{"product_id":"dht22-am2302-digital-temperature-humidity-sensor-module-arduino","title":"DHT22 AM2302 Temperature Humidity Sensor Module for Arduino","description":"\n\u003ch2\u003eGUANDO DHT22 \/ AM2302 Digital Temperature \u0026amp; Humidity Sensor Module\u003c\/h2\u003e\n\u003cp\u003eTake the guesswork out of environmental monitoring with the \u003cstrong\u003eGUANDO DHT22 (AM2302) Digital Temperature \u0026amp; Humidity Sensor Module\u003c\/strong\u003e. Engineered for makers, hobbyists, and engineers alike, this ultra-low-power, high-precision 4-pin sensor board plugs directly into your Arduino (Uno R3 and compatible), Raspberry Pi, or any microcontroller project — no additional components required. Get reliable, calibrated digital readings right out of the box.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Choose This Sensor Module?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Precision Readings:\u003c\/strong\u003e Temperature accuracy of ±0.5°C and humidity accuracy of ±2%RH ensure you can trust every data point.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Measurement Range:\u003c\/strong\u003e Covers temperatures from -40°C to 80°C and humidity from 0% to 99.9% RH — ideal for indoor and outdoor environmental monitoring.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUltra-Low Power Consumption:\u003c\/strong\u003e Runs efficiently at 3V–5.5V, making it perfect for battery-powered and energy-sensitive projects.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e16-Bit Resolution:\u003c\/strong\u003e Delivers highly granular data (0.1 resolution) for precise environmental tracking and data logging.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFully Calibrated Digital Output:\u003c\/strong\u003e All sensor calibration is handled internally — readings come out as clean digital signals with no analog-to-digital conversion needed on your end.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLong-Distance Signal Transmission:\u003c\/strong\u003e Stable digital signal over longer cable runs, giving you flexible installation options.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompletely Interchangeable:\u003c\/strong\u003e Consistent performance across units means you can swap sensors in multi-sensor setups without recalibration.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExcellent Long-Term Stability:\u003c\/strong\u003e Built to maintain measurement accuracy over extended operational periods.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSimple 4-Pin Interface:\u003c\/strong\u003e Easy wiring for beginners and experienced developers alike — no extra resistors or breakout boards required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDHT22 \/ AM2302\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDigital Signal\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-40°C to 80°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±0.5°C (max ±1°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHumidity Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0% to 99.9% RH (0°C–50°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHumidity Accuracy\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±2% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16-bit (0.1 precision)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSampling Period\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWorking Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3V – 5.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePin Count\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4-pin package\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensor Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eResistance Sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMetal\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's in the Box?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × AM2302 \/ DHT22 Temperature and Humidity Sensor Module\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePerfect For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eArduino \u0026amp; Raspberry Pi DIY projects\u003c\/li\u003e\n  \u003cli\u003eHome automation and smart environment systems\u003c\/li\u003e\n  \u003cli\u003eGreenhouse and grow room climate monitoring\u003c\/li\u003e\n  \u003cli\u003eWeather stations and data logging\u003c\/li\u003e\n  \u003cli\u003eHVAC monitoring and control systems\u003c\/li\u003e\n  \u003cli\u003eIndustrial and laboratory environmental sensing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/eye-face-protection\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on eye and face protection\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Is the DHT22 AM2302 sensor compatible with Arduino Uno R3 and other microcontrollers?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The DHT22 \/ AM2302 digital temperature and humidity sensor module is fully compatible with Arduino Uno R3, Arduino Mega, Raspberry Pi, ESP8266, ESP32, and most 3.3V–5V microcontroller boards. Its standard 4-pin interface and single-wire digital output make integration straightforward with widely available libraries.\u003c\/p\u003e\n\u003ch4\u003eQ: Do I need extra components or a resistor to use this DHT22 sensor module?\u003c\/h4\u003e\n\u003cp\u003eA: No additional components are required. The module board comes ready to connect directly to your microcontroller's digital pin, power, and ground. Some projects may optionally add a 10kΩ pull-up resistor on the data line for longer cable runs, but for standard connections it works plug-and-play.\u003c\/p\u003e\n\u003ch4\u003eQ: What is the sampling rate of the DHT22 AM2302 temperature and humidity sensor?\u003c\/h4\u003e\n\u003cp\u003eA: The DHT22 \/ AM2302 sensor has a sampling period of 2 seconds, meaning it provides a new temperature and humidity reading every 2 seconds. This makes it well-suited for environmental monitoring applications where near-real-time data is important without overwhelming your microcontroller.\u003c\/p\u003e\n\u003ch4\u003eQ: What is the difference between DHT22 and AM2302?\u003c\/h4\u003e\n\u003cp\u003eA: The DHT22 and AM2302 are functionally identical sensors — they share the same measurement specifications, communication protocol, and pin layout. The AM2302 is simply the OEM\/manufacturer part number for what is commonly marketed as the DHT22. They are completely interchangeable in your projects.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Is the DHT22 AM2302 sensor compatible with Arduino Uno R3 and other microcontrollers?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! 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