DHT 11 Digital Temperature and Humidity Sensor

DHT11 digital temperature and humidity sensor is a composite sensor contains a calibrated digital signal output of the temperature and humidity. Application of a dedicated digital modules collection technology and the temperature and humidity sensing technology, to ensure that the product has high reliability and excellent long-term stability. The sensor includes a resistive sense of wet components and an NTC temperature measurement devices, and connected with a high-performance 8-bit Microcontroller.

Low cost, long-term stability, relative humidity and temperature measurement, excellent quality, fast response, strong anti- interference ability, long distance signal transmission, digital signal output, and precise calibration. 

Specifications

Relative Humidity

• Resolution : 16Bit
• Repeatability : ±1% RH
• Accuracy : At 25°C ±5% RH
• Interchangeability : fully
• Interchangeable Response Time : 1 / e (63%) of 25°C 6s 1m / s air 6s
• Hysteresis : <± 0.3% RH
• Long-term stability : <± 0.5% RH / yr in

Temperature

• Resolution : 16Bit
• Repeatability : ±0.2°C
• Range : At 25°C ±2°C
• Response time : 1 / e (63%) 10S

Electrical Characteristics

• Power Supply : DC 3.5~5.5V
• Supply Current : Measurement 0.3mA Standby 60μ A Sampling 
• Period : more than 2 seconds