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Home / Computer Hardware, Monitors & Peripherals / DHT22 Single-Bus Digital Temperature and Humidity Sensor, 2302 Module, Electronic Building Block

Attributes

Brand -
Category Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin -
Model Number DHT22 (AM2302)
Operating Voltage 3.3V to 5.5V DC
Temperature Range -40°C to 80°C
Humidity Range 0% to 100% RH
Temperature Accuracy ±0.5°C
Humidity Accuracy ±2% RH
Interface Type Single-Bus Digital
Pin Configuration 4-Pin Header
Sampling Period 2 Seconds
Package Weight 5 Grams

5 reviews

A

Anonymous

Apr 08, 2026

Rating: 5/5

Works with Raspberry Pi

Successfully integrated with my Pi Zero. Remember to use a pull-up resistor for stable data.

A

Anonymous

Mar 31, 2026

Rating: 4/5

Good accuracy for the price

Compared it against a professional meter and it was within expected tolerance. Pins are a bit thin though.

A

Anonymous

Mar 24, 2026

Rating: 3/5

Requires extra components

Sensor works well but does not include the necessary pull-up resistor. Had to order separately.

A

Anonymous

Mar 12, 2026

Rating: 5/5

Easy to use

Great for my university project. Clear pinout and plenty of tutorials available online.

A

Anonymous

Feb 12, 2026

Rating: 5/5

Perfect for hobby projects

Works flawlessly with the Arduino IDE and standard libraries. Readings are stable and consistent.

5 FAQ

Q: Is this sensor compatible with 3.3V logic levels?

A: Yes, the DHT22 operates between 3.3V and 5.5V, making it compatible with most microcontrollers.

Q: Which library is recommended for Arduino?

A: The Adafruit DHT sensor library is widely used and well-maintained for this module.

Q: Is this sensor waterproof?

A: No, the electronic components are not waterproof. Please protect them from direct moisture.

Q: What is the maximum sampling rate?

A: The sensor requires a 2-second interval between readings to ensure accurate data collection.

Q: Do I need a pull-up resistor for this module?

A: Yes, we recommend a 10k ohm pull-up resistor between the data pin and VCC for reliable communication.

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