The SHT31 sensor could be the finest and highest-accuracy humidity sensor you can find, as it can acquire the relative humidity at only ±2% error. On the other side it also features an excellent performance in terms of temperature measurement, you can use it in some extreme conditions, like -40 degree or 125 degree, and it still keeps an accuracy of ±0.3 degree. If you are looking for a temperature & humidity sensor that is accurate and also easy to use for your Arduino projects, the Grove - Temperature&Humidity Sensor (SHT31) must be one of your choices!
Grove modules don’t need any bread-boarding, meshing or soldering to make them work.
Specifications
High accuracy, ±0.3 °C accuracy for temperature and ±2% for humidity
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.
This temperature & humidity sensor provides a pre-calibrated digital output. A unique capacitive sensor element measures relative humidity and the temperature is measured by a negative temperature coefficient (NTC) thermistor.