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Hot wire probe head including temperature and humidity sensor
0635 1570Hot wire probe head including temperature and humidity sensor
0635 1570Intuitive: parallel determination of relative humidity and air temperature in indoor areas, including long-term measurement
Precise: includes absolute pressure compensation, calculation of wet bulb temperature, dew point and absolute humidity
Convenient: simply plug the probe head onto the extendable telescope for air velocity probes – and use the adapter to attach them to the universal handle with Bluetooth® or cable (available to order separately)
Intelligent calibration concept: only send in the probe head for calibration
More applications, less equipment: if you already own one of our probes with a universal handle, you can easily expand your portfolio of probes with the hot wire probe head.
Hot wire probe head including temperature and humidity sensor and calibration protocol.
Temperature - NTC
| Measuring range | -4° to 158 °F / -20 to +70 °C |
|---|---|
| Accuracy | ±1.4 °F (-4° to 32 °F) / ±0.8 °C (-20 to 0 °C) ±0.9 °F (32° to 158 °F) / ±0.5 °C (0 to +70 °C) |
| Resolution | 0.1 °F / 0.1 °C |
Humidity - Capacitive
| Measuring range | 5 to 95 %rH |
|---|---|
| Accuracy | Hysteresis: ±1.0 %rH ±3 %rH (65 to 90 %rH) ±2 %rH (35 to 65 %rH) ±5 %rH (Remaining Range) ±0.06 %rF/K (k=1) ±3 %rH (10 to 35 %rH) long-term stability: ±1%RH / year |
| Resolution | 0.1 %rH |
Absolute Pressure
| Measuring range | +280 to +440 InHâ‚‚O / +700 to +1100 hPa |
|---|---|
| Accuracy | ±1.2 InH₂O / ±3.0 hPa |
| Resolution | 0.1 InHâ‚‚O / 0.1 hPa |
Accessories
- Testo 440 Data Sheet(pdf, 5.95 MB)