Testo 435-1, Multi-function Instrument for VAC & IAQ

Testo 435-1 Multi-functional measuring instrument, for A/ C, ventilation and Indoor Air Quality, with battery and calibration protocol

The measuring instrument for ambient air conditions, for assessing Indoor Air Quality and adjusting and inspecting VAC systems. testo 435-1 is an affordable introduction to measurement engineering for ambient air conditions. The new IAQ probe measures Indoor Air Quality by measuring CO2 level, air moisture and air temperature. Temperature and humidity measurement is integrated in the new thermal probe. In addition, it is also possible to connect additional temperature probes. Readings from up to 3 temperature probes can be displayed in the clearly laid-out measuring instrument display; data transmission is radio-controlled, therefore wireless. Measurement data is printed on site on the Testo printer.

IAQ probe for assessment of Indoor Air Quality
Vane measurement and thermal probes
Radio probe for temperature
Testo fast printer for documentation
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 428 g
Dimensions 220 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) 
± ( 0.2 ° 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 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 0.01m/ s ( 60 vane) 
0.1 m/ s ( 16 vane) 

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