The probe can also be connected to the testo 435-2 and testo 435-4 measuring instruments (however without the possibility of the measuring material equilibrium moisture content).
In combination with the testo 635, the robust humidity probe measures the humidity and temperature of the air. Because the probe can be used up to 125 °C, it also enables measurements in air exhaust ducts. In addition, it is suitable for measuring the material equilibrium moisture content, for example in bulk materials.
The probe can also be connected to the testo 435-2 and testo 435-4 measuring instruments (however without the possibility of the measuring material equilibrium moisture content).
| Temperature – NTC | |
|---|---|
| Measuring range | -20 to +125 °C |
| Accuracy | ±0.4 °C (0 to +50°C),
±0.5 °C (-20 to 0°C, +50 to +80°C) +1.2 % of mv (Remaining Range) |
| Humidity – Capacitive | |
|---|---|
| Measuring range | 0 to +100 %RH |
| Accuracy | ±2 %RH at +25 °C (+0 to +100 %RH)
±0.03 %RH/K (k=1) long-term stability: ±1 %RH / year *The sensor accuracy corresponds to the system accuracy. |
| General technical data | |
|---|---|
| Diameter probe shaft | 12 mm |
| Length probe shaft | 300 mm |
