Si7021 I2C Temperature & Humidity Sensor Maximize

Si7021 I2C Temperature & Humidity Sensor

Measure relative humidity and temperature accurately with this I2C Humidity & Temperature Sensor! Accurate to ± 3% RH and ±0.4 °C. Arduino and Raspberry Pi Compatible.

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Availability: SHIPS TODAY

Last Updated: 06/22/2024





  • Operating Voltage: 1.9V to 3.6V Input
  • Operating Humidity: 0-100% Relative Humidity
  • Communication Protocol: I2C
  • Active Current: 150mA
  • Standby Current: 60nA
  • Factory-calibrated
  • Operating Temperature: -40 - 125C
  • Relative Humidity accuracy: +- 3%
  • Temperature Accuracy: +-0.4 deg C
  • Integrated on-chip heater
  • 3x3 mm DFN Package
  • Excellent long term stability
  • Optional factory-installed white PTFE filter which protects the sensor from liquids and particulates
  • Low-profile
  • Default I2C Address: 0x40
  • Compatible with:



  • Vin: 1.9V - 3.6V DC
  • GND: 0V
  • SCL: I2C clock pin (connect to microcontroller's I2C clock pin)
  • SDA: I2C data pin (connect to microcontroller's I2C data pin)


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