Description
Reviews
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Sensor Model | DHT11 / DHT22 / AM2302 |
| Operating Voltage | 3.3V to 5V DC |
| Temperature Range | -40°C to 80°C (DHT22) |
| Humidity Range | 0% to 100% RH |
| Output Signal | Digital Single-wire |
| Temperature Accuracy | ±0.5°C (DHT22) |
| Humidity Accuracy | ±2% RH (DHT22) |
| PCB Dimensions | 15mm x 15mm |
| Compatible Platforms | Arduino, Raspberry Pi, ESP32 |
| Mounting Type | Through Hole Module |
Anonymous
Apr 09, 2026
Rating: 5/5
Accurate and reliable
Compared the readings with a professional hygrometer and the variance was minimal. Great for home automation projects involving humidity control.
Anonymous
Apr 02, 2026
Rating: 5/5
Works great for weather station
I used this module for my backyard weather station project. The DHT22 version provides accurate readings compared to my standalone thermometer. Easy to wire with Arduino.
Anonymous
Feb 28, 2026
Rating: 5/5
Easy to use with libraries
Integrated this with an ESP8266 quickly. The Adafruit library supports it out of the box. No calibration needed for my greenhouse monitor.
Anonymous
Feb 16, 2026
Rating: 4/5
Good value for money
Solid sensor for the price. The sampling rate is a bit slow, you have to wait 2 seconds between reads, but that is expected for this model. Overall satisfied.
Anonymous
Jan 27, 2026
Rating: 3/5
Okay for hobby use
It works as described but don't expect industrial grade precision. Good for learning electronics and basic IoT prototypes. Pins were a bit thin to solder.
Q: How often can I read data from the sensor?
A: The DHT22 has a sampling rate of 0.5Hz, meaning you can read new data once every 2 seconds. Reading faster may return the previous value.
Q: Can I power this with 3.3V logic?
A: Yes, the module operates within a 3.3V to 5V DC range, making it compatible with both 3.3V and 5V microcontrollers.
Q: What is the maximum cable length for the probe?
A: For reliable digital signal transmission, we recommend keeping the cable length under 20 meters. Longer distances may require signal amplification.
Q: Which library do you recommend for Arduino?
A: We recommend using the Adafruit DHT sensor library. It is well-maintained and supports both DHT11 and DHT22 models seamlessly.
Q: Is this sensor waterproof for outdoor use?
A: The sensor module itself is not waterproof. If used outdoors, please place it inside a waterproof enclosure with ventilation to protect the electronics from rain.
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