Sensirion – SHT3x Series Digital and Analog Humidity and Temperature Sensors

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The versatile SHT3x series consists of a group of humidity and temperature sensors with multiple accuracy levels and features. The 3x series delivers impressive performance and is the ideal solution for a wide range of demanding sensing applications.

SHT3x includes a user programmable alert function, where the sensor can be used as a humidity and temperature guard. Additionally, Sensirion’s latest innovation contains their world premiere, analog ratiometric voltage output. The SHT3x series combines multiple functions and various interfaces (I2C, voltage out) with a user-friendly, wide operating voltage range (2.4V to 5.5V). In addition, the technology enables a small footprint of 2.5 x 2.5mm with
a height of 0.9mm.

Like all sensors from Sensirion, the SHT3x is based on the unique CMOSens® Technology, which allows a high production volume at an exceptional price/performance ratio. Sensirion has once again launched one of the smallest
and most versatile humidity sensors for multiple market applications.

The SHT3x Series of Humidity and Temperature Sensors

SHT30 – low cost version, ±3% RH accuracy
SHT31 – standard version, ±2% RH accuracy
• SHT35 – available Q2 2016

The STS3x Series of Temperature Sensors
• STS3x – available Q2 2016


  • Size: 2.5 x 2.5 x 0.9mm
  • Output: I²C, voltage out
  • Supply voltage range: 2.4V to 5.5V
  • Energy consumption: 4.8µW
  • RH operating range: 0% to 100% RH
  • Temperature operating range: -40°C to +125°C (-40°F to +257°F)
  • RH response time: 8 sec (tau63%)
  • Programmable alert function


  • Appliance
  • Automotive
  • Building technology
  • Consumer electronics
  • Internet of Things (IoT)/wearables
  • Medical
  • Industrial automation