DHT21/AM2301 Capacitive Digital Temperature and Humidity Sensor (instead of SHT10 SHT11) AM2301A

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DHT21/AM2301 Capacitive Digital Temperature and Humidity Sensor (instead of SHT10 SHT11) AM2301A


Digital temperature and humidity sensor
Note: DHT21 has been renamed AM2301

1. Relative humidity and temperature measurement
2. Full calibration, digital output
3. Excellent long-term stability
4. No extra 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 uses dedicated 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 capacitive humidity sensing element and an NTC temperature measuring element, and is connected with a high-performance 8-bit microcontroller. Therefore, the 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 programs, and these calibration coefficients are called in the sensor's internal detection signal processing. The single-wire serial interface makes system integration easy and quick. Ultra-small size, extremely low power consumption, and signal transmission distance of up to 20 meters or more, 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.

Application areas:
HVAC
Testing and inspection equipment
Car
Data logger
Consumer goods
Automatic control
Weather station
Home appliances
Humidity regulator
Medical treatment


DHT21/AM2301 Capacitive Digital Temperature and Humidity Sensor (instead of SHT10 SHT11) AM2301A


















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