Description: 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.
Technical Parameters:
● Relative humidity:
• Resolution: 16Bit
• Repeatability: ±1% RH
• Accuracy: At 25℃ ±5% RH
• Interchangeability: fully interchangeable
• Response time: 1 / e (63%) of 25℃ 6s
• Hysteresis: <± 0.3% RH
• Long-term stability: <± 0.5% RH / yr in
● Temperature:
• Resolution: 16Bit
• Repeatability: ±0.2℃
• Range: At 25℃ ±2℃
• Response time: 1 / e (63%) 10S
● Electrical Characteristics:
• Power supply: 3.5 ～ 5.5V DC
• Supply Current: measurement 0.3mA standby 60μA
• Sampling period: more than 2 seconds
● Pin Description:
1 the VDD power supply 3.5 ～ 5.5V DC
2 DATA serial data, a single bus
3 NC, empty pin
4 GND ground, the negative power
● Dimensions (unit: mm) 
Features:
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.
Applications:
HVAC, dehumidifier, testing and inspection equipment, consumer goods, automotive, automatic control, data loggers, weather stations, home appliances, humidity regulator, medical and other humidity measurement and control.