Measures relative humidity from 0 to 100% and temperature from -4 to 140° F (-20 to 60° C) * Accuracy ±2% from 20% to 90%; ±1.8°F (±1°C) * Dual display of humidity and temperature or humidity and dew point or humidity and wet bulb * Capacitance sensor responds under to humidity changes in under 30 seconds * Slim design with rubberized ides for better grip