AHT21B_V1.0 Digital Temperature and Humidity Sensor Module

AHT21B_V1.0 Digital Temperature and Humidity Sensor Module The AHT21B_V1.0 Digital Temperature and Humidity Sensor Module is a high-precision environmental sensing device designed to provide accurate readings of temperature and relative humidity. It integrates a calibrated digital sensor element with a microcontroller unit, enabling stable and reliable measurements. The module communicates via an I2C interface, making it easy to integrate with popular development platforms such as Arduino, Raspberry Pi, and other microcontrollers. This sensor module is widely used in applications that require environmental monitoring, such as smart home systems, weather stations, HVAC control, and industrial automation. Its compact size and low power consumption make it suitable for portable and battery-powered devices. The AHT21B improves upon earlier models with enhanced accuracy, faster response time, and better long-term stability, making it a preferred choice for modern IoT and embedded projects. Features: Digital temperature and humidity sensing. High accuracy and stability. Fast response time. I2C communication interface. Factory calibrated sensor. Compact and lightweight design. Low power consumption. Strong anti-interference capability. Wide compatibility with microcontrollers. Specifications: Parameter Value Operating Voltage 2.0V – 5.5V Temperature Range -40°C to +85°C Humidity Range 0% to 100% RH Temperature Accuracy ±0.3°C Humidity Accuracy ±2% RH Interface I2C Address 0x38 Response Time 8 seconds Pinout: Applications: Weather monitoring systems. Smart home automation. HVAC systems. Industrial environmental monitoring. IoT projects. Data logging systems. Agriculture monitoring. Package Includes: 1x AHT21B_V1.0 Digital Temperature and Humidity Sensor Module. Documents: AHT21B_V1.0 Datasheet.