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HALJIA DHT21 AM2301 Capacitive Digital Temperature and Humidity Sensor

Regular price $7.99

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  • The DHT21 digital temperature sensor is one of the commonest from the range of DHT temperature sensors and boasts a relatively high temperature measurement accuracy of 0.5'C in 0.1'C steps with a relative humidity accuracy of +/- 3%. It has only 3 wires, including power and ground, meaning only one digital pin is required to interface it to a microcontroller. For Arduino development platforms the sensor is very well supported by the DHT library available from the Arduino Playground website.
  • Model: AM2301 Power supply: 3.3-5V DC; Output signal: digital signal via single-bus; Sensing element: Polymer humidity capacitor; Measuring range: humidity 0-100%RH; temperature: -40~80Celsius
  • Accuracy: humidity +-3%RH(Max +-5%RH); temperature [lessthan]+-1Celsius Resolution or sensitivity: humidity 0.1%RH; temperature 0.1Celsius Repeatability: humidity +-1%RH; temperature +-0.2Celsius
  • Humidity hysteresis: +-0.3%RH Long-term Stability: +-0.5%RH/year Sensing period: Average: 2s
  • Dimensions size: 59 x 27 x 13.5mm

Product description

Power supply: DC 3.5~5.5V; 
Humidity range: 0~100%RH; 
Temperature range: -40~80'C; 
Precision: +-3%RH / +-0.5'C;

Packing List:
1 x Temperature & Humidity Sensor