion/penetration probe head (Type K thermocouple)
probeProbe Heads for wireless probes: Surface probe head (Type K thermocouple)
probeQuick-action surface probe with spring loaded T/C short term up to 500°C
probePipe wrap probe Type K
probeClamp probe for measurements on pipes
probeFast-action, waterproof immersion/ penetration probe Type K
External reacharger incl. rechargeable batteries
Plug-in mains adapter, 5 VDC 500mA
probeProbe Heads for wireless probes: Humidity/ temperature probe head
IAQ probe CO2, humidity, temperature
Thermal velocity probe with built-in-temperature and humidity meausurement, with telescopic handle
probe16mm telescopic vane probe
probe60 mm telescopic vane probe
probeHot wire probe for m/s
probeAbsolute pressure probe 2000 hPa
Service case for basic equipment of measuring instrument and probes
Service case for measuring instrument, probes and accessories
testovent 410, volume flow funnel ¢190mm/330x330mm

Technical Data

Probe type

NTC
Type K (NiCr-Ni)
testo humid. sensor, cap.
Lux

Meas. range

-50 to +150°C
-200 to +1370°C
0 to +25hPa
0 to +100000 Lux

Accuracy

±1 digit

±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)

±0.3°C (-60 to +60°C)

±(0.2°C +0.3% of mv) remaining range)

 

 

 

±0.02 hPa (0 to +2hPa) 1% of mv (remaining range)

 

 

 

 

See probe data

 

 

 

 

 

Resolution

0.1°C

0.1°C

0.01hPa

1 Lux / 0.1Hz

Overload

 

 

200hPa

 

Oper. temp. -20 to +50°C
Storage temp. -30 to +70°C
Battery life

200h (typical vane measurement)

Dimensions 225x74x46mm

PDF's

 
Click here for the pdf brochure Click here for more informations