#Deal: Si7021, I2C temperature and humidity measurement for Arduino, ESP8266, ESP Easy, Raspberry Pi projects

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$2.43

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Set Alert for Product: Si7021 Industrial High Precision Humidity Sensor I2C Interface for Arduino - $2.43
Last Amazon price update was: 12 December 2017 4 h 04 min
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The Si7021 sensor enables accurate temperature and humidity measurements. It is equivalent in terms of characteristics to DHT22. It is a much more compact digital sensor (like the SHT30 used by Wemos for its shield or the Xiaomi temperature sensor) which transmits the measurements via the I2C bus. It will be very easy to integrate into Arduino, ESP8266 and Raspberry Pi projects. It is supported by ESP Easy firmware for ESP8266 WiFi modules.

Technical characteristics of Si7021

  • Temperature measuring range: -10°C to +85°C
  • Measuring accuracy: +/- 4°C
  • Range of humidity measurement: 0 to 80% RH
  • Measurement accuracy: +/- 3%
  • Supply voltage: 1,9 to 3,6V
  • I2C output

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  • All prices mentioned above are in United States dollar.
  • This product is available in Ebay, AliExpress, Banggood, Amazon.com.
  • At ebay.com you can purchase Si7021 Industrial High Precision Humidity Sensor I2C Interface for Arduino for only $2.43, which is 91% less than the cost in Amazon.com ($27.66).
  • The lowest price of Si7021 Temperature And Humidity Sensor/Applications HVAC/R Thermostats/Humidistats Indoor Weather Stations Automotive Climate Control And Defogging was obtained on 15 August 2018 2 h 03 min.
Specification

Filters

Sensors: Temperature | humidity

Output | Relay: 0

tags: EAN List: 0717520029779; 0717520028758; 7442870792372; 6083989203512; 6083989203512; 9320689532076; 6514138613833; 0769471400381

 

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