DHT21 AM2301 Digital Temperature Humidity Sensor module SHT11 SHT15 Arduino Description: 1. 4-pin package 2. Ultra-low power 3. No additional components 4. Excellent long-term stability 5. All calibration, digital output 6. Completely interchangeable 7. Long distance signal transmission 8. Relative humidity and temperature measurement Specifications: 1. Type: AM2301 2. Accuracy resolution: 0.1 3. Measurement range: 0-100%RH 4. Temperature measurement range: -40¡æ ~ +80¡æ 5. Humidity measurement precision: ¡À3%RH 6. Temperature measurement precision: ¡À0.5¡æ Package Included: 1 x PCS DHT21/AM2301 Digital Temperature And Humidity Sensor SHT11 SHT15 Arduino