The DHT11 Sensor Relay Module is a practical and cost-effective solution for measuring and controlling temperature and humidity in various applications. Combining a simple DHT11 temperature and humidity sensor with a relay module, this device enables automation in systems where environmental conditions need to be monitored and controlled. It is especially useful in projects involving smart homes, agricultural automation, and basic environmental monitoring.

Overview of the DHT11 Sensor The DHT11 sensor is a popular, low-cost, digital temperature and humidity sensor commonly used in embedded systems. It measures the temperature and humidity in the environment and transmits the data through a single-wire digital signal. The DHT11 offers a relatively narrow range of operation compared to more advanced sensors, but its simplicity and affordability make it an excellent choice for many basic projects. Temperature Range： 0 to 50°C with an accuracy of ±2°C. Humidity Range： 20% to 80% relative humidity with an accuracy of ±5% RH. The DHT11 sensor is designed to be easy to use, providing a digital output that simplifies its integration with microcontrollers like Arduino and Raspberry Pi. It is ideal for applications where high accuracy is not critical but where a low-cost solution is needed for measuring environmental parameters.