A wall-mounted Mason's wet-and-dry thermometer, red-alcohol filled for easy readability, comprising two thermometer tubes with double-scale calibration and a humidity and temperature conversion chart. The humidity reading is obtained by comparing the readings of the two thermometers against the chart; one thermometer has its bulb wrapped with a wick dipped into a water cistern to keep it wet. The two tubes are calibrated −15 to 120°F x 2°F and −10 to 50°C x 1°C.

We are manufacturers and suppliers of the Mason's Wet and Dry Thermometer, serving Algeria, Argentina, Australia, Bahrain, Bangladesh, Belgium, Bhutan, Brazil, Cambodia, Cuba, Cyprus, Denmark, Ecuador, Egypt, Ethiopia, Finland, France, Georgia, Germany, Ghana, Hungary, Iceland, Italy, Japan, Jordan, Kenya, Kuwait, Malaysia, the Philippines, Tanzania and Uganda.