• Megatrends

    • Indoor air quality

      The air we breathe is the basis of a healthy life: how to measure and improve it

    • Digital health

      Patient-focused sensor technology is shaping the future of healthcare

    • Autonomous Driving

      Monitoring water ingress to make safe autonomous driving a reality

    • Energy transition

      The energy transition is key to a sustainable future – driven by innovative technologies and smart solutions

  • Applications

      • Smart inhalers
      • Breath analyzers
      • Subcutaneous drug delivery
      • Mechanical ventilators
      • Infusion
      • Anesthesia machines
      • CPAP devices
      • Heart-lung machines
      • Nitric oxide therapy
      • Urine flow measurement
      • Battery energy storage systems
      • Chip mounters
      • Clean cooking
      • Combustion control
      • Front opening unified pods
      • Gas analyzers
      • Gas meters
      • Humidity in oil
      • Photoresist dosing
      • Surface coating/treatment
      • Gas purging
      • Transport of pharmaceutical goods
      • Transport of perishable goods
      • Bioreactors
      • Condition monitoring & instrument diagnostics
      • Custom manifold solutions
      • DNA sequencing
      • Flow cytometry
      • Gas chromatography
      • Liquid chromatography
      • Mass spectrometry
      • Microfluidics
      • Thermal analysis
      • Refrigerators
      • Demand-controlled ventilators
      • Room sensors
      • VAV controllers
      • Filter monitoring
      • Refrigerant leakage detection
      • Air conditioners
      • Air purifiers
      • Thermostats
      • Indoor air quality monitors
      • Smart speakers
      • Air intake
      • Antifogging
      • Brake-by-wire systems
      • Humanoid robots
      • H2 monitoring in fuel cells
      • LiDAR systems
      • Safety of electric vehicles
      • Steer-by-wire systems
  • Products

      • Find your product
      • Humidity
      • Temperature
      • VOCs/NOx
      • Formaldehyde
      • CO₂
      • Particulate matter
      • Refrigerants
      • Liquid flow
      • Differential pressure
      • Gas flow
      • Mass flow controllers
      • Gas metering solutions
      • Gas analyzers
      • Evaluation kits
      • ControlCenter
      • SEK-SensorBridge
      • Humidity/temperature
      • VOCs/NOx
      • Formaldehyde
      • CO₂
      • Particulate matter
      • Liquid flow
      • Differential pressure
      • Gas flow sensors
      • Mass flow controllers
      • Download center
      • Evaluation kits
      • Demonstrators and apps
      • FAQ
      • Support form
      • Distributors
      • GitHub
      • Developer website
      • Distributors' inventory
      • Distributors
      • Representatives
      • Partner access
      • Contact form
      • Customized sensors
      • Development
  • Career

      • Find your dream position
      • Working at Sensirion
      • Our locations
      • Our teams
      • Our entities
      • Top employer
      • Professionals
      • Graduates
      • Students
      • Apprentices
      • News
      • Events
      • Newsletter
      • WhatsApp news
      • Employee stories
    • Contact our P&C Team
  • Company

      • Company profile
      • Locations
      • Contact
      • Sustainability compliance
      • Energy efficency
      • Improving health
      • Ensuring safety and comfort
      • Technology
      • Encouraging innovation
      • Quality and reliability
      • All news
      • Press releases & news
      • Specialist articles
      • Events
      • Webinars
      • Newsletter
      • At a glance
      • Share information
      • Ad-hoc news
      • Financial newsletter
      • Events
      • Results and reports
      • Annual general meeting
      • Corporate governance
      • Sustainability
    • We make the difference in sensing for a better world.

      Future innovations

Directly to

  • Support
  • Product catalog
  • Newsroom
  • Work at Sensirion
  • Technical downloads

Sensirion

  • Developers platform
  • Sensirion Automotive Solutions
  • Qmicro by Sensirion
  • Sensirion Connected Solutions

Contact us

  • General request
  • Support request
  • Newsletter registration

Legal notice© Sensirion AG

STS30-DIS

±0.2°C (0-65°C) Digital temperature sensor

The STS3x is Sensirion’s high-accuracy digital temperature sensor series. The STS3x temperature sensor utilizes the industry-proven CMOSens® Technology and wins over users with its increased intelligence, reliability, NIST traceability and improved accuracy specifications. There are also automotive grade versions available. Every single STS3x is calibrated and 100% end tested. The calibration is performed with a reference sensor which is NIST traceable through an ISO/IEC 17025 accredited laboratory. The functionality of Sensirion’s STS3x temperature sensor includes enhanced signal processing, two distinctive and user-selectable I²C addresses, and communication speeds of up to 1 MHz. The dual-flat no-leads (DFN) package has a footprint of 2.5 × 2.5 mm² while retaining a height of 0.9 mm. This allows for easy integration of the STS3x series into various applications. Additionally, the wide supply voltage range of 2.15 to 5.5 V and low current consumption (1.7µA typical average current at 1 measurement per second) guarantees compatibility with a wide range of applications. The STS3x temperature sensor gives a fully calibrated, linearized, and supply-voltage-compensated digital output and has an outstanding accuracy of up to +/–0.1°C. There are three versions available: the standard version, STS31, guarantees an accuracy of ±0.2°C over a temperature range of 0°C to 90°C, while the low-cost version, STS30, has an temperature range of 0°C to 65°C. The high-end version STS35 is the most accurate temperature sensor available with an accuracy of ±0.1°C over a temperature range of 20 to 60°C. Thanks to Sensirion’s CMOSens® Technology, the STS3x temperature sensor is designed for mass production, comes with a high signal-to-noise ratio and high process capability, and is proven to be highly reliable and stable over the long term.
See inventoryDistributor listContact sales

