Our Humidity Sensors (RHK1AN) is desinged to measure relative humidity in the ambient air.Applications: Humidifiers, Dehumidifiers, Incubator, Air Cleaner, Refrigerator, air conditioning, Greenhouse, etc.Brief Spec.: 1. Humidity Range ; 10% ~ 90% RH 2. Accracy : within 5% 3. Temperature range: -5 ~ +65 Celsius 4. Response Time: 60 seconds 5. Rated Voltage: AC 1V