Arduino DHT22 humidity and temperature sensor

Arduino DHT22 humidity and temperature sensor

Description:

Sensor DHT22 is use for highly precious temperature and humidity measuring. Data transfer ongoing on one line (conductor) based on own protocol. Sensor DHT22 could be use in devices with microcomputer Arduino, AVR, PIC, ARM etc. Sensor is in socket appropriate for outdoor use. Typically, applications are meteorological stations, systems for autonomous heating and systems for irrigating control. 

Parameters:

• Interface: 1-conductor;
• Voltage span: 3,3 to 5,5 V;
• Temperature measure:
• Acceptable span: -40 °C .. +80 °C;
• Maximal deviation: ±1 °C;
• Scale resolution: 0,1 °C;
• Relative humidity measure:
• Acceptable span: 0..99,9 %;
• Minimal deviation: ±2 % +25 °C;
• Maximal deviation: ±4 %;
• Scale resolution: 0,1 %;
• Scale resolution: 0,1 %;
• Minimal time between samples: 2 s;
• Distance between pins: 2,54 mm;
• Dimensions: 25 x 15 x 7 mm.

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