Grove - Temperature & Humidity Sensor Pro (DHT22/AM2302)

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Grove - Temperature & Humidity Sensor Pro (DHT22/AM2302)

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Item no: F23106395

Grove - Temperature and Humidity Sensor Pro (DHT22 / AM2302) Grove - DHT22 is a high precision temperature and humidity sensor (also known as AM2302 or RHT03). Its high cost performance and high precision make it ideal for Arduino and Raspberry Pi temperature and humidity monitoring. You can also use it to make a thermometer and hygrometer. Using an integrated 8-bit microcontroller, the DHT22 converts the analog output of these two sensors into a digital signal and outputs both... more

Grove - Temperature and Humidity Sensor Pro (DHT22 / AM2302)

Grove - DHT22 is a high precision temperature and humidity sensor (also known as AM2302 or RHT03). Its high cost performance and high precision make it ideal for Arduino and Raspberry Pi temperature and humidity monitoring. You can also use it to make a thermometer and hygrometer.

Using an integrated 8-bit microcontroller, the DHT22 converts the analog output of these two sensors into a digital signal and outputs both temperature and humidity data via a single pin.

Applications

Environmental monitoring
Thermometers and hygrometers
Dehumidifiers

Features

High accuracy and wide range of temperature and humidity measurements:
Humidity: 0 to 99.9 % RH with an accuracy of ±2 %
Temperature: -40 to 80 °C with an accuracy of ±0.5 °C
Extremely low power consumption: standby power supply only 40 uA
Professional choice for relatively demanding applications: outperforms the basic DHT11
Better compatibility: digital output of sensor data, I²C interface makes it more versatile
Starter-friendly: Factory calibrated, easy to use and supported by detailed wiki and documentation

Model comparison	DHT22	DHT20	DHT11
Supply voltage	Direct current: 3.0 - 6.0 V	Direct current: 2.0 - 5.5 V	Direct current: 3.3 - 5.5 V
Measuring range (temperature)	-40 ~ + 80 ℃	-40 ~ + 80 ℃	-20 ~ + 60 ℃
Measuring range (humidity)	0 ~ 100 % relative humidity	0 ~ 100 % relative humidity	5 ~ 95 % relative humidity
Temperature accuracy	± 0,5 ℃	± 0,5 ℃	± 1 ℃
Humidity accuracy	± 2 % RH (25 ℃)	± 3 % RH (25 ℃)	± 5 % RH (25 ℃)
Output signal	I2C signal	I2C signal	1-wire

DHT22 and DHT11 are both excellent temperature and humidity sensors and are commonly used in Arduino and Raspberry Pi projects. However, in comparison, the DHT22 outperforms the DHT11 in every way, from temperature range to temperature accuracy and humidity range to humidity accuracy. The slightly higher price gives you better specifications.

Technical details

Dimensions: 40mm x 20mm x 11mm
Weight: 11g

What is Grove?

Grove facilitates connection, experimentation and simplifies the prototyping process. No jumpers or soldering are required. More than 300 Grove modules have been developed to cover a wide range of applications and fulfill a variety of requirements. Not only the hardware is open source, but also the software.

We offer various Grove shields to enable a connection to the Grove system with various microcontrollers.

Scope of delivery:

1x Grove - Temperature and humidity sensor Pro (DHT22/AM2302)
1x Grove cable

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