DHT22

DHT22
Temperature and Humidity Sensor, RoHS

This DHT22 Temperature and Humidity Sensor features a calibrated digital signal output with the temperature and humidity sensor complex. Its technology ensures the high reliability and excellent long-term stability. A high-performance 8-bit microcontroller is connected. This sensor includes a resistive element and a sense of wet NTC temperature measuring devices. It has excellent quality, fast response, anti-interference ability and high cost performance advantages.

Each DHT22 sensors features extremely accurate calibration of humidity calibration chamber. The calibration coefficients stored in the OTP program memory, internal sensors detect signals in the process, we should call these calibration coefficients. The single-wire serial interface system is integrated to become quick and easy. Small size, low power, signal transmission distance up to 20 meters, making it a variety of applications and even the most demanding applications. The product is 4-pin single row pin package. Convenient connection, special packages can be provided according to users need.

Features:

• Supply Voltage: 3.3-6V DC
• Temperature range :-40°C ~ 125°C error of ± 0.2 °C
• Humidity :0-100% RH ± 0.3% RH error
• Interface: Digital

DHT11/22 and Arduino Uno

Download:

• Datasheet
• Artykuł w portalu Mikrokontroler.pl pt. "Czujniki wilgotności i temperatury DHT11 i DHT22"