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

#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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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

Si7021, I2C temperature and humidity measurement Offers

Si7021 Industrial High Precision Humidity Sensor I2C Interface for Arduino
Si7021 Industrial High Precision Humidity Sensor I2C Interface for Arduino
$2.43
-9% Industrial High Precision Si7021 Humidity Sensor with I2C Interface
Industrial High Precision Si7021 Humidity Sensor with I2C Interface
$2.62 $2.91
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GY-213V-SI7021 Si7021 3.3V High Precision Humidity Sensor with I2C Interface For Arduino
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Humidity Sensor with I2C Interface Si7021 for Arduino Industrial High Precision
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Feamos Si7021 Industrial High Precision Humidity Sensor with I2C Interface for Arduino
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Si7021 Industrial High Precision Humidity Sensor I2C Interface for Arduino
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Adafruit (PID 3251) Si7021 Temperature & Humidity Sensor Breakout Board
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SparkFun Humidity and Temperature Sensor Breakout - Si7021
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Industrial High Precision Si7021 Humidity Sensor with I2C Interface Arduino - US
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Si7021 Temperature And Humidity Sensor/Applications HVAC/R Thermostats/Humidistats Indoor Weather Stations Automotive Climate...
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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 28 May 2018 2 h 04 min.
Specification

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Sensors: Temperature | humidity

Output | Relay: 0

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