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Datasheet – STC31-C

Smart CO2 sensor based on thermal conductivity

Highlights

•

Digital and calibrated output of gas

concentration and temperature

•

Long-term stable measurement

•

Low power

•

Low-cross-sensitivity to humidity and oxygen

concentration changes

The STC31-C sensor is a thermal conductivity gas concentration sensor designed for high-volume applications.

The STC31-C utilizes a revolutionary thermal conductivity measurement principle, which results in superior

repeatability and long-term stability.

The outstanding performance of these sensors is based on Sensirion’s patented CMOSens® sensor technology,

which combines the sensor element, signal processing and digital calibration on a small CMOS chip. The well-

proven CMOS technology is perfectly suited for high-quality mass production and is the ideal choice for

demanding and cost-sensitive OEM applications.

With the introduction of the STC31-C as successor of the STC31, the low-cross-sensitivity measurement mode

has been introduced. It provides low-cross-sensitivity to humidity and oxygen concentration changes.

The STC31-C is fully backward compatible to the STC31. See notice at the end of the document.

Device Overview

Product

Details

STC31-C

SMD Component on Reel

Evalkit

STC31-C + SHT40 on Flex PCB

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