This is a multifunctional sensor that gives you temperature and relative humidity information at the same time. It utilizes a TH02 sensor that can meet measurement needs of general purposes. It provides reliable readings when environment humidity condition inbetween 0-80% RH, and temperature condition inbetween 0-70°C, covering needs in most home and daily applications that don't contain extreme conditions.SpecificationWide operating voltage range:(3.3V ~ 5V)Low Power Consumption:350 µA during RH conversion0 to 100% RH operating rangeMeasuring Range:Humidity: 0% - 80% RH Temperature: 0 ~ 70 °CAccuracy:Humidity: ±4.5% RHTemperature: ±0.5°CŸI2C host interfaceExcellent long term stability