Relative Humidity Temperature Absolute Humidity Dew Point Saturation Humidity Saturation Deficit Indication of Night Frost Comfort Indicator The combination of readings from this hygrometer with Durotherm element and bimetallic Thermometer indicates dew point, saturation humidity, indication of night frost, etc., and comes with brass case and 4" silver dial.
Humidity Range: 20 to 100% RH, ±4% accuracy
Temperature Range: 20 to 100°F, 1.5% of full scale accuracy
Graduations: 2% RH and 2°F