Brannan Whirling Hygrometer – Precision Humidity Measurement

The Brannan Whirling Hygrometer, also known as a sling psychrometer, is a reliable tool for measuring relative humidity (%RH) using the wet and dry bulb principle. With a temperature range of -5 to +50°C, this hygrometer features a fixed handle for consistent bulb ventilation and a blue spirit filling for clear readings. It comes with a protective carry case, calculator chart, instructions, and two spare wicks. Available with UKAS Certification on request, it is a versatile instrument for professionals and educators alike.

Key Features

Accurate Humidity Measurement Using Wet and Dry Bulb Principle: The Brannan Whirling Hygrometer employs the traditional wet and dry bulb method to deliver precise relative humidity (%RH) readings, ensuring reliability in various environmental conditions.

Celsius Scale with a Temperature Range of -5 to +50°C: Designed for versatility, this hygrometer measures temperatures within a range of -5 to +50°C, making it suitable for a wide array of applications from HVAC to environmental studies.

Fixed Handle for Consistent Ventilation of the Bulbs: The fixed handle design allows for easy rotation by hand, ensuring consistent and adequate ventilation of the bulbs for accurate humidity measurements every time.

Blue Spirit Filling for Clear Visibility: Filled with a distinctive blue spirit, the hygrometer ensures clear and easy-to-read measurements, even in low-light conditions, enhancing user convenience and accuracy.

Supplied with Protective Carry Case, Calculator Chart, and Two Spare Wicks: Each hygrometer comes complete with a durable canvas carry case, a calculator chart for determining %RH, and two spare wicks, offering everything needed for immediate use and long-term maintenance.

Available with UKAS Certification on Request: For those requiring certified precision, the Brannan Whirling Hygrometer can be supplied with UKAS Certification, ensuring compliance with rigorous quality and accuracy standards.

Replacement Refill Tubes Available: To maintain long-term accuracy and functionality, replacement refill tubes are available, ensuring your hygrometer remains a reliable tool for years to come.