AHT21B Temperature & Humidity Sensor (I2C, High Precision)

Key Features:

• High-Precision Sensing:
  • Temperature Range: -40°C to 85°C, ±0.3°C accuracy
  • Humidity Range: 0 – 100% RH, ±2% accuracy
• I2C Digital Output: Simple two-wire interface for seamless microcontroller integration
• Compact Design: Ultra-small 12mm × 12mm × 1mm, perfect for embedded applications
• Low Power Consumption: Operates on 3.3V, ideal for battery-powered devices
• Reliable Performance: High stability and fast response time

Technical Specifications:

• Model: AHT21B
• Operating Voltage: 3.3V
• Temperature Accuracy: ±0.3°C
• Humidity Accuracy: ±2% RH
• Interface: I2C (0x38 address)
• Weight: 1g
• Size: 12mm × 12mm × 1mm

Ideal for Environmental Monitoring & Industrial Applications

The AHT21B sensor provides high-precision temperature and humidity monitoring, making it ideal for weather stations, laboratories, warehouses, pharmaceuticals, and industrial environments. Its digital I2C interface ensures seamless data acquisition with minimal setup.

Why Choose This Sensor?

✔ Accurate & Stable Readings – High-precision measurements with low drift
✔ Ultra-Compact Design – Perfect for embedded IoT and smart devices
✔ Easy I2C Integration – Works with Arduino, ESP32, STM32, Raspberry Pi