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What is Kata thermometer measures and explain in detail?
Kata thermometer measures ‘cooling power of air’: Cooling power of air comprises of

– Air temperature
– Humidity
– Air movement

Kata thermometer readings as indices of thermal comfort:

– Dry kata reading > 6 (Thermal comfort)
– Wet kata reading > 20 (Thermal comfort)

Nowadays it is used to record low air velocity.