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Humidity and Temperature Sensor - DHT22

Humidity and Temperature Sensor - DHT22

Price:

£8.39 (inc Tax) £6.99 (exc Tax)

SKU:

PPSEN-10167

Brand:

SparkFun

Weight:

3.0 Grams

Availability:

5 In Stock For Immediate Despatch A further 2419 can be available within 5 working days

Shipping:

Calculated at checkout

Humidity and Temperature Sensor - DHT22

The DHT-22 is a low cost humidity and temperature sensor with a single wire digital interface. The sensor is calibrated and doesn't require extra components so you can get right to measuring relative humidity and temperature.

Features:

3.3-6V Input
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

Documents:

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Comments

easy to integrate

Posted by Hercules on 6th Jun 2012

very helpful company, excellent sales and tech team
Good, but expensive

Posted by Gareth Halfacree on 26th Sep 2011

The RHT03 (the actual product supplied, which is identical to the DHT22) is quick, accurate, and works on a single wire - but it's also pretty expensive.

There's a full review - plus a link to an Arduino library for communicating with it - over here:
http://hackerrevie.ws/2011/09/the-rht03-digital-temperature-and-humidity-sensor/