The DHT11 Temperature and Humidity Sensor Module is a reliable, low-cost digital composite sensor designed for measuring ambient environmental conditions. It features a calibrated digital signal output, ensuring excellent long-term stability and high reliability over extended periods of use. The module integrates a resistive-type humidity measurement component and an NTC temperature measurement device, connected directly to a high-performance 8-bit microcontroller. This internal setup guarantees fast response times, exceptional anti-interference capability, and high-quality performance.The primary purpose of the DHT11 is to provide accurate, real-time climate data to microcontrollers and development boards. It communicates via a single-wire serial interface, making system integration quick, simple, and efficient for electronic circuits. Because of its small form factor and low power consumption, it is a staple component in various automated systems and custom electronics projects.This versatile sensor module finds extensive applications in weather stations, home automation systems, climate control units, environmental monitoring setups, and smart agriculture devices. It is particularly valued in HVAC systems to regulate room temperatures and dehumidifiers to maintain optimal moisture levels.The DHT11 is highly accessible and perfectly suited for hobbyists, engineering students, educators, makers, and professional electronic developers. Its pre-soldered 3-pin breakout board design eliminates complex wiring, allowing beginners to securely connect it to breadboards or development environments without specialized tools. Whether you are building an introductory STEM project or establishing a data-logging environment, this sensor delivers a practical, budget-friendly entry point into climate data acquisition.Key FeaturesDual-Function Sensor: Measures both ambient temperature and relative humidity simultaneously with a single data pin.Digital Signal Output: Features a pre-calibrated digital single-bus signal output for reliable data transmission.High Reliability: Built with dedicated digital modules and sensing technology to ensure long-term performance stability.Fast Response Time: Delivers quick data acquisition and responsive environmental updates for microcontrollers.Excellent Anti-Interference: Provides stable performance even in busy electronic testing environments.Low Power Consumption: Operates efficiently on minimal current, making it ideal for battery-powered or portable setups.Breakout Board Design: Mounted on a convenient 3-pin PCB with clear labels for VCC, GND, and DATA lines.Wide Compatibility: Integrates seamlessly with popular development platforms like Arduino, Raspberry Pi, ESP32, and PIC.Compact Form Factor: Small footprint allows it to fit easily into tight enclosures and modular project layouts.Cost-Effective Solution: Offers an extremely budget-friendly choice for educational STEM kits and prototyping.Technical SpecificationsSpecificationDetailProduct NameTemperature and Humidity Sensor ModuleModelDHT11Part NumberDHT11-3PINDimensionsApprox. 32mm x 14mm x 7mmWeightApprox. 3gVoltage3.3V to 5V DCCurrent2.5mA max current use during conversion (sampling)MaterialPlastic housing on fiberglass PCBColorBlue sensor, Black PCBCompatibilityArduino, Raspberry Pi, ESP32, STM32, and other microcontrollersPackage Contents1 x DHT11 Sensor Module with 3-Pin Breakout BoardHumidity Range20% to 90% RH (±5% RH accuracy)Temperature Range0°C to 50°C (±2°C accuracy)Sampling Period1 second (or greater)