Taylor 5525J1 Mason's Hygrometer, Wall Mount, 0 to 120 °F, 1% to 97% Humidity, ±2 °F Accuracy, Liquid in Glass 226696 ANSI Flange Class Class 150 ANSI Flange Class Class 150 The double end allows turning in either direction without having to remove the tool from the object Display Type Liquid in Glass Scale Type Liquid in Glass Primary Scale Temperature Secondary Scale Humidity Temperature Range 0 °F to 120 °F Humidity Range 1% to 97% Wet Bulb Temperature Range 20 °F to 120 °F Temperature Accuracy ±2 °F Humidity Accuracy ±1% RH Temperature Graduations 2 °F Temperature Scale Fahrenheit Dial Face Color White Dial Design Black and Red Markings with Red Liquid Fill on White Dial Fill Red Spirit Filled Sensor Material Spirit Fluid Sensor Length 7 in Case Material Polystyrene Mounting Location Wall Number of Mounting Holes 1 Mounting Hole Diameter 1 4 in Overall Length 10 in Overall Width 4 in Overall Depth 1 Scale Type Liquid in Glass