Fermion: SHT40 Temperature & Humidity Sensor

SKU: SEN0428

The SHT40 (part of SHT4X series) is Sensirion’s 4th-gen digital temperature and humidity sensor, offering high accuracy. It measures humidity 0–100%RH (±1.8%RH) and temperature -40°C to 125°C (±0.2°C). An internal heater works in extreme conditions like condensation. With 3.3–5V supply and <0.15mA low-power consumption, it suits mobile/wireless battery apps and IoT use cases (urban monitoring, smart buildings, industrial automation, smart home).

Overhead shot of SHT40 temperature & humidity sensor module with multiple pins and central chip.-DFRobot product sku:SEN0428 image.
  • Docs
  • Tech Specs
  • Specification

    Parameter Specification
    Operating Voltage 3.3V-5V
    Operating Current 0.45mA
    Communication Interface I2C
    Response Time 8s (tau63%)
    Humidity Measurement Range 0~100%RH
    Humidity Measurement Accuracy ±1.8%
    Temperature Measurement Range -40~+125℃ (-40 to +275℉)
    Temperature Measurement Accuracy ±0.2℃
    Dimension 14×17mm/0.55×0.67”
    Mounting Hole Size M2 (2mm)
    Mounting Hole Pitch 10mm

    Pinout

    Board Overview

    NO. Silkscreen Function
    1 VCC Positive Pole
    2 GND Negative Pole
    3 SCL I2C ClockLine
    4 SDA I2C Data Line

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