DHT22 temperature-humidity sensor

For all the makers and hackers and DIY Projects, here is a basic, low-cost digital temperature and humidity sensor – DHT22. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air, and gives out a digital signal on the data pin (no analog input pins needed). It’s fairly simple to use. Simply connect the first pin on the left to 3-5V power, the second pin to your data input pin and the rightmost pin to ground. To connect multiple sensors, each one must have its own data pin.

Specification

• Low cost
• 3 to 5V power and I/O
• 2.5mA max current use during conversion (while requesting data)
• Good for 0-100% humidity readings with 2-5% accuracy
• Good for -40 to 80°C temperature readings ±0.5°C accuracy
• No more than 0.5 Hz sampling rate (once every 2 seconds)
• Body size 27mm x 59mm x 13.5mm (1.05″ x 2.32″ x 0.53″)
• 4 pins, 0.1″ spacing
• Weight (just the DHT22): 2.4g

Have a look at other PiBOX India Raspberry Pi Boards, Combo Kits, IoT accessory, Data Accessory Products. All products come with manufacturer warranty.