This is upgrade version of DHT11 humidity temperature sensor, fully downward compatible, more precise and add I2C interface.

Feature:

• Temperature: -20 ~ +60 C
  Resolution: 0.1C
  Repeat: -+0.2C
  Precision: 25C @ -+0.5C
• Humidity: 20-95 RH
  Resolution: 0.1%RH
  Repeat: -+ 1%RH
  Precision 25C @ -+5RH
• Power: DC 2.7-5.5V
  Normal current 1mA
  Standby current 60uA
• Interface: Standard I2C and or 1-wire interface
  I2C address 0xB8(DEV SEL); communication speed can not more than 400Khz
• Pin interface: 1. VDD 2. SDA 3. GND 4. SCL (connect to GND when use as 1-wire)
• Tiny size: 12.3 x 4.7 x 7.5mm