OVERVIEW & SPECIFICATION
Ventilation and air conditioning systems are used more and more frequently to ensure user independent fresh air supply and thermal comfort in buildings. The testo 445 climate measuring instrument helps you check the system is functioning properly and operating efficiently. This is because the measuring instrument can determine all the relevant measurement parameters for you.
| Temperature – NTC | |
|---|---|
| Measuring range | -50 to +150 °C |
| Accuracy | ±0.5 % of mv (+100 to +150 °C)
±0.2 °C (-25 to +74.9 °C) ±0.4 °C (-50 to -25.1 °C) ±0.4 °C (+75 to +99.9 °C) |
| Resolution | 0.1 °C (-50 to +150 °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 (-200 to +1370 °C) |
| Temperature – TC Type J (Fe-CuNi) | |
|---|---|
| Measuring range | -200 to +1000 °C |
| Accuracy | ±0.5 °C or ±0.5 % of mv |
| Resolution | 0.1 °C (-200 to +1000 °C) |
| Humidity – Capacitive | |
|---|---|
| Measuring range | 0 to 100 %RH |
| Accuracy | See probe data |
| Resolution | 0.1 %RH (0 t1 +100 %RH) |
| Velocity – Vane anemometer | |
|---|---|
| Measuring range | 0 to 60 m/s |
| Accuracy | See probe data |
| Resolution | 0.01 m/s |
testo-445
OVERVIEW & SPECIFICATION
Ventilation and air conditioning systems are used more and more frequently to ensure user independent fresh air supply and thermal comfort in buildings. The testo 445 climate measuring instrument helps you check the system is functioning properly and operating efficiently. This is because the measuring instrument can determine all the relevant measurement parameters for you.
| Temperature – NTC | |
|---|---|
| Measuring range | -50 to +150 °C |
| Accuracy | ±0.5 % of mv (+100 to +150 °C)
±0.2 °C (-25 to +74.9 °C) ±0.4 °C (-50 to -25.1 °C) ±0.4 °C (+75 to +99.9 °C) |
| Resolution | 0.1 °C (-50 to +150 °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 (-200 to +1370 °C) |
| Temperature – TC Type J (Fe-CuNi) | |
|---|---|
| Measuring range | -200 to +1000 °C |
| Accuracy | ±0.5 °C or ±0.5 % of mv |
| Resolution | 0.1 °C (-200 to +1000 °C) |
| Humidity – Capacitive | |
|---|---|
| Measuring range | 0 to 100 %RH |
| Accuracy | See probe data |
| Resolution | 0.1 %RH (0 t1 +100 %RH) |
| Velocity – Vane anemometer | |
|---|---|
| Measuring range | 0 to 60 m/s |
| Accuracy | See probe data |
| Resolution | 0.01 m/s |
