Hygrometers and Humidity Meters

Hygrometers and humidity meters measure the amount of moisture present in the air. These instruments provide reliable readings of relative humidity, helping users monitor environmental conditions in workplaces, laboratories, storage areas and other controlled environments.

A hygrometer is a device used to measure humidity, the amount of water vapour in the air, typically expressed as relative humidity (RH), which shows how much moisture the air contains compared with the maximum amount it could hold at that temperature.

Many modern hygrometers also measure air temperature at the same time, allowing the device to calculate additional values such as dew point and wet-bulb temperature, which can be useful when assessing environmental conditions.

2 products

Humidity Measurement for Environmental Monitoring

Humidity plays an important role in many environments because excessive moisture or very dry air can affect comfort, materials, equipment and stored products. Hygrometers provide a practical way to monitor humidity levels so that corrective action can be taken if conditions move outside acceptable limits.

Modern hygrometers use a variety of sensing technologies, including capacitive or resistive humidity sensors, which detect changes in electrical properties as moisture levels change. These sensors allow electronic hygrometers to provide fast and accurate readings of relative humidity and temperature.

Humidity meters are commonly used for:

  • Monitoring indoor air quality and workplace conditions
  • Checking ventilation and HVAC performance
  • Preventing condensation, damp and mould
  • Maintaining suitable storage conditions for sensitive materials

Maintaining appropriate humidity levels can help protect equipment, reduce the risk of mould growth and improve overall environmental conditions. Monitoring humidity is particularly important in areas such as laboratories, archives, industrial facilities and climate-controlled storage areas.

Thermometer Superstore offers a range of hygrometers and humidity meters suitable for professional and general environmental monitoring applications.

Hygrometers & Humidity Meters

What is a hygrometer?

A hygrometer is an instrument used to measure humidity, which is the amount of water vapour present in the air

What does a humidity meter measure?

A humidity meter measures relative humidity (RH), the percentage of moisture in the air compared with the maximum amount the air can hold at a given temperature.

What is the difference between a hygrometer and a humidity meter?

The terms are often used interchangeably. A hygrometer refers broadly to instruments that measure humidity, while a humidity meter often refers to a digital device that measures humidity and sometimes temperature as well.

Where are hygrometers commonly used?

Hygrometers are used in workplaces, laboratories, industrial environments, greenhouses, storage facilities and HVAC systems where monitoring humidity is important for maintaining stable conditions.

Why is humidity monitoring important?

Monitoring humidity helps prevent problems such as mould growth, condensation and material damage, while also maintaining comfortable indoor environments.