DHT22 Digital Temperature and Humidity Sensor

The DHT22 Digital Temperature sensor measures both air temperature and humidity through a single digital data pin (a communication line that sends readings as digital pulse sequences rather than analog voltages). The dht22 sensor price reflects its accuracy compared to basic sensors, covering a temperature range of -40°C to 80°C and a humidity range of 0 to 100 percent RH at 3.3V to 5V operating voltage.

The dht22 sensor uses a capacitive humidity element (a component that changes electrical capacitance with moisture content) and a thermistor (a temperature-sensitive resistor) built onto a single housing. The DHT22 requires a pull-up resistor (typically 10K ohm) on the data line for reliable communication.

The dht22 digital sensor connects to Arduino GPIO pins through a standard three or four-pin header. building weather monitors, humidity loggers, and greenhouse controllers use it this sensor. To start, connect VCC, GND, and data with a 10K pull-up resistor, then install the DHT sensor library in Arduino IDE. StemVolt provide this sensor tested for confirmed temperature and humidity output.

Related Product:

• Checkout The DHT11 Humidity And Temperature Sensor Module

Features:

• Combined temperature and humidity sensing in single 4-pin package
• -40°C to +80°C range with ±2-5% RH humidity precision
• Single-wire digital protocol simplifies wiring, requires library for reading
• 10kΩ pull-up resistor on data line for reliable communication
• 3.3V to 5V compatible with both 3.3V and 5V boards

Technical specifications:

 Applications:

• Compact DHT22 used for Arduino wearable temperature humidity build
• College project uses dht22 sensor for space-saving environmental demo
• IoT node uses dht22 digital sensor for India compact climate logger
• PCB design uses dht22 digital temperature and humidity sensor for tight enclosures
• Portable kit uses dht22 sensor 4pins for handheld weather meter

Package includes:

• 1 x DHT22 Digital Temperature