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ASAIR AM2302 Digital Temperature & Humidity Sensor (Original DHT22 Sensor)
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The ASAIR AM2302 Digital Temperature & Humidity Sensor, also known as the wired version of the DHT22, is a high-precision digital sensor designed for accurate environmental monitoring in electronics, IoT, automation, and embedded system projects. It combines a capacitive humidity sensing element and a high-accuracy thermistor to measure relative humidity and ambient temperature with excellent reliability.
Unlike analog sensors, the AM2302 outputs a calibrated digital signal, eliminating the need for analog-to-digital conversion and making integration simple with popular development platforms such as Arduino Boards, Raspberry Pi Boards, ESP32 Development Boards, ESP8266 Development Boards, STM32 Development Boards, and other microcontrollers.
Offering a humidity measurement range of 0–100% RH with ±2–5% RH accuracy and a temperature range of -40°C to 80°C with ±0.5°C accuracy, the AM2302 is ideal for weather stations, smart home automation, agriculture, industrial monitoring, and educational projects. You can also explore our complete range of Temperature & Humidity Sensors for similar environmental sensing solutions.
The sensor includes an internal pull-up resistor, operates from 3V–5V, and communicates over a single digital data line, providing reliable performance while requiring minimal external components.
Measures temperature from -40°C to 80°C with ±0.5°C accuracy and relative humidity from 0–100% RH with ±2–5% RH accuracy, making it suitable for precision monitoring applications.
Outputs calibrated digital data directly, eliminating analog signal noise and simplifying interfacing with microcontrollers.
Includes an internal 5.1kΩ pull-up resistor, reducing external components and simplifying circuit design.
Operates from 3V to 5V DC, making it compatible with most popular embedded development boards.
Supports Arduino, Raspberry Pi, ESP32, ESP8266, STM32, and many other embedded platforms using a single-wire digital communication interface
Factory calibrated for reliable and repeatable environmental measurements over extended operating periods.
Consumes minimal power, making it suitable for battery-powered IoT devices and wireless sensor nodes built using ESP32 Development Boards.
Learn temperature and humidity sensing in Arduino, Raspberry Pi, and embedded system projects.
Build environmental monitoring systems, smart homes, and connected sensor networks.
Perfect for DIY weather stations, greenhouse automation, and home automation projects using compatible Sensors and development boards.
Develop industrial monitoring, HVAC control, and environmental data logging systems.
Ideal for STEM education, electronics laboratories, and sensor programming demonstrations.
Suitable for data acquisition, laboratory monitoring, and environmental sensing applications.
The Original ASAIR AM2302 Digital Temperature & Humidity Sensor is available at Robocraze starting from ₹449, making it an affordable and reliable solution for environmental monitoring, IoT development, automation, and educational electronics projects. Prices may vary based on seasonal offers, promotional discounts, and stock availability.
As a trusted supplier of electronics components and development modules in India, Robocraze provides genuine ASAIR sensors sourced through verified suppliers. Every sensor is quality-tested before dispatch and backed by secure packaging, GST invoicing, technical support, and dependable customer service, ensuring a reliable purchasing experience for students, makers, developers, and businesses.
|
Model |
AM2302 |
|
Supply Voltage (V) |
3.3 to 5 |
|
Current |
5mA |
|
Humidity |
0-100% |
|
Humidity Accuracy |
2-5% |
|
Temperature |
-40 to 80 DegC |
|
Temperature Accuracy |
0.5 DegC |
|
Sampling Rate |
0.5 Hz (Once every 2 seconds) |
|
Wire Length |
3 wires 23cm long (9") |
|
Dimensions |
27x59x13mm |
|
Weight |
20g |
Model
AM2302
Supply Voltage (V)
3.3 to 5
Current
5mA
Humidity
0-100%
Humidity Accuracy
2-5%
Temperature
-40 to 80 DegC
Temperature Accuracy
0.5 DegC
Sampling Rate
0.5 Hz (Once every 2 seconds)
Wire Length
3 wires 23cm long (9")
Dimensions
27x59x13mm
Weight
20g
The AM2302 is a high-accuracy digital temperature and humidity sensor manufactured by ASAIR. It combines a capacitive humidity sensor and a thermistor to provide calibrated digital measurements for environmental monitoring and embedded system applications.
The AM2302 (DHT22) offers higher accuracy, a wider temperature and humidity measurement range, and better long-term stability than the DHT11, making it suitable for more demanding applications.
Yes. The sensor is fully compatible with Arduino, Raspberry Pi, ESP32, ESP8266, STM32, and other popular microcontrollers that support single-wire digital communication.
The AM2302 operates on 3V to 5V DC, allowing it to work with most development boards and embedded platforms.
The AM2302 updates its measurements once every 2 seconds (0.5 Hz sampling rate), making it suitable for environmental monitoring applications where rapid sampling is not required.
No. The original ASAIR AM2302 includes an internal 5.1kΩ pull-up resistor, simplifying wiring and reducing the number of external components needed.
The sensor is widely used in weather stations, greenhouse automation, smart homes, HVAC systems, IoT monitoring devices, environmental data loggers, and industrial monitoring solutions.
Yes. Robocraze supplies genuine ASAIR AM2302 sensors sourced from verified suppliers to ensure reliable performance and accurate measurements.
The AM2302 measures temperatures from -40°C to 80°C with an accuracy of ±0.5°C.
Robocraze provides genuine ASAIR sensors, quality-tested products, secure packaging, GST invoices, fast shipping across India, technical guidance, and dependable after-sales support, making it a trusted choice for electronics enthusiasts, developers, students, and professionals.
I am very happy with the Temperature and Humidity sensor. it works perfectly and gives accurate results.
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Seeed Studio XIAO ESP32-S3 Development Board Supports Wi-Fi & Bluetooth 5.0
It really helps when you send it on time.
There should be a feature to change the delivery method, as having too many options or changes can make things confusing. Kindly look into this. Other than that, everything was very good.
Nice product
It is Amazing and great item in this price
Veri usefull and cheap price from other shopping site, I use this module many project. Thank you robocraze
Seeed Studio XIAO ESP32-S3 Development Board Supports Wi-Fi & Bluetooth 5.0
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