Product Code: ZMFP13
£ 74.39 GBP
£ 45.00 GBP
Whirling hygrometers, also known as sling psychrometers, employ the “wet” and “dry” bulb principle to determine % RH. They are designed to be rotated, by hand, to provide adequate and consistent ventilation of the bulbs. The spirit thermometer tubes used in these hygrometers have a blue coloured LO-tox™ filling which has a similar accuracy and better legibility than the traditional mercury filling.
This traditional model has a fixed handle and protection is provided by a canvas carry case with a belt hook.