Casella Instruments Humidity Slide Rule meta-related-collection-related-barograph-products easy-to-read LCD display with green

easy-to-read LCD display with green on black text

8") Height 90mm (3

Encourages outdoor exploration and hands-on learning

Made from durable aluminium

The accurate barometer displays atmospheric pressure which corresponds with the weight of the surrounding air masses and depends on the weather and your local altitude

Casella Instruments Humidity Slide Rule meta-related-collection-related-barograph-products easy-to-read LCD display with greenDescription Features Specification Simple humidity conversion table via a slide rule. Ideal for use with either a whirling hygrometer or instrument screen with masons hygrometer. After taking your dry bulb temperature, simply set the rule, and, at the wet bulb temperature, read off the percentage relative humidity figure. Suitable for use with whirling or masons hygrometer Measurements in C or F Temperature Range 15C to +60C