Product Description:

YJJ DHT21 Digital Temperature and Humidity Sensor Is Used in Air Purifiers

Features:

DHT21 sensor is commonly used in graduation projects to measure the temperature and humidity data of the environment. The DHT11 sensor has a wide measurement range, capable of measuring relative humidity from 20% to 90% and temperature from 0°C to 50°C. Its humidity measurement accuracy is ±5% RH, temperature measurement accuracy is ±2°C, and the resolution is 1. This makes the DHT11 suitable for many application scenarios.

Main specification parameters of the DHT21 ( AM2301 ) digital temperature and humidity sensor are as follows:

Measurement range

‌Humidity‌: 0 - 99.9% RH

‌Temperature‌: -40℃ ~ +80℃

Accuracy and Resolution

‌Humidity‌: ±3% RH

‌Temperature‌: ±0.5℃

Resolution: Humidity 0.1% RH, Temperature 0.1℃

Power Supply and Communication

‌Voltage‌: 3.3V to 5.5V (typical operating voltage 3.3V)

Power consumption: Approximately 500 μA (supply current)

Interface: Single bus interface (requires only one data line)

Storage conditions

Recommended storage temperature range: 10℃ to 50℃, humidity 20% to 60% RH. This is to prevent component performance from drifting.

Typical application

Suitable for scenarios such as air purifiers, humidifiers, dehumidifiers, environmental monitoring equipment, etc.

Specifications:

Yijiajie Electronics is a full range of silicon pressure sensors from the United States, FREESCALE/, GE, MEAS, SMI, and a full range of sensing and control products from the United States pressure, temperature and humidity, gas flow, current, Hall effect, etc., Japan HAMAMATSU flame, UV sensors, photodiodes, Japan FIGARO, UK CITY, ALPHASENSE full range of semiconductors, catalytic, electrochemical gas sensors, French HUMIREL/MEAS humidity sensors and other international well-known companies authorized agents or distributors, to provide customers with product information, products Solutions, product selection, supply guarantee and logistics services, etc.