Testo 435-2 Multifunction IAQ/HVAC/R Meter

Storage temperature
-22 to +158 °F

Operating temperature
-4 to +122 °F

Battery type
Alkali manganese, mignon, Type AA

Battery life
200 hr (typical vane measurement)

Dimensions
8.66 x 2.91 x 1.81 in

Housing material
ABS/TPE/Metal

Typ T (Cu-CuNi)

Measuring range
-328 to +752 °F

Accuracy
±0.54 °F (-76 to +140 °F)
±0.5% of rdg. (remaining range)

Resolution
0.1 °C

Airflow – Vane

Measuring range
0 to +11811 fpm

Resolution
0.01fpm (60 + 100 mm Vane)
0.1 fpm (16 mm Vane)

NTC

Measuring range
-40 to +302 °F

Accuracy
±0.36 °F (-13 to +1380.2 °F)
±0.72 °F (-40 to -13.18 °F)
±0.72 °F (+167 to +211.82 °F)
±0.5% of rdg. (remaining range)

Resolution
0.1 °C

Absolute pressure probe

Measuring range
0 to +802 inH2O

Resolution
0.1 inH2O

Lux

Measuring range
0 to +100000 Lux

Resolution
1 Lux / 0.1 Hz

Hot Wire

Measuring range
0 to +3937 fpm

Resolution
0.01 fpm

CO2

Measuring range
0 to +10000 ppm CO2

Resolution
1 ppm CO2

Humidity

Measuring range
0 to +100 %RH

Resolution
0.1 %RH

Type K

Measuring range
-328 to +2498 °F

Accuracy
±0.54 °F (-76 to +140 °F)
±0.5% of rdg. (remaining range)

Resolution
0.1 °C