Description
Reviews
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Model Number | AM2301A |
| Interface Type | 1-Wire Digital |
| Supply 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 |
| Cable Length | 25 cm |
| PCB Dimensions | 15mm x 15mm |
| Weight | 5 grams |
Anonymous
Mar 21, 2026
Rating: 4/5
Good sensor, short wire
Accuracy is solid but 25cm is limiting for some enclosures. Had to extend the wires myself.
Anonymous
Mar 05, 2026
Rating: 3/5
Remember the resistor
Didn't work until I added a 10k pull-up resistor to the data line. Works fine now though.
Anonymous
Feb 11, 2026
Rating: 5/5
Reliable data output
No drift observed over two weeks of continuous logging. Very stable for the price point.
Anonymous
Jan 31, 2026
Rating: 5/5
Works great with Arduino
Integrated easily with my Uno project. Readings are consistent and match my room thermometer.
Anonymous
Jan 21, 2026
Rating: 5/5
Genuine product
Verified the chip markings. Works perfectly with ESP8266 and Home Assistant.
Q: Is it waterproof?
A: No, the sensor head is not waterproof. Use an enclosure for outdoor use.
Q: Is it 5V tolerant?
A: Yes, the operating voltage range includes 5V DC.
Q: What sampling rate?
A: We recommend reading data every 2 seconds to ensure stability.
Q: Can I extend the cable?
A: Yes, up to 3 meters is generally stable for signal integrity.
Q: Library support?
A: Compatible with most DHT22 libraries available for Arduino and Python.
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