General Tools MH120 Mason's Hygrometer

Measures relative humidity.

• Measures relative humidity by comparing the wet and dry bulb thermometers
• Complete with two red spirit thermometers in a sturdy white plastic case & plastic reservoir bottle
• Dual scale readings

• Temperature range: 0º to 120ºF (-15º to 50ºC)
• Dimensions: 12.25” x 2.75” x 0.85”