OVERVIEW & SPECIFICATION
The testo 435-1,-2,-3,-4 multi-function measuring instrument is available in four versions. This testo 435-1 version is the entry-level measuring instrument for adjusting and testing ventilation and air conditioning systems and for assessing air quality. Optional probes for various measurements which can be connected to the testo 435-1 are also available.
Attachable probes (optional) for assessing air quality
– IAQ probe (Indoor Air Quality) for assessing air quality – measures CO2, air temperature, air humidity and absolute pressure
– Ambient CO probe for CO measurement in buildings and rooms
– Globe thermometer for measuring radiant heat
– Temperature probe for measuring air temperature, core temperature and surface temperature
| Temperature – NTC |
| Measuring 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 |
| Temperature – TC Type K (NiCr-Ni) |
| Measuring range |
-200 to +1370 °C |
| Accuracy |
±0.3 °C (-60 to +60 °C)
±(0.2 °C + 0.5 % of mv) (Remaining Range) |
| Resolution |
0.1 °C |
| Temperature – TC Type T (Cu-CuNi) |
| Measuring range |
-200 to +400 °C |
| Accuracy |
±0.3 °C (-60 to +60 °C)
±(0.2 °C + 0.5 % of mv) (Remaining Range) |
| Resolution |
0.1 °C |
| Humidity – Capacitive |
| Measuring range |
0 to +100 %RH |
| Accuracy |
See probe data |
| Resolution |
0.1 %RH |
| Absolute Pressure |
| Measuring range |
0 to 2000 hPa |
| Accuracy |
See probe data |
| Velocity – Vane anemometer |
| Measuring range |
0 to +60 m/s |
| Accuracy |
See probe data |
| Resolution |
0.01 m/s (60 + 100 mm Vane)
0.1 m/s (16 mm Vane) |
| Velocity – Hot wire anemometer |
| Measuring range |
0 to +20 m/s |
| Accuracy |
See probe data |
| Resolution |
0.01 m/s |
| Ambient CO2 (via IAQ probe) |
| Measuring range |
0 to +10000 ppm CO₂ |
| Accuracy |
See probe data |
| Resolution |
1 ppm CO₂ |
| General technical data |
| Dimensions |
220 x 74 x 46 mm |
| Operating temperature |
-20 to +50 °C |
| Housing |
ABS / TPE / Metal |
| Protection class |
IP54 |
| Warranty |
2 years |
| Battery type |
Alkali manganese, mignon, type AA |
| Battery life |
200 h (typical vane measurement) |
| Display ligthing |
Illuminated display |
| Storage temperature |
-30 to +70 °C |
| Weight |
428 g |
testo-435-1/ 2/ 3/ 4
OVERVIEW & SPECIFICATION
The testo 435-1,-2,-3,-4 multi-function measuring instrument is available in four versions. This testo 435-1 version is the entry-level measuring instrument for adjusting and testing ventilation and air conditioning systems and for assessing air quality. Optional probes for various measurements which can be connected to the testo 435-1 are also available.
Attachable probes (optional) for assessing air quality
– IAQ probe (Indoor Air Quality) for assessing air quality – measures CO2, air temperature, air humidity and absolute pressure
– Ambient CO probe for CO measurement in buildings and rooms
– Globe thermometer for measuring radiant heat
– Temperature probe for measuring air temperature, core temperature and surface temperature
| Temperature – NTC |
| Measuring 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 |
| Temperature – TC Type K (NiCr-Ni) |
| Measuring range |
-200 to +1370 °C |
| Accuracy |
±0.3 °C (-60 to +60 °C)
±(0.2 °C + 0.5 % of mv) (Remaining Range) |
| Resolution |
0.1 °C |
| Temperature – TC Type T (Cu-CuNi) |
| Measuring range |
-200 to +400 °C |
| Accuracy |
±0.3 °C (-60 to +60 °C)
±(0.2 °C + 0.5 % of mv) (Remaining Range) |
| Resolution |
0.1 °C |
| Humidity – Capacitive |
| Measuring range |
0 to +100 %RH |
| Accuracy |
See probe data |
| Resolution |
0.1 %RH |
| Absolute Pressure |
| Measuring range |
0 to 2000 hPa |
| Accuracy |
See probe data |
| Velocity – Vane anemometer |
| Measuring range |
0 to +60 m/s |
| Accuracy |
See probe data |
| Resolution |
0.01 m/s (60 + 100 mm Vane)
0.1 m/s (16 mm Vane) |
| Velocity – Hot wire anemometer |
| Measuring range |
0 to +20 m/s |
| Accuracy |
See probe data |
| Resolution |
0.01 m/s |
| Ambient CO2 (via IAQ probe) |
| Measuring range |
0 to +10000 ppm CO₂ |
| Accuracy |
See probe data |
| Resolution |
1 ppm CO₂ |
| General technical data |
| Dimensions |
220 x 74 x 46 mm |
| Operating temperature |
-20 to +50 °C |
| Housing |
ABS / TPE / Metal |
| Protection class |
IP54 |
| Warranty |
2 years |
| Battery type |
Alkali manganese, mignon, type AA |
| Battery life |
200 h (typical vane measurement) |
| Display ligthing |
Illuminated display |
| Storage temperature |
-30 to +70 °C |
| Weight |
428 g |
