Gravity: DHT22 Temperature & Humidity Sensor

DFRobotSKU: SEN0137
(3 Reviews)
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DHT22 capacitive humidity sensing digital temperature and humidity module is one that contains the compound has been calibrated digital signal output of the temperature and humidity sensors. Application of a dedicated digital modules collection technology and the temperature and humidity sensing technology, to ensure that the product has high reliability and excellent long-term stability.

The sensor includes a capacitive sensor wet components and a high-precision temperature measurement devices, and connected with a high-performance 8-bit microcontroller. The product has excellent quality, fast response, strong anti-jamming capability, and cost-effective.

Standard single-bus interface, system integration quick and easy. Small size, low power consumption, signal transmission distance up to 20 meters, making it the best choice of all kinds of applications and even the most demanding applications.

DHT22 has higher precision and can replace the expensive imported SHT10 temperature and humidity sensor.

It can measure the environment temperature and humidity to meet the high demand.

The product has high reliability and good stability. If it's used and combined with special sensor Arduino expansion board,it will be easily implemented the interactive effect which related to the temperature and humidity perception.

Note: DHT22 digital temperature and humidity sensor is designed for analog sensor interfaces.The analog port will be used as the digital which will not occupy the original digital port of the Arduino.The lines of the sensor which can transform the analog function to digital that can be use on digital port.

DHT22 temperature sensor tutorial:

  • ESP32 Arduino: Getting temperature from a DHT22 sensor
  • ESP32 Arduino: DHT22 Minimum Sampling Period
  • ESP32 Arduino: Getting humidity measurements from a DHT22 sensor
  • ESP8266 Arduino Tutorial: Getting temperature and humidity with a DHT22 sensor
  • Project 1: Environmental Monitoring System Based on OBLOQ-IoT Module
    This product is mainly applied in electronic laboratory to monitor and control indicators such as temperature, humidity, light and dust, and timely upload them to the cloud data space to achieve remote monitoring and control of dehumidifier, air purifier, exhaust fan and dimmable light, etc. in the laboratory.

    Hardware List:

    DFRduino UNO R3 - Arduino Compatible
    Gravity: UART OBLOQ – IOT Module (Microsoft Azure)
    DHT22 Temperature and Humidity Sensor
    Sharp GP2Y1010AU0F Compact optical Dust Sensor
    Gravity: i2C BMP280 Barometer Sensor
    Gravity: Analog Ambient Light Sensor For Arduino
    LCD12864 Shield for Arduino
    Quadruple relay module

    Type Selection of Temperature Sensors
    Infrared Thermometer Module Gravity:SHT1x Humidity and Temperature Sensor

    Gravity: DHT11 Temperature Humidity Sensor For Arduino

    DHT22 Temperature and Humidity Sensor
    SKU SEN0206 SEN0093 DFR0066 DFR0067 SEN0137
    Operating Voltage 3.3V~5V 3V~5V 3.3V~5V 3.3V~5V +5V
    Operating Current 1.2mA 4mA~9mA 2μA 0.5mA~2.5mA 1.5mA
    Operating Temperature -40℃~125 ℃ -10℃~50℃ -40℃~128.8℃ 0℃~50℃ -20℃-80℃
    Range of temperature measurement -70.01℃~382.19℃ -33℃~220℃ -40℃~128.8℃ 0℃~50℃ -40℃-80℃
    Precision of temperature measurement 0.5℃ 2℃(full range) 0.5℃ 2℃
    Temperature deviation ±0.5℃ ±0.6℃ ±0.4°C ±0.1℃ ±0.5℃
    Dimension 31.5*18(mm) 12*13.7*35(mm) 32*27(mm) 22*32(mm) 22*32(mm)
    Interface Gravity-I2C Digitalx3 Gravity-2-wire digital Gravity-digital Gravity-digital
    Data type Digit Digit Digit (unibus) Digit (unibus) Digit (unibus)
    Range of humidity measurement NA NA 0-100%RH 20-90%RH 0-100%RH
    Humidity deviation NA NA ±4.5%RH ±5%RH ±2%RH
    Price $16.00 $49.00 $21.05 $5.20 $9.50
    Brief introduction

    non-contact measurement uses infra-red radiation to measure the temperature and does not require a direct touch. Additionally, this method of measurement can be read quickly and accurately. This module has a FOV of 35° Wave length 5.5um-14um

    Application: Environmental monitor

    Home automation Automobile electronics

    Airline industry

    Military

    It is a long distance thermometer specially designed for a high sensitivity, high accuracy, low noise and low power consumption. Wave length:5um-14um This module has a FOV of 26.6°x 2 = 53.2°

    Application:

    Medical equipment Fire alarm systems telecommunications

    It consists of 1 capacitive humidity module and 1 energy gap temperature module, perfect integration of 1 14bit A/D converter and 1 2-wire digital interface.

    CMOSens technology makes it of advantages such as low power consumption, fast response, strong anti-jamming capacity etc.

    Application:

    Medical equipment

    HVAC

    Meteorology

    Humidity regulator Dehumidifier

    Tests and measurements

    Automobile

    Automatically control

    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. Its signal transmission distance up to 20 meters. These features make it a variety of applications and even the most demanding applications.

    Application:
    Medical equipment HVAC
    Meteorology
    Humidity regulator
    Dehumidifier Tests and measurements
    Automobile
    Automatically control

    It contains a resistive element and a sense of wet NTC temperature module. Compared to DHT11, it has smaller humidity deviation, faster response, stronger anti-interference ability and higher cost performance

    Application:

    Medical equipment HVAC

    Meteorology Humidity regulator Dehumidifier

    Tests and measurements
    Automobile Automatically control

    Specification

    • Supply Voltage: 5V
    • Temperature Range:-40-80℃ / resolution0.1℃ / error
    • Humidity Range: 0-100%RH / resolution0.1%RH / error±2%RH
    • Wiring map: VCC,GND,S
    • Size: 38 x 20mm(1.50x0.79")

    Shipping List

    • DHT22 sensor x1
    • Analog sensor cable x1

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