Gravity: I2C SCD41 Infrared CO2 Sensor (400 - 5000 ppm)

SKU: SEN0536 Brand: DFRobot

The Gravity: SCD41 Infrared CO2 Sensor based on Sensirion SCD41 sensor is a CO2, temperature and humidity three-in-one sensor....

$104.95 AUD, inc GST

$95.41 AUD, exc GST

Available with a lead time
Expect dispatch between Dec 30 and Jan 03

Quantity Discounts:

5-10 $91.59 (exc GST)
10+ $88.73 (exc GST)

CO2 is a key factor for indoor air quality as high levels compromise human cognitive performance and well-being.

This Gravity: SCD41 CO2 sensor is based on the SCD41 miniature CO2 sensor from Sensirion. SCD41 builds on the photoacoustic NDIR sensing principle and Sensirion’s patented PAsens® and CMOSens® technology to offer high accuracy at an unmatched price and the smallest form factor. On-chip signal compensation is realized with the built-in temperature and humidity sensor, while temperature and humidity data outputs are also available.

SCD41 sensor detects the amount of energy that is absorbed by CO2 molecules. When pulsing the infrared emitter, CO2 molecules absorb infrared light periodically. This causes additional molecular vibration resulting in a pressure wave inside the measurement chamber. The higher the CO2 concentration, the more light is absorbed, and thus the greater the amplitude of this acoustic wave becomes. A microphone inside the gas chamber measures this, from which the CO2 concentration can then be calculated.

Click to learn more about PAsens® technology.

Click to learn more about NDIR sensors.

Gravity: SCD41 Infrared CO2 Sensor - I2C

Features

CO2, temperature, and humidity, three in one
Small size of 32*27*8mm
Low power, average current<4mA

Applications

Indoor CO2 concentration monitoring
Ambient monitoring in greenhouse
Smart ventilation systems

Specification

Power Supply: 3.3V to 5V
Average Operating Current: <4mA
I2C Address: 0x62
Product Size: 32*27*8mm/1.26×1.06×0.31"

CO2

Accuracy: ±(40 ppm + 5% MV)
Measuring Range: 400 - 5000 ppm
Response Time: 60s

Humidity

Typical Relative Humidity Accuracy: 6%RH
Relative Humidity Measuring Range: 0 to 95%RH
Response Time: 120s

Temperature

Typical Temperature Accuracy: 0.8°C
Temperature Measuring Range: -10 to 60°C
Response Time: 120s

Documents

Parts List

Gravity: SCD41 Infrared CO2 Sensor x1
Gravity-4P I2C/UART Sensor Cable x1

This product is listed in:

Sensors>Weather>Other
Sensors>Gas & Smoke

Product Comments

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Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia

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