This I2C digital humidity sensor is an accurate and intelligent alternative to the much
simpler Humidity and Temperature Sensor - SHT15 Breakout (http://adafru.it/1638) It has a
typical accuracy of ±2% with an operating range that's optimized from 5% to 95% RH.
Operation outside this range is still possible - just the accuracy might drop a bit. The
temperature output has an accuracy of ±1°C from -30~90°C. If you're looking to measure
temperature more accurately, we recommend the MCP9808 High Accuracy I2C
Temperature Sensor Breakout Board. (http://adafru.it/1782)