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  • All products
  • Temperature
  • STS4x

STS4L

±0.4°C Ultra-low-power temperature sensor

The STS4L is a fully digital, highly cost-effective temperature sensor that provides the accuracy required for most applications. It features enhanced signal processing, three distinctive I²C addresses and communication speeds of up to 1 MHz. With a footprint of just 1.5 × 1.5 x 0.5 mm, it is easy to integrate into a variety of applications, and its wide supply voltage range and low power consumption enable battery-powered designs. The STS4L is designed for mass production, has a high signal-to-noise ratio and high process capability, and has a proven record of long-term reliability and stability.

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Specification

Temperature
Typ. temperature accuracy
0.4
0.4°C
Operating temperature range [°C]
-40 - 125
-40 - 125°C
Response time (τ63%)
2
2s
Generic
Supply voltage
1.08 - 3.6
1.08 - 3.6V
Average supply current
0.4
0.4uA
Interfaces
I²C
I²C
Size (LxWxH)
1.5 x 1.5 x 0.55
1.5 x 1.5 x 0.55mm
Packaging size
10'000
10'000pcs (T&R)

Downloads

Handling instructions STS

06/2025

File

158.0 KB

Application note06/2025PDF158.0 KB
Datasheet STS4x

02/2025

File

570.7 KB

Datasheet02/2025PDF570.7 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
Arduino driver I2C STS4x

Link

SoftwareLink
Embedded drivers temperature

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

Sensor evaluation

Buy the following products to evaluate this sensor

NameDescriptionSeriesCategory
SEK-SensorBridgeConnecting bridge with two sensor portsSEK-SensorBridge
SEK-STS40-CD1BTemperature evaluation kit STS40SEK-STS4xTemperature

SEK-SensorBridge

Connecting bridge with two sensor ports

SEK-SensorBridge

SEK-STS40-CD1B

Temperature evaluation kit STS40

SEK-STS4x

Temperature

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.

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STS4L

STS4L-AD1B-R3

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Global Distributors

Part numberQuantityDistributor nameCountryUploaded
STS4L-AD1B-R310256Mouser Electronics Inc.27 countries03.10.2025Buy
STS4L-AD1B-R38692Farnell, An Avnet Company10 countries03.10.2025Buy
STS4L-AD1B-R32982DigiKeyUS, HK, DE03.10.2025Buy

EMEA (Europe)

Part numberQuantityDistributor nameCountryUploaded
STS4L-AD1B-R39985SOS electronic s.r.o.DE, PL, CZ, HU, SK03.10.2025Buy

APAC (Asia)

Part numberQuantityDistributor nameCountryUploaded
STS4L-AD1B-R38692element14SG03.10.2025Buy

The Americas

Part numberQuantityDistributor nameCountryUploaded
STS4L-AD1B-R310000Arrow ElectronicsUS03.10.2025Buy