iconI2C-TRH320: Pre-wired I2C Temperature and humidity probe (with filter) for OEM applications
A pre-wired I2C Temperature/Relative Humidity sensor with particle filter, enclosed in a protective mesh.
46.75 $ CAD
(approx. 36.96$ USD )

Product Description:

The I2C-TRH320 is specifically designed for environmental temperature and humidity acquisition. With its factory calibrated, linearized and temperature compensated sensor chip, it is field interchangeable. Thanks to its precision electronics, extremely small variations in temperature and humidity can be acquired.

The sensor communicates using a standard I2C protocol, easing integration with a wide variety of micro-controllers and single-board computers such as the Raspberry pi, Arduino and compatibles.

The compact probe eases integration, even in space-constrained locations, and the built-in particle filter provides protection against dust, soot and other contaminants.

Key specifications:

  • Temperature:
    • Probe operating range:[1] -40°C to 70°C.
    • Accuracy: ±0.3°C (typical, -20°C to 70°C); Max. ±0.4°C.
    • Resolution: 0.015°C (typical)
  • Filter:
    • Material: PTFE membrane
    • Efficiency: >99.99% for particles of 200nm
  • Relative humidity:
    • Probe operating range: 0 to 100 %RH (non-condensing)
    • Typical accuracy (0 to 80°C): ±2% from 0 to 100%RH
    • Minimum accuracy at 25°C: ±2.5% from 0 to 90%RH; ±3.5% (90-100%RH)
    • Resolution: 0.01 %RH (typical)


  • Supply: 3.0 to 5.5 volts
  • Connection: 4 wires
  • Sensor housing: Black flexible PET mesh
  • Cable: PVC, 3 ft
  • Communication protocol: I2C interface, up to 1MHz.
  • I2C Address: 0x44
  • Software: Example C and python code for Linux /dev/i2c available (for Raspberry Pi and other single board computers running Linux)
[1] Only if the cable is not moved/flexed while the temperature is below 0°C

Picture Gallery:




Sensor side


Wiring side


Sensor tip (internals)


Temperature accuracy


%RH accuracy

Ships within 3 business days (*)
Item #DescriptionPriceAvailabilityAdd to cartcart
I2C-TRH320 Pre-wired I2C Temperature and humidity probe (with filter) for OEM applications $46.75 In stock
Note: Prices are in canadian dollars (CAD) and may change without prior notice. If necessary, currency conversion will be done automatically by PayPal.

*: Orders are normally prepared and shipped within 3 business days. The transit time varies according to the country of destination, but between 4 and 10 business days are typical. Business days are Monday to Friday, with the exception of holidays (Canadian or in the distination country).

Download(s) & Link(s):
C and Python examples for Linuxsht3x_examples.tar.gz
SHT3x sensor datasheetsht31_datasheet.pdf

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