DHT21/AM2301 AM2301A Capacitive Digital Temperature and Humidity Sensor Replace SHT10 SHT11Item NO.: DHT21 AM2301

DHT21/AM2301/AM2301A

Capacitive Digital Temperature And Humidity Sensor

DHT21 Has Been Renamed AM2301:

1. Relative humidity and temperature measurement

2. All calibration, digital output

3. Excellent long-term stability

4. No additional parts required

5. Ultra long signal transmission distance

6. Ultra low energy consumption

7. 4 pin installation

8. Fully interchangeable

AM2301/DHT21 Product Overview:

AM2301/DHT21 digital temperature and humidity sensor is a temperature and humidity composite sensor with calibrated digital signal output. It applies special digital module acquisition technology and temperature and humidity sensing technology to ensure high reliability and excellent long-term stability of the product. The sensor consists of a capacitive humidity sensor and a NTC temperature sensor, which are connected to a high-performance 8-bit microcontroller. Therefore, this product has the advantages of excellent quality, ultra fast response, strong anti-interference ability, and high cost performance. Each AM2301/DHT21 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. These calibration coefficients are called during the processing of the detection signal inside the sensor. Single wire serial interface makes system integration easy and fast. Its ultra small size, extremely low power consumption and signal transmission distance of more than 20 meters make it the best choice for various applications and even the most demanding applications. The product is 4-pin single row pin package. The connection is convenient, and the special packaging form can be provided according to the user's needs.

Application Field:

● HVAC

● Testing and detection equipment

● Automobile

● Data recorder

● Consumer goods

● Automatic control

● Meteorological station

● Household appliances

● Humidity regulator

● Medical

● Dehumidifier