https://cablematic.com/en/products/pce-thb-38-hygrometer-PC546/
PCE-THB 38 Hygrometer
- Thermohygrometer to detect and digitally display humidity, relative temperature and barometric pressure.
- RTD sensor to measure temperature and high repeatability capacitive sensor to measure air humidity.
- Calculate the dew point.
- Atmospheric pressure measurement range: 10 - 1100 hPa.
- Factory calibrated equipment.
2 yearswarranty
14 daysreturns
100%safe
- Thermohygrometer to detect and digitally display humidity, relative temperature and barometric pressure.
- RTD sensor to measure temperature and high repeatability capacitive sensor to measure air humidity.
- Calculate the dew point.
- Atmospheric pressure measurement range: 10 - 1100 hPa.
- Factory calibrated equipment.
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Keywords
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More info
A thermohygrometer is a device that combines three functions in one: thermometer, hygrometer, and barometer. It is specially designed to accurately measure humidity, temperature and atmospheric pressure. This allows reliable data on climate and meteorology to be obtained. The thermo-hygrometer has an RTD sensor to measure temperature and a capacitive sensor to detect humidity. In addition, it is capable of calculating the dew point. The device can also display atmospheric pressure in the range of 10 to 1100 hPa. This function is useful for weather forecasting. The thermo-hygrometer can be calibrated at the factory to ensure its accuracy. Optionally, a certified calibration according to ISO standards can also be obtained. This makes it an ideal device for monitoring weather and meteorology. Manufactured by PCE, with reference PCE-THB 38
Specifications
- Thermohygrometer to detect and digitally display humidity, relative temperature and barometric pressure.
- RTD sensor to measure temperature and high repeatability capacitive sensor to measure air humidity.
- Calculate the dew point.
- Atmospheric pressure measurement range: 10 - 1100 hPa.
- Factory calibrated equipment.
- Optionally, you can obtain a laboratory calibration with a certificate according to ISO standards.
- Gross Weight: 343 g
- Number of packages: 1
Technical terms
- Hygrometer
A hygrometer is a precision instrument designed to measure relative humidity in the atmosphere or within specific technical enclosures using water vapor sensitive transducers.
Implementation of these devices in modern systems is primarily based on the variation of physical properties in dielectric or semiconductor materials. In industrial environments and data centers, electronic hygrometers utilize capacitive or resistive sensors that modify their impedance proportionally to environmental saturation. This data is processed via microcontrollers to facilitate real-time monitoring and automation of HVAC systems through industrial communication protocols.
| Technical Parameter | Standard Specification |
|---|---|
| Measurement Range | 0% to 100% RH |
| Typical Accuracy | ±1.5% to ±3% RH |
| Response Time | < 10 seconds (t90) |
| Output Interface | I2C, 4-20mA, 0-10V |
The integration of digital hygrometers into critical infrastructure enables proactive condensation management, a decisive factor in preventing corrosion-related failures and short circuits in high-density hardware. Their recent evolution toward MEMS technology has facilitated miniaturization and the incorporation of these sensors into massive IoT deployments, where energy efficiency and long-term stability are fundamental requirements for predictive maintenance.
Capacitive Transduction Technology
Most advanced electronic hygrometers employ a dielectric polymer placed between two electrodes. As it absorbs water vapor, the polymer's dielectric constant changes, altering the circuit's total capacitance. This method is noted for its linearity and relative resistance to chemical contaminants.
Main Advantages
- High thermal stability across wide operating ranges.
- Low power consumption, ideal for remote sensors.
- Direct integration capability with PLC control systems.
- Fast response to critical humidity fluctuations.
Note: Periodic calibration under traceable standards is necessary to mitigate sensor drift.
