DHT11 Temperature and Humidity Sensor Module

DHT11 Temperature and Humidity Sensor module features a temperature & humidity sensor complex with a calibrated digital signal output. By using the exclusive digital-signal acquisition technique and temperature & humidity sensing technology, it ensures high reliability and excellent long-term stability.

This DHT11 Temperature and Humidity sensor module includes a resistive-type humidity measurement component and an NTC temperature measurement component, and connects to a high performance 8-bit microcontroller, offering excellent quality, fast response, anti-interference ability and cost-effectiveness.

DHT11’s power supply is 3-5.5V DC. When power is supplied to the module, do not send any instruction to the sensor in within one second in order to pass the unstable status.

Specifications

• Power Supply: 3.3~5.5V DC
• Output: 4 pin single row
• Measurement Range: Humidity 20-90%RH, Temperature 0~50℃
• Accuracy： Humidity +-5%RH, Temperature +-2℃
• Resolution： Humidity 1%RH, Temperature 1℃
• Interchangeability: Fully Interchangeable
• Long-Term Stability: <±1%RH/year

Pin Description

• Pin 1:  Power +Ve (3.3VDC to 5.5VDC Max wrt. GND)
• Pin 2:  Serial Data Output
• Pin 3:  Power Ground or Power –Ve