Description

DHT11 SENSOR

The DHT11 is a basic, ultra low-cost digital temperature and humidity sensor. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air, and spits out a digital signal on the data pin (no analog input pins needed). Its fairly simple to use, but requires careful timing to grab data. The only real downside of this sensor is you can only get new data from it once every 2 seconds, so when using our library, sensor readings can be up to 2 seconds old.

This module makes is easy to connect the DHT11 sensor to an Arduino or microcontroller as includes the pull up resistor required to use the sensor. Only three connections are required to be made to use the sensor – Vcc, Gnd and Output.

It has high reliability and excellent long-term stability, thanks to the exclusive digital signal acquisition technique and temperature & humidity sensing technology.

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