A
Anonymous
Apr 13, 2026
Rating: 5/5
Great value
Cheap and effective. Using it for a home automation dashboard. Data is consistent.
Description
DHT22 Single-Bus Digital Temperature and Humidity Sensor AM2302 Module Electronic Building Blocks
Reviews
Attributes
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Interface | Single-Wire Digital |
| Operating Voltage | 3.3V - 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 |
| Resolution | 16-bit |
| Sampling Period | 2 seconds |
| Dimensions | 15.1mm x 25mm x 7.7mm |
| Pin Configuration | 4-Pin Header |
5 reviews
A
Anonymous
Apr 11, 2026
Rating: 5/5
Perfect for Arduino projects
Works flawlessly with my Arduino Uno. Easy to wire and the library support is excellent.
A
Anonymous
Mar 23, 2026
Rating: 5/5
Reliable sensor
Been using this in my greenhouse monitor for months. No drift observed so far.
A
Anonymous
Feb 12, 2026
Rating: 4/5
Good accuracy
Compared it to a professional hygrometer and it was within expected range. Just remember the pull-up resistor.
A
Anonymous
Feb 10, 2026
Rating: 3/5
Tricky wiring
The sensor works but I burned one out by reversing the power. Make sure to check the pinout carefully.
5 FAQ
Q: Can I use this outdoors?
A: The sensor itself is not waterproof. You should house it in a protective enclosure for outdoor use.
Q: Does it come with a breakout board?
A: This listing is for the module with the breakout board included, making it breadboard friendly.
Q: What is the maximum cable length?
A: For reliable data, keep the cable under 20 meters. Shielded cable is recommended for longer distances.
Q: Do I need a resistor?
A: Yes, a 10k pull-up resistor between data and VCC is recommended for stable communication.
Q: Is this compatible with Raspberry Pi?
A: Yes, it works with Raspberry Pi GPIO pins using Python libraries.
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