DHT22 Sensor

Specifications 1.Three months warranty ,

2. CHINA MADE ,

3.Fast Delivery ,

4.Best price,

5.Great quality

DHT22 digital temperature and humidity sensor Temperature and humidity module AM2302 replace SHT11 SHT15     Specifications :
The DHT22 is a basic, low-cost digital temperature and humidity sensor. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air, and spits out a digital signal on the data pin (no analog input pins needed). Its fairly simple to use, but requires careful timing to grab data. The only real downside of this sensor is you can only get new data from it once every 2 seconds, so when using our library, sensor readings can be up to 2 seconds old. 

Simply connect the first pin on the left to 3-5V power, the second pin to your data input pin and the right most pin to ground. Although it uses a single-wire to send data it is not Dallas One Wire compatible! If you want multiple sensors, each one must have its own data pin! 
  Compared to DHT11,this sensor is more precise, more accurate and works in a bigger range of temperature/humidity, but its larger and more expensive                       Shipping 
Terms:   1.We arrange shipment 
within 1-3 working days after confirming buyer's payment.   2.We usually ship via 
Global express company: UPS/DHL/TNT/EMS/Fedex.if you have better express service 
comapny, Pls tell us then. We'll choose your preferred ways. For the Countries 
& Regions where EMS cannot deliver,pls choose other shipping 
ways.   3.We are not responsible 
for any accidents, delays or other issues that are the responsibility of the 
express company .   4.Any import duty or 
charges are for the buyer's responsibility.       Refund & 
Replacement terms:   1.We provide 60 days 
quality guarantee period usually .   2.If the Electronics 
component you purchase from our copmany are not of perfected quality, and don't 
work electronically to manufacturers specifications, please return them to us 
for replacement or refund  .   3.If the Electronics 
component is defective, pls notify us within 3 days of delivery.   4.Any Electronics 
component must be returned in their original condition to qualify for a refund 
or replacement.   5.All the shipping cost 
incurred is for buyer.     We have a lot of stocks 
and reliable price. We welcome customers, business associations and friends all 
over the world to contact us and seek cooperation for mutual 
benefits.     Contact: Elena Deng Tel:    0086-755-88848115 ext:803          Skype:sales4WONDERWING Moblie: 0086-13927409682                      Website: www.hkwonderwing.com