Gravity: UART Infrared Carbon Dioxide Sensor (0-50000 ppm)

DFRobot released its latest wide range Arduino infrared CO2 sensor, which effective range is up to 0~50000ppm. This sensor is based on non-dispersive infrared (NDIR) technology and has good selectivity and oxygen-free dependency. It integrates temperature compensation and support UART communication mode. Most importantly, the product is easy to use; it is compatible with all types of microcontrollers with UART port, like Arduino, Raspberry Pi and other microcontrollers. Besides, it has a long service life, up to 5 years!

In addition, this UART Infrared CO2 Sensor is a high-performance sensor that combines technology of mature infrared absorption gas detection with precision optical circuit design as well as sophisticated circuit design. It has characteristics such as wide range detection, high sensitivity, high resolution, low power consumption, fast response, anti-water vapor interference, no poisoning, high stability and long life.

It can be widely used in HVAC refrigeration and indoor air quality monitoring, industrial process and safety monitoring, agricultural and animal husbandry production process monitoring, etc..

This is a 0~50000ppm wide-range CO2 sensor with UART communication port. It supports Arduino, Raspberry Pi, and other microcontrollers. In addition, we also have a 0~5000 ppm high precision infrared sensor with Gravity Analog interface, more easy to use: Gravity Analog Infrared CO2 Sensor (0~5000ppm).

Gravity CO2 Sensor Selection Guide
Product Name	Gravity: Analog Electrochemistry CO2 Sensor	Gravity: Analog IR CO2 Sensor	Gravity: UART IR CO2 Sensor	Gravity: I2C SCD41 Infrared CO2 Sensor (400 - 5000 ppm)
SKU	SEN0159	SEN0219	SEN0220	SEN0536
Operation Voltage	3.7～5V	4.5～5.5V	4.5～5.5V	3.3V-5V
Output	Gravity: Analog (Analog2.7～4.1V) + 3P Header Digital Output(Alarm):0～VCC Level	Gravity: Analog (Analog Output 0.4～2V)	Gravity: UART (0～3.3V Level)	Gravity: I2C
Measurement Principle	Electrochemistry （Solid electrolyte battery principle）	NDIR (non-dispersive infrared)	NDIR (non-dispersive infrared)	photoacoustic NDIR
Measurement Range	0～10000 ppm	400～5000 ppm	0～50000 ppm	400～5000ppm
Accuracy	±100ppm@400ppm	±(100ppm + 6% readings)	±(100ppm + 6% readings)	±(40 ppm + 5% MV)
Response Time	<20s	<90s	<30s	60S
Average Power	<1W	<430mW@5V	<430mW@5V	<30mW@5V
Operation Temperature	-20℃～50℃	0℃～50℃	0℃～50℃	-10℃～60℃
Operation Humidity	0～95% RH (No condensation)	0～95% RH (No condensation)	0～95% RH (No condensation)	0～95% RH (No condensation)
Lifespan	>1 year	>5 years	>5 years	>10 years
Dimension (PCB)	32*42 mm	37*69 mm	21*27.1 mm	32*27*8mm
Features	1. Large Range 2. Adjustable Alarm Threshold 3. Fast Response 4. Analog Output	1. High Accuracy 2. Long Lifespan 3. Auto Temperature Compensation 4. Water Vapor Interference Resistance 5. Ananglog Output	1. High Accuracy 2. Large Range 3. Long Lifespan 4. Auto Temperature Compensation 5. Water Vapor Interference Resistance 6.3.3V UART Output	1.CO2, temperature, and humidity, three in one 2. Small size of 32*27*8mm 3. Low power, average current＜4mA