Whirling Hygrometer (Sling Psychrometer)

This professional whirling hygrometer (sling psychrometer) offers the maximum level of accuracy for the measurement of relative humidity utilising wet and dry bulb Red Spirit filled thermometers. The unit incorporates a water reservoir linked to the wet bulb by the means of a cotton sleeve.
The thermometer tubes measure temperature over the range of -5 to +50°C enabling the % RH to be calculated utilising the chart supplied.
The accuracy of RH is +-5% and the temperature +- 1oC
• NOT - Mercury Unit

Carrying case for whirling hygrometer

Spare thermometer / Red spirit/ -5° to +50°C for P2528 ( Whirling Hygrometer)