DHT22 Temperature / Humidity Sensor

$9.95

Availability: In Stock

The DHT22 is a basic digital temperature and humidity sensor. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air  with accuracies of +/- 0.5°C and +/- 2% relative humidity.

Available

SKU: SEN-003 Manufacturer: ASAIR Mfg Part Number: DHT22 Categories: , Tags: , , , ,

Description

The DHT22 is a basic digital temperature and humidity sensor. The sensor uses the same internals as the AM2302, but sits in a much more compact, breadboard friendly package. 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 sensor is accurate to +/- 0.5°C and +/- 2% relative humidity. This version is breadboard compatible and works well with the Arduino, Raspberry Pi, and just about anything else with a digital I/O pin available.

We recommend a 5.1K Ohm pull up resistor between the power and output line on this sensor to ensure nice, stable communication.

Features

  • Temperature Accuracy: +/- 0.5°C
  • Temperature Range: -40 - 80°C
  • Temperature Resolution: 0.1°C
  • Max Current: 2.5mA
  • Voltage: 3 - 5VDC
  • Relative Humidity Accuracy: +/- 2%
  • Relative Humidity Resolution: 0.1%
  • Sample Rate: 0.5Hz (once every 2 seconds)
  • Size: 15.3 x 26 x 7.7mm / 0.6 x 1 x 0.3˝
  • Breadboard friendly

Package Contents

  • 1 x DHT22 Temperature / Humidity Sensor

May We Also Suggest…

AM2302 Temperature/Humidity Sensor
Price: $15.95
 
AM2320 Temperature/Humidity Sensor – I2C
Price: $5.95
 
DHT11 Temperature / Humidity Sensor
Price: $4.95
 

   

  Difficulty Level

Soldering Skill: N/A
Prototyping Skill: Beginner
Programming Skill: Beginner

  Product Certifications

  Product Attributes

Weight: 3 g

  Warranty Policy

This product has a 30 Day Warranty from the date of delivery. The item must not be modified, abused, incorrectly hooked up, or used for purposes outside the original scope of design.

  Return Policy

This product is returnable Within 14 Days of delivery for a store credit. Item must be unopened, unused, and in re-saleable condition.

 
More Information:
For more information on our Warranty and Return Policies, please consult our   Terms of Service
 

Comments

There are no comments yet.

Be the first to comment on “DHT22 Temperature / Humidity Sensor”

Your email address will not be published. Required fields are marked *