Catalog > Internet of Things (IOT) Related Products > More Platforms DHT11 Digital Temperature & Humidity Sensor DHT11 Digital Temperature and Humidity Sensor 20~90%RH 0~+60°C ACM TEMP+HUMD DHT11 SENSOR DHT11 DIGITAL TEMPERATURE & HUMIDITY SENSOR ONLY-NOT ON PCB Discontinued Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Overview The four-pin device uses a 1-wire protocol. [Rajendra] discusses the ins and outs of the communications, demonstrating the part using a PIC 16F628. It’s a snap to connect to your project, requiring VCC, GND, and a pull-up resistor on the single data line. We’ve already seen it used on at least one project, and hope to see more of this little guy in your own hacks. Specifications Dimension 28x12x10mm Main chip DHT11 Humidity Sensor Voltage : DC 5V Digital Output Humidity Range: 20~90%RH Humidity accuracy: ±5%RH Temperature range: 0—60°C Temperature accuracy: ±2°C Downloads All the Codes - DHT11 PDF File 90.13 KB References DHT Library from ArduinoHackday description page