A thermo hygrometer is an instrument that combines the capabilities of a thermometer and a hygrometer. It measures temperature and relative humidity in the surrounding air.

Thermohygrometers typically use sensors to measure temperature and humidity. For temperature, a thermocouple or resistance temperature detector (RTD) is commonly used. Humidity is measured using a capacitive or resistive humidity sensor. These sensors provide electrical signals that are then converted into temperature and relative humidity readings.

Measuring both temperature and humidity is important in various applications, including weather monitoring, HVAC control, industrial processes, and environmental monitoring. Understanding both factors helps in assessing comfort, preventing condensation, and ensuring product quality in various industries.

Temperature is typically measured in degrees Celsius (°C) or degrees Fahrenheit (°F). Relative humidity is expressed as a percentage (%).

The accuracy of thermo hygrometer readings can vary depending on the quality of the instrument. High-quality thermohygrometers can provide accurate measurements with a margin of error typically specified by the manufacturer.