AM2301 Temperature and Humidity Sensor, 4-Pin Digital Output
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Prices updated: 12 Oct 2026
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About this product
The AM2301 is a digital temperature and humidity sensor in a 4-pin package, factory calibrated and designed to work without additional components. It measures relative humidity from 0 to 100% RH and temperature from -40 to 80 °C, suiting weather stations, climate monitoring and indoor environment projects.
Specifications
- Humidity range
- 0 to 100% RH
- Temperature range
- -40 to 80 °C
- Humidity accuracy
- ±2% RH (max ±5% RH)
- Temperature accuracy
- ±0.5 °C
- Resolution
- 0.1% RH / 0.1 °C
- Response time
- 6 s
- Size
- 14 x 18 x 5.5 mm
Frequently asked questions
How do I wire the AM2301?
The listing describes a digital output in a 4-pin package but does not specify the interface. Check the datasheet for the exact pinout and any pull-up resistor requirement before wiring it to your microcontroller.
How often can I read the sensor?
The response time is about 6 seconds, so polling it much faster than that will not give new measurements. Space your readings out to get stable values.
