United Scientific® Wet & Dry Bulb Wall Thermometer – Relative Humidity Measurement, Dual Celsius & Fahrenheit Scales

Accurately measure and calculate relative humidity with the United Scientific® Wet & Dry Bulb Wall Thermometer. This classic psychrometer design features two precision glass thermometers mounted on a durable backing for easy wall installation. One thermometer functions as a dry bulb, while the other is wrapped with a wicking cloth connected to a water reservoir, allowing it to act as a wet bulb. The difference in readings provides a reliable method for determining humidity levels.

Graduated in both Celsius (-10° to +50° at 1°C increments) and Fahrenheit (14° to 122° at 2°F increments), this wall thermometer is ideal for classroom demonstrations, laboratories, meteorology studies, and environmental science experiments. A convenient humidity calculation table is included for quick reference.

Compact in size at 11.5" x 3" x 1.75", this dual-scale wet and dry bulb thermometer delivers accuracy and simplicity, making it an essential tool for teaching, research, and weather observation.