Brannan Masons Wet & Dry Bulb Hygrometer

The Brannan Masons Wet & Dry Bulb Hygrometer provides a reliable and constant method for measuring relative humidity. This classic instrument is encased in a durable white plastic case with clear, easy-to-read red spirit-filled tubes for accurate temperature readings. It is an essential tool for environments where consistent monitoring of atmospheric moisture is required, from industrial settings to storage facilities and museums.

Featuring a scaled range from -5°C to +50°C, this hygrometer is versatile enough for a wide variety of indoor climate conditions. It is supplied with a dedicated calculation chart, allowing users to easily determine the relative humidity based on the wet and dry bulb temperature differentials. This straightforward manual method is both effective and dependable, requiring no batteries or complex electronics.

The compact and robust design makes it suitable for permanent wall mounting in the desired location. Its clear presentation and simple operation ensure that humidity levels can be monitored at a glance, helping to protect sensitive materials, optimise processes, and maintain comfortable or controlled environments.

Key Features & Specifications

• Measurement Type: Wet and dry bulb psychrometer for determining relative humidity.
• Case: White plastic housing for durability and clear visibility.
• Thermometers: Dual red spirit-filled tubes for accurate temperature readings.
• Temperature Scale: Clearly marked from -5°C to +50°C.
• Included Accessory: Supplied with a calculation chart for humidity determination.
• Dimensions (H x W x D): 43 mm x 33 mm x 15 mm.
• Weight: 100 grams.

Ideal for professionals and facilities managers, the Brannan Masons Hygrometer offers a proven, no-fuss solution for essential environmental monitoring.