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Digital Humidity/Temperature Sensor DHT22 (RHT03)
Separate quantity discounts may be applicable, see below. CHF 11.70

Stock: -21

This product is currently out of stock. You might want to set a notification to receive a short one-time email when the product returns to stock next time.

This 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.

DHT22 has output calibrated digital signal. 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 calibrated in accurate calibration chamber and the calibration-coefficient is saved in type of programme in OTP memory, when the sensor is detecting, it will cite coefficient from memory.

In comparison with the DHT11, the DHT22 has a wider measurement range and higher accuracy.


  • Relative humidity and temperature measurement
  • Extra components are not needed
  • Long transmission distance low power consumption
  • Dimensions: 12 X 15.5 X 15mm
  • Outstanding long-term stability and reliability
  • Low power consumption


  • Power supply: 3.3 to 6V DC
  • Output signal: digital signal via single-bus
  • Interchangeability: fully interchangeable
  • Range of meauring humidity: 0% to 100%RH(0-50℃temperature compensation)
  • Range of meauring temperature: -40 to +80℃
  • Accuracy of measuring humidity: 2.0%RH (at 60% and 25°)
  • Accuracy of measuring temperature: 0.5℃
  • Response time: <5s
  • Supply Current:
    • Mesurement: 1 to 1.5 mA
    • Average: 0.2 to 0.5 mA
    • Stand by: 40 to 50 uA


Quantity       Discount    Unitprice
from 3    8%    CHF 10.80
from 5    12%    CHF 10.26
from 10    17%    CHF 9.67
For more information, please visit this products webpage.
This product was added to our catalog on Tuesday 02 August, 2011.
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