Hygrometer, DURAC, Mason, -10/50C(0/120F Formerly
HB Instruments Hygrometer, Mason's Form, -10 to 50°C Range, 1°C Accuracy, 310 L x 75mm H, Organic Thermometer Fill, White Back Glass, Displays Relative Humidity and Dew Point using Wet and Dry Bulb Thermometers, Complete with Laminated Humidity Chart and Hole for Wall Mounting - BEL
