Technical parameters:
Supply voltage: 3.3 to 5.5 VDC
Output: digital signal
Measuring range: humidity 20% to 95% RH, temperature 0 to 50 celsius degrees.
Accuracy: humidity + & – 5% RH, temperature + & – 2 °C
Resolution: humidity 1% RH, temperature 1 Celsius degree.
Long-term stability: less + & – 1% RH per year.
Description of module interface (3-wire system)
۱ VCC external 3.3 V-5 V.
۲ GND external GND
۳ digital output interface for DO-SALL board switch, connected to a single chip E/A port

Package Included:
۱ x DHT11 Temperature Humidity Sensor

Notes:
۱٫ To avoid condensation conditions.
۲٫ Long-term storage temperature 10 to 40 degrees Celsius, humidity below 60 %.
۳٫ The use of power and ground connection is correct to avoid damaging the sensor.