DHT22/AM2302 Temperature and Humidity Sensor, Temperature & Humidity Sensor
DHT22/AM2302 Temperature and Humidity Sensor, Temperature & Humidity Sensor
Overview
- Provides superior ±0.5°C temperature accuracy for precise environmental control
- Handles extreme -40°C to +80°C range across diverse global climates
- Delivers 0.1°C / 0.1% RH high resolution for detecting subtle changes
- Features simple single-wire digital interface using just one MCU pin
- Ensures 100m stable signal transmission with strong EMI resistance.
- Offers ultra-low <50μA standby power for battery-powered IoT devices.
- Guarantees <±0.5% RH/year long-term stability over 5+ years.
- Supports universal 3.3-5.5V operation across all major microcontrollers.
- Complies fully with RoHS standards for global regulatory approval.
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DHT22/AM2302 Digital Temperature and Humidity Sensor Module， Temperature Humidity Monitor Sensor ，Replace SHT11 SHT15 for Arduino Electronic Practice DIY
Product Description
DHT22/AM2302 Temperature and Humidity Sensor is a high-accuracy, digital sensing device designed for indoor and semi-outdoor environmental monitoring. Compared to entry-level sensors, it provides a wider measurement range, higher precision, and better long-term stability.
Integrating a calibrated humidity sensing element and a high-precision NTC temperature component, the sensor delivers reliable digital output via a single-wire interface. Its robust performance and compact design make it ideal for smart home systems, HVAC controllers, consumer electronics, and advanced IoT applications.
Built for consistent batch quality and long production life, the DHT22/AM2302 helps manufacturers reduce BOM costs while maintaining dependable environmental monitoring.
Advantages of DHT22/AM2302 Temperature and Humidity Sensor
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High-precision digital sensor for accurate environmental monitoring
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Wide measurement range: 0–100% RH and –40°C to +80°C
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Typical humidity accuracy ±2% RH, temperature accuracy ±0.5°C
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Single-wire digital interface requiring only one MCU I/O pin
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Low power consumption suitable for battery-operated or wireless devices
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Excellent long-term stability for indoor and semi-outdoor applications
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Compact design for seamless integration into space-constrained products
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Fast response time for real-time monitoring
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Factory calibrated, ensuring consistent performance
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RoHS compliant and ready for global distribution
DHT22/AM2302 Temperature and Humidity Sensor Specifications
| Parameter | Specification |
|---|---|
| Sensor Type | Digital Temperature & Humidity Sensor |
| Humidity Range | 0–100% RH |
| Humidity Accuracy | ±2% RH (typical) |
| Temperature Range | –40°C to +80°C |
| Temperature Accuracy | ±0.5°C (typical) |
| Resolution | 0.1% RH / 0.1°C |
| Output Type | Single-wire digital interface |
| Response Time | ≤2 seconds (typical) |
| Operating Voltage | 3.3V – 6V DC |
| Current Consumption | ≤2.5 mA (measuring) |
| Long-Term Stability | <0.5% RH/year (typical) |
| Calibration | Factory calibrated |
| Packaging Options | Bare sensor or module version |
| Compliance | RoHS compliant |
Typical Applications of DHT22/AM2302 Temperature and Humidity Sensor
HVAC & Building Automation
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Indoor climate control and energy-efficient ventilation
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Smart thermostats and air quality monitoring
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Advanced building management systems
Agriculture & Greenhouses
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Precise irrigation and ventilation control
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Soil moisture correlation with ambient humidity
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Crop protection in controlled environments
Industrial Monitoring
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Warehouse, storage, and data center environmental control
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Pharmaceutical and food storage compliance
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Precision monitoring in semi-outdoor industrial setups
Consumer & IoT Devices
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Smart home hubs and weather stations
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Desktop environmental monitors
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Wearable prototypes and hobbyist electronics
Automotive & Transportation
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Cabin climate monitoring in electric and hybrid vehicles
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Cargo and perishable goods humidity tracking
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RV, marine, and transport environmental systems
Related Products
- DHT11 Temperature And Humidity Sensor
- Industrial Temperature and Humidity Sensor (RS485 / Modbus)
- WiFi Temperature and Humidity Sensor
- Bluetooth Temperature and Humidity Sensor
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Strict Production Process
High purity silica (usually quartz or sand) and carbon (usually petroleum coke or coal) are ground to produce fine powder.
High purity silica (usually quartz or sand) and carbon (usually petroleum coke or coal) are ground to produce fine powder.
High purity silica (usually quartz or sand) and carbon (usually petroleum coke or coal) are ground to produce fine powder.
High purity silica (usually quartz or sand) and carbon (usually petroleum coke or coal) are ground to produce fine powder.
High purity silica (usually quartz or sand) and carbon (usually petroleum coke or coal) are ground to produce fine powder.
High purity silica (usually quartz or sand) and carbon (usually petroleum coke or coal) are ground to produce fine powder.
Strict Production Process of Yafeite
