Please visit our Ebay Store (Categories on left)! We stock many Embedded and Microcontroller related products, like Arduino , Microchip PIC , LCD Displays, Sensors , Wired & Wireless Modules , Connectors , Cables .... and more.
We will ship your item within 1-2 business days FROM SYDNEY . Nearly all orders received before 2pm are shipped the same day .
Shipping is via standard post. We can also ship via Express Post for $8 extra.
Description
This is a very popular, low cost digital temperature and humidity
sensor (also known as RHT03). It uses a capacitive humidity sensor, and a
thermistor to measure the surrounding air temperature. The result is
available via 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. But, for most applications this is not an
issue at all. 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!
The DHT11 (see "Part & Other", "Sensors" in our eBay store) is a low
cost version of this sensor. Compared to the DHT11, this sensor is more
precise, more accurate and works in a wider temperature and humidity
range.
There are many resources on the internet describing how to use it with Arduino, AVR, PIC and other embedded platforms.
Specifications
- 3.3V to 6V Operating Voltage
- 1-1.5mA measuring current
- 40-50 uA standby current
- Humidity from 0-100% RH
- -40 - 80 degrees C temperature range
- +-2% RH accuracy
- +-0.5 degrees C
Documentation, Sample Code and Resources
- The product datasheet in PDF format can be downloaded from: modtronix.com/prod/sens/sens_dht22.pdf
What is included
- 1 x DHT22 Temperature and Humidity Sensor
Orders will be shipped within 1-2 business days from receiving payment. In most cases (close to 100%), orders received before 2pm will
be shipped the same day. All orders are shipped from Sydney (Castle Hill) . For urgent order, contact us to see if your order can be shipped the same day. Items are normally shipped with Australia Post or FastWay, unless
otherwise notes.
Payment is via PayPal, Credit Card or Bank Transfer. When selecting bank transfer, you will receive our bank details from eBay. If a tax invoice is required, please contact us!
If the product is in its original condition you may return any item you purchased from us, for any reason, within 7 days for a full refund.
See below for exceptions. If the returned product is faulty or is returned due to an error on our part, we will pay for the return shipping
cost too! Else, shipping costs are not refundable.
We can not accept returns if:
- The product is not in it's original condition.
- The product is returned later then 7 days after delivery.
- The product is not in it's original wrapper and box.
- If the product is seal wrapped, and has been opened.
Return processing fee:
- When returning non-faulty items, the shipping fee is not refundable, and a $5 processing fee applies.
We are a Sydney based business (Castle Hill), and joined the eBay community 2012. We are available 5 days a week, and do NOT operate our eBay
store on a part time basis! We have been (and still are) operating a successful Electronics business since 2004, and have shipped many 1000s of orders
for this business. We have gained many valuable overseas partners, and specialise in manufacturing and importing high quality products at reasonable prices. You can be sure
your order will be shipped fast and professionally!