Zeal Whirling Hygrometer (Red Spirit) for Humidity Measurement Whirling Pattern Hygrometer
Whirling hygrometers P2528
Red spirit -5° to +50°C (Alcohol Type)
Whirling Hygrometer (psychrometer) - wet and dry bulb.
Housed in a yellow plastic case with folding Handle.
Supplied with Hygrometric tables, spare wick and instructions. Sold singles.
High quality Whirling Pattern Hygrometer