Specification

Temperature
Typ. temperature accuracy
0.2
0.2°C
Operating temperature range [°C]
-40 - 125
-40 - 125°C
Response time (τ63%)
2
2s
Generic
Supply voltage
2.15 - 5.5
2.15 - 5.5V
Average supply current
1.7
1.7uA
Max. supply current
1500
1500uA
Interfaces
I²C
I²C
Size (LxWxH)
2.5 x 2.5 x 0.9
2.5 x 2.5 x 0.9mm
Packaging size
500(Sampling), 2500, 10000
500(Sampling), 2500, 10000pcs (T&R)

Downloads

Handling instructions STS

06/2025

File

158.0 KB

Application note06/2025PDF158.0 KB
Datasheet STS3x

02/2024

File

893.2 KB

Datasheet02/2024PDF893.2 KB
Design-in guide SHT/STS

04/2024

File

822.1 KB

Guide04/2024PDF822.1 KB
Design-in guide SHT/STS Chinese

06/2024

File

1.2 MB

Guide06/2024PDF1.2 MB
Embedded drivers temperature

Link

SoftwareLink
SEK-ControlCenter (all devices)

Link

SoftwareLink
Calibration certification SHT/STS

08/2021

File

110.4 KB

Certificate08/2021PDF110.4 KB
REACH and RoHS declaration SHT/STS

01/2025

File

109.5 KB

Certificate01/2025PDF109.5 KB
Temperature brochure Japanese

05/2025

File

1.4 MB

Flyer05/2025PDF1.4 MB
Temperature product flyer

10/2024

File

1.1 MB

Flyer10/2024PDF1.1 MB
Temperature product flyer Chinese

03/2025

File

1.2 MB

Flyer03/2025PDF1.2 MB
  • All products
  • Temperature
  • STS3x

Sensor evaluation

Buy the following products to evaluate this sensor

NameDescriptionSeriesCategory
SEK-SensorBridgeConnecting bridge with two sensor portsSEK-SensorBridge
SEK-SHT31Humidity and temperature evaluation kit SHT31SEK-SHTxxHumidity

SEK-SensorBridge

Connecting bridge with two sensor ports

SEK-SensorBridge

SEK-SHT31

Humidity and temperature evaluation kit SHT31

SEK-SHTxx

Humidity

Download the respective viewer software to start measuring

Go to download center

Start testing our sensors fast and easy with the evaluation kits

How to get started

Smart sensors for your application

Sensirion's sensor solutions are used in a wide range of applications and markets. Our reliable environmental and flow sensors improve energy efficiency, increase health and ensure safety and comfort.

  • Home
  • Products
  • Product catalog
  • STS30-DIS

Latest temperature sensors

Explore
Automotive grade ±0.2°C temperature sensor with wettable flanks and I2C 0x45 address output
Upcoming

STS41A-BWLB

Automotive grade ±0.2°C temperature sensor with wettable flanks and I2C 0x45 address output

  • Sensor
  • Temperature
±0.4°C Ultra-low-power temperature sensor
Active

STS4L

±0.4°C Ultra-low-power temperature sensor

  • Sensor
  • Temperature
Automotive grade ±0.2°C temperature sensor with wettable flanks and I2C 0x44 address output
Upcoming

STS41A-AWLB

Automotive grade ±0.2°C temperature sensor with wettable flanks and I2C 0x44 address output

  • Sensor
  • Temperature
Temperature evaluation kit STS40
Active

SEK-STS40-CD1B

Temperature evaluation kit STS40

  • Evaluation kit
  • Temperature
±0.1°C (20-60°C) Digital temperature sensor
Active

STS35-DIS

±0.1°C (20-60°C) Digital temperature sensor

  • Sensor
  • Temperature
±0.3°C Digital automotive-grade temperature sensor
Active

STS31A-DIS

±0.3°C Digital automotive-grade temperature sensor

  • Sensor
  • Temperature
±0.2°C (0-90°C) Digital temperature sensor
Active

STS31-DIS

±0.2°C (0-90°C) Digital temperature sensor

  • Sensor
  • Temperature