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DHT22 Temperature & Humidity Sensor

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Product Code: 0294

Availability: 3

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Rs.380.13 (inc GST)

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3 + 317.31

7 + 312.48

10 + 307.65

20 + 302.81

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Description

DHT22 / AM2302

Digital-output relative humidity & temperature sensor/module DHT22 (DHT22 also named as AM2302)

DHT22 also known as AM2302 is a low cost sensor for measuring Temperature & Humidity. 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.

It utilizes exclusive digital-signal-collecting-technique and humidity sensing technology, assuring its reliability and stability.Its sensing elements is connected with 8-bit single-chip computer.

Every sensor of this model is temperature compensated and calibrated in accurate calibration chamber and the calibration-coefficient is saved in type of program in OTP memory, when the sensor is detecting, it will cite coefficient from memory.

Small size & low consumption & long transmission distance(20m) enable DHT22 to be suited in all kinds of harsh application occasions.

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!

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Product Images are shown for illustrative purposes only and may differ from actual product.

DHT22 Temperature & Humidity Sensor

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