Gravity: STCC4 CO2 Sensor

Product Overview

The Gravity STCC4 CO2 Sensor is built around the Sensirion STCC4 chip. Using thermal conductivity principles, the sensor directly measures CO2 concentration instead of estimating eCO2 from other gases, significantly improving measurement reliability.

An onboard Sensirion SHT40 temperature and humidity sensor provides temperature and humidity compensation; temperature, humidity and CO2 readings can be obtained from the same module.

This sensor is well suited for projects with limited space and for environmental monitoring applications.

Note: Do not expose the yellow breathable membrane on the STCC4 chip to organic solvents or damage it with sharp objects.

Features

• Direct measurement of CO2 concentration (not estimated eCO2)
• Onboard temperature and humidity compensation
• Selectable I2C address: 0x64 / 0x65
• Perforated PCB around the sensor to prevent heat from nearby components affecting the STCC4 thermal conductivity measurements

Specifications

• Supply voltage: 3.3–5 V
• Operating temperature:
• Operating humidity:
• Operating current:
• Measurement range: 400–5000 ppm
• Accuracy: ±100 ppm ±10% m.v. (within 400–5000 ppm)
• Response time: 20 s

Specifications

• Supply voltage: 3.3–5 V
• Operating temperature:
• Operating humidity:
• Operating current:
• Measurement range: 400–5000 ppm
• Accuracy: ±100 ppm ±10% m.v. (within 400–5000 ppm)
• Response time: 20 s

Pinout