• DHT22 Temperature and Humidity Digital Sensor - circuitrocks
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Measure Temperature with a Sensor Made for Embedded Builds

The DHT22 Temperature and Humidity Digital Sensor is a temperature and humidity sensor with digital output designed for climate logging, weather nodes, and room monitoring. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.

Key details include Humidity range: 0-100%RH; Interface: Digital GPIO; Accuracy resolution: 0.1.

Important: Sensor response time depends on airflow, mounting, and thermal contact. Keep heat sources and self-heating from nearby parts in mind.

Why you’ll love it

  • Ultra-low power: ultra-low power
  • All calibration, digital output: All calibration, digital output
  • Key feature: Relative humidity and temperature measurement
  • Sensing range: 0-100%RH
  • Readable detail: 0.1
  • Useful spec: DHT22/AM2302

Compare with similar products

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What you can build

This sensor is a good fit for weather stations, room monitors, greenhouses, incubators, and climate data loggers.

Starter bundles

Pair it with an Arduino-compatible board, ESP32, or Raspberry Pi, plus a breadboard and jumper wires for quick setup and testing.

Recommended add-ons

Useful add-ons include probe mounts, thermal paste if needed, and a data logger, depending on how you plan to power, mount, and log the sensor.

Technical specifications

Product DHT22 Temperature and Humidity Digital Sensor
Humidity range 0-100%RH
Temperature range -40~80
Accuracy resolution 0.1
Type DHT22/AM2302
Humidity measurement precision ±2%RH
Temperature measurement precision ±0.5
Interface Digital GPIO

Wiring & usage notes

Connect power and ground, then wire the output pin to a digital GPIO input. Check whether the module uses active-high or active-low logic in your code. Sensor response time depends on airflow, mounting, and thermal contact. Keep heat sources and self-heating from nearby parts in mind.

What’s in the box

1 × DHT22 Temperature and Humidity Digital Sensor

Frequently Asked Questions

What does the DHT22 Temperature and Humidity Digital Sensor measure? It is designed to measure temperature and humidity.
Can I use it with Arduino, ESP32, or Raspberry Pi? Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.
How do I connect this Digital GPIO sensor? This sensor provides a digital switching-style signal that is easy to read from a GPIO pin.
What affects accuracy? Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.
Is it good for prototyping? Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.

DHT22 Temperature + Humidity Digital Sensor

DHT22 Temperature + Humidity Digital Sensor

32 in stock

Product Code

AB105

₱ 109.00
₱ 109.00
Sale Sold out
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