The AHT21 is a high-accuracy Temperature and Humidity Sensor designed for industrial, HVAC, and environmental monitoring applications. It measures temperature from –40 to +120°C with an accuracy of ±0.3°C, and humidity from 0–100% RH with an accuracy of ±2%. With fast response, excellent stability, and low power consumption, the AHT21 is ideal for smart buildings, IoT devices, data loggers, automation systems, and climate monitoring solutions.