Please note that the sensor should only be used in an environment where the humidity is pure water vapor. Special sealed environments such as black garlic fermentation, gas fermentation… will produce fungi and bacteria that adhere to the sensor surface and damage the sensor.
The DHT21 AM2301/AM2301A Temperature Humidity Sensor is used to measure the humidity and temperature of the air. The sensor is durable and stable, using 1-wire communication with the microcontroller easily with only one signal wire, suitable for applications that need to measure humidity, temperature in agriculture, smart homes, etc.
Technical specifications:
Operating voltage: 3.3VDC Consumption current: 300 uA Size: 58.8 x 26.7 x 13.8 (mm) Model: AM2301 Resolution accuracy: 0.1 Measuring range: 0-100% RH Temperature measurement range: -40 ℃ ~ 80 ℃ Humidity measurement accuracy: ± 3% RH Temperature measurement accuracy: ± 0.5 ℃