Dial Indicating Hygrometer

Dial Indicating Hygrometers are instruments used to measure and indicate the humidity levels in the air. They are part of the supply class Pressure, Temperature, and Humidity Measuring and Controlling Instruments, which falls under the supply group Instruments and Laboratory Equipment.

Dial Indicating Hygrometers typically consist of a dial or gauge that displays the relative humidity percentage. They work by using a moisture-sensitive element, such as a synthetic or natural hair, which expands or contracts based on the moisture content in the air. This movement is then translated into a reading on the dial, providing a visual indication of the humidity level.

These hygrometers are commonly used in various applications, including HVAC systems, weather monitoring, industrial processes, and laboratory environments. They are essential for maintaining optimal humidity levels in certain settings, as excessive or insufficient humidity can have adverse effects on equipment, materials, and human comfort.

In summary, Dial Indicating Hygrometers are instruments used to measure and display the relative humidity in the air. They are part of the Pressure, Temperature, and Humidity Measuring and Controlling Instruments class, which belongs to the Instruments and Laboratory Equipment supply group.