DHT11 Temperature & Humidity Sensor Module

Description Product Overview The **DHT11 Temperature and Humidity Sensor Module** is a beginner-friendly, low-cost digital sensor designed for basic environmental monitoring. Unlike the standalone sensor, this **3-pin module version** comes mounted on a PCB with a built-in pull-up resistor and a power LED, making it “plug-and-play” ready for Arduino, Raspberry Pi, and ESP8266 projects. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air, spitting out a digital signal on the data pin. Key Features Dual Functionality: Measures both temperature and relative humidity in a single compact unit. Module Format: Comes pre-soldered on a breakout board with a power LED indicator (red light) and necessary passive components, saving you from breadboard clutter. Easy Interface: Uses a simple single-wire digital interface that works perfectly with standard libraries (like the Adafruit DHT library). 3-Pin Header: Clearly labeled pins for **VCC, DATA, and GND** make wiring simple and error-free. Low Power: Extremely energy efficient, making it suitable for battery-powered weather stations. Technical Specifications Sensor Model: DHT11 Operating Voltage: 3.3V to 5V DC Temperature Range: 0°C to 50°C (Accuracy: ±2°C) Humidity Range: 20% to 90% RH (Accuracy: ±5%) Output Type: Digital Signal Pinout: VCC ( ), DATA (Signal), GND (-) Dimensions: Compact PCB module design Common Applications DIY Weather Stations Smart Home Thermostats Garden/Greenhouse Monitoring Systems Environment Data Logging