STC31-C
STC31-C is gas sensor manufactured by Sensirion.
- 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 bines the sensor element, signal processing and digital calibration on a small CMOS chip. The wellproven 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 patible to the STC31. See notice at the end of the document.
Device Overview
Product STC31-C Evalkit
Details SMD ponent on Reel STC31-C + SHT40 on Flex PCB
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Version 3.2
- September 2024
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Contents
1 Measurement specifications........................................................................................................................................................... 3 1.1 Concentration of CO2 in Air or N2 ..................................................................................................................................... 3 1.2 Low-noise measurement mode specifications ............................................................................................................. 4
2 Sensor specifications ...........................
