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Home / Sensors / DHT11 DHT22 Temperature and Humidity Sensor SHT30/31 Digital Switch AM2302 Electronic Building Blocks Module

Attributes

Brand -
Category Robotics / STEM Teaching Tools / Sensors
Origin -
Model Compatibility DHT11, DHT22 (AM2302), SHT30, SHT31
Interface Type Digital Single-Bus
Operating Voltage 3.3V - 5V DC
Temperature Range (DHT22) -40°C to +80°C
Humidity Range (DHT22) 0% to 100% RH
Accuracy (Humidity) ±2% RH (Max)
Sampling Period 2 Seconds
Pin Configuration 4-Pin Header (VCC, Data, NC, GND)
Application Scope Arduino, Raspberry Pi, IoT Projects
Package Contents 1x Sensor Module, 1x Pin Header Strip

6 reviews

A

Anonymous

Mar 21, 2026

Rating: 4/5

Solid performance

The build quality is decent for the price. I am using the SHT30 variant for a more precise project, and it communicates well over I2C. Shipping was fast.

A

Anonymous

Mar 11, 2026

Rating: 5/5

Perfect for Arduino Projects

These sensors work flawlessly with my Arduino Uno. The DHT22 version provides much better accuracy than the DHT11. Setup was easy using standard libraries.

A

Anonymous

Mar 10, 2026

Rating: 5/5

Bulk buy success

Purchased a lot for our community maker space. All units tested working out of the box. Great for teaching students about environmental sensing.

A

Anonymous

Mar 10, 2026

Rating: 4/5

Good value for monitoring plants

I bought five of these for my automated greenhouse system. They are reliable, though you need to wait a few seconds between readings as specified in the datasheet.

A

Anonymous

Mar 06, 2026

Rating: 5/5

Great starter sensor

As someone new to electronics, this module was very forgiving. The pins are clearly marked, and there are plenty of tutorials online to get started quickly.

A

Anonymous

Mar 03, 2026

Rating: 3/5

Works but requires pull-up resistor

The sensor works fine, but beginners should note that you often need an external pull-up resistor on the data line if your board doesn't have one built-in.

5 FAQ

Q: Can these sensors be used outdoors?

A: While the electronic components can function outdoors, the sensor itself is not waterproof. You must house it in a ventilated, weatherproof enclosure for outdoor use.

Q: Is this compatible with Raspberry Pi GPIO pins?

A: Yes, these sensors are fully compatible with Raspberry Pi. However, ensure you use the correct voltage level (3.3V) and include a pull-up resistor on the data pin.

Q: Which library do you recommend for ESP32?

A: For ESP32, we recommend using the 'DHT sensor library' by Adafruit available in the Arduino IDE Library Manager, which supports both ESP32 and ESP8266 boards.

Q: What is the main difference between the DHT11 and DHT22 included here?

A: The DHT22 (AM2302) offers a wider temperature range (-40 to 80°C) and higher accuracy compared to the DHT11 (0 to 50°C). The DHT22 also has a slower sampling rate.

Q: Do I need to solder the pins myself?

A: The module typically comes with a separate pin header strip. You will need to solder them onto the board yourself unless you purchase a pre-soldered version.

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