DHT11
It is a temperature and humidity compound sensor with calibrated digital signal output. It uses special digital module acquisition technology and temperature and humidity sensing technology to ensure that the product has extremely high reliability and excellent long-term stability. The sensor includes a resistive humidity sensing element and an NTC temperature measuring element, and is connected with a high-performance 8-bit microcontroller. Therefore, this product has the advantages of excellent quality, ultra-fast response, strong anti-interference ability, and extremely high cost performance. Each DHT11 sensor is calibrated in an extremely accurate humidity calibration room. The calibration coefficients are stored in the OTP memory in the form of a program, and these calibration coefficients are called during the processing of the detection signal inside the sensor. The single-wire serial interface makes system integration easy and fast. The ultra-small size, extremely low power consumption, and the signal transmission distance can reach more than 20 meters, making it the best choice for various applications and even the most demanding applications. The product is a 4-pin single row pin package. Convenient connection, special packaging form can be provided according to user needs.
Module
Supply voltage: 3.3 ~ 5.5V DC
output: Single bus digital signal
Measuring range: Humidity 20-90% RH, temperature 0 ~ 50 ℃
Measurement accuracy: Humidity ± 5% RH, Temperature ± 2 ℃
Resolution: Humidity 1% RH ,
Long-term stability at 1 ℃ : <± 1% RH / year
Matters needing attention
1. Avoid using in the case of condensation
2. Long-term storage temperature of 10-40 ℃, humidity below 60%
3. When using, the power and ground connection must be correct to avoid damage to the sensor
