Brannan 13/744/2 Whirling Hygrometer Swing Thermometer | Wet & Dry -5°C to +50°C

The Brannan 13/744/2 Whirling Hygrometer Swing Thermometer is a precision instrument designed for measuring relative humidity and ambient temperature using the traditional wet and dry bulb method.

Replacing the older 13/745/2 model, this upgraded version features improved accuracy, durable construction, and easy-to-read dual thermometers.
By whirling the instrument in the air, it measures air temperature and humidity levels based on the evaporation rate from the wet bulb — ideal for use in laboratories, HVAC testing, environmental monitoring, and meteorological applications.

Built by Brannan, a leading British manufacturer of scientific instruments, the 13/744/2 combines classic design with precise performance, making it a reliable choice for professionals and educators alike.

Key Features

• Measures relative humidity and air temperature using the wet and dry bulb principle

• Dual high-accuracy thermometers with clear °C scale markings

• Sturdy plastic frame with rotating handle for whirling operation

• Includes water reservoir and wick for wet bulb measurement

• Portable and simple to use — no external power required

• Supplied in a protective storage case

• Ideal for meteorology, HVAC, and environmental applications

• Replaces previous model: 13/745/2

Specification

Package Includes

• 1 × Brannan 13/744/2 Whirling Hygrometer

• 2 × Pcs of Replacement Wicks

• 1 × Water Reservoir

• 1 × Psychrometric Chart / Calculator Chart

• 1 × Protective Bag

Why Choose Brannan Instruments

With over a century of experience in precision measurement, Brannan UK instruments are known for accuracy, reliability, and craftsmanship.
The 13/744/2 Hygrometer delivers dependable humidity readings for industrial, laboratory, and educational use — a trusted successor to the 13/745/2 model.

Order by 4PM to get delivered next working day! We use 24 hours service with carriers in most cases so that you can get your order delivered on time.

Free delivery for total orders above RM500, otherwise additional charges costs are calculated at checkout based on your order’s weight and delivery location.

Further details please click here for more info.

Please notify us within 14 calendar days of receiving your product to request a free exchange or full refund, if eligible. We will cover all return shipping costs, and no restocking fees will apply in this case.

Requests made after 14 days may be accepted at our discretion and will be subject to a 10% restocking fee. Techno Tools & Equipment reserves the right to reject any return request found to be ineligible.

Further details please click here for more info.