Sling Psychrometer, Celsius

Measuring Range: -5°C to 50°C; 10% to 100% RH. Accuracy: ±0.5°C; 5% RH. Graduations: 0.5°C; 2% RH. 8.25” Long. Meets the GLOBE program protocols for relative humidity. Safe and easy to use, this sling psychrometer allows for easy conversion of wet and dry bulb readings to relative humidity - eliminating the need for conversion tables! Features a durable plastic case, slide rule and a red spirit thermometer. 8.25” Long.