Sensor types

testo 435-2/-4

testo 435-3/-4

Lux

Measuring range

0 to +100000 Lux

Accuracy

±1 digit

See probe data

Resolution / Overload

1 Lux; 0.1 Hz

Differential pressure probe, internal

0 to +25 hPa

±0.02 hPa (0 to +2 hPa)

±1% of mv (remaining range)

0.01 hPa / 200 hPa

testo 435

Technical data

testo 435-1

testo 435-2

testo 435-3

testo 435-4

XXXX

XXXX

X

X

X

X

X

XX

X

X

X

XX

XXX

X

X

XX

X

XX

XX

XX

XX

XX

XX

XXXX

IAQ probe for the measurement of CO

and absolute pressure

Thermal flow velocity probe with integrated temperature and air humidity

measurement

Vane and hot wire probes

Temperature probe for immersion/penetration, air and surface measurements

Wireless probes for temperature measurements

Ambient CO probe

Absolute pressure probe

Integrated differential pressure measurement for flow velocity measurement

with Pitot tube and for monitoring filters (not retro-fittable)

Comfort probe for degree of turbulence measurement for the objective

evaluation of the air velocity in a room

Humidity probe for air temperature and air humidity measurements

Wireless probe for air temperature and air humidity measurement

Lux probe for the measurement of light intensity

Temperature probe for determining U-value

Instrument equipment

Easy operation with user profiles

XXXX

Illuminated display

XXXX

Testo fast printer for documenting measurement data (optional)

XX

Instrument store for 10000 measurement values (not retro-fittable)

XX

PC software for the analysis, archiving and documentation of the readings

Connectable probes (optional)

Overview of versions testo 435

The table provides a fast overview of the connectable probes and the instrument equipment per version.

We measure it.

Sensor types

testo 435-1/-2/-3/-4

NTC

Measuring range

-50 to +150 °C

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)

Resolution

0.1 °C

Type K (NiCr-Ni)

-200 to +1370 °C

±0.3 °C (-60 to +60 °C)

±(0.2 °C +0.5% of mv)

(remaining range)

0.1 °C

Type T (Cu-CuNi)

-200 to +400 °C

±0.3 °C (-60 to +60 °C)

±(0.2 °C +0.5% of mv)

(remaining range)

0.1 °C

Testo humid. sensor,

cap.

0 to +100 %RH

See probe data

0.1 %RH

Vane

Measuring range

0 to +60 m/s

Accuracy ±1 digit

See probe data

Resolution

0.01m/s (60 + 100 mm Vane)

0.1 m/s (16 mm Vane)

Hot wire

0 to +20 m/s

See probe data

0.01 m/s

Absolute pressure probe

0 to +2000 hPa

See probe data

0.1 hPa

CO

0 to +10000 ppm CO

2

See probe data

1 ppm CO

2

testo-435-P03

06.08.2013

14:31

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