Description:
The DHT11 Temperature and Humidity Sensor is a basic, ultra-low-cost digital sensor that provides calibrated digital output for both temperature and humidity readings. Ideal for DIY electronics and IoT applications, it is widely used in environments where real-time monitoring of ambient conditions is critical. The sensor uses a capacitive humidity sensor and a thermistor to measure the surrounding air, delivering data via a single digital pin, which simplifies interfacing with microcontrollers such as Arduino or Raspberry Pi.
Furthermore, the DHT11 sensor is factory-calibrated, ensuring high reliability and long-term stability. Although its measurement range is somewhat limited compared to other models, it is accurate enough for most hobbyist and light commercial applications. Because of its low power consumption, compact size, and easy integration, the DHT11 is a practical choice for environmental monitoring, weather stations, and smart home systems.
Specifications:
- Humidity Measurement Range: 20–90% RH (±5% RH accuracy)
- Temperature Measurement Range: 0–50°C (±2°C accuracy)
- Operating Voltage: 3V to 5.5V DC
- Sampling Rate: 1Hz (one reading per second)
- Output: Digital signal via single-bus communication
- Signal Transmission Distance: Up to 20 metres (with proper pull-up resistor)
- Power Consumption: Max 2.5mA during data conversion
- Dimensions: 15.5mm x 12mm x 5.5mm
- Sensor Type: Capacitive humidity sensor and NTC thermistor
- Interface: 3-pin (VCC, Data, GND)
Features:
- Low cost and easy to use with microcontrollers
- Digital output eliminates need for analogue input
- Factory-calibrated for improved reliability
- Long-term stability and low power consumption
- Compact and lightweight design
Contents:
- 1 x DHT11 Temperature and Humidity Sensor Module
