Humidity and Temperature Sensor Breakout - Si7021 - SparkFun SEN-13763

Index: SPF-06554 EAN: 5904422375126

Humidity and temperature sensor powered by the voltage from 1.9 V to 3.6 V with I2C interface. The measurement of temperature is from -10°C to 85°C, humidity from 0 to 80% RH.

Humidity and Temperature Sensor Breakout - Si7021 - SparkFun SEN-13763
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Manufacturer: SparkFun
Compatibility: Arduino Raspberry Pi


Easy to use temperature and humidity sensor, powered by 2.5 V to 5.0 V. Communicates through an I2C interface. The sensor is used, i.a. for meteorological stations and systems of control of the conditions in the premises.


For proper operation, it is sufficient to connect power and I2C bus lines: of SDA data and of SCL clock. On board mounted are resistors pulling-up the 4.7 kΩ, if other devices are attached to the I2C bus, these resistors can be disabled.


The product is compatible with Arduino

The manufacturer has prepared auser guideanda library along with a sample programfor Arduino users.


Pins are the solder fields, for solderinggoldpin connectors- pitch of 2.54 mm. Therefore, it is possible to connect the system with the breadboardor the main module, usingwires. The set does not containgoldpin connectors, you can purchase them separately.


  • Supply voltage: 1.9 to 3.6 V
  • Current consumption: 150 µA
  • Current consumption in sleep mode: up to 60 nA
  • Module dimensions: 15 x 15 mm
  • Two mounting holes with a diameter of 3 mm
  • Temperature
    • Measuring range: -10 to 85°C
    • Resolution: 11 to 14 bit (max. of 0.01°C)
    • Accuracy: ± 0,4°C
  • Humidity:
    • Measuring range: 0% RH to 80%RH
    • Resolution: from 8 to 12 bits (max. ±0.025%RH)
    • Accuracy: ± 3%RH*


*RH - relative humidity is expressed in percents. It is the ratio of actual humidity in the air to its maximum number that can keep the air at a given temperature.


Interface I2C
Sensor - Temperature to 85 °C
Sensor - Temperature accuracy +/- 0.4 °C
Sensor - Temperature from -10 °C - 85 °C

Same-day shipping

  • Crediting the payment for the order on our account on a business day before 10:00 AM means sending the goods on the same day.
  • All packages are being delivered by GLS Group courier and covered with insurance up to 1200 EUR.
  • You will receive a link to track your package and monitor the progress of delivery as soon as it is shipped.

Terms of delivery 

GLS - zone 1

Austria, Belgium, Croatia, The Czech Republic, Denmark, Germany, Netherlands, Poland, Slovakia 

  • Delivery time: 2-4 days
  • Delivery cost: from 4.18 EUR
  • Insurance: 1200 EUR
GLS - zone 2

Bulgaria, Estonia, France, Hungary, Italy, Latvia, Lithuania, Luxembourg, Portugal, Romania, San Marino, Slovenia

  • Delivery time: 2-5 days
  • Delivery cost: from 5.35 EUR
  • Insurance: 1200 EUR
GLS - zone 3

Finland, Greece, Ireland, Spain, Sweden 

  • Delivery time: 2-7 days
  • Delivery cost: from 7.67 EUR
  • Insurance: 1200 EUR

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