CO2 Sensor

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IR CO2 Sensor Module, 400-2000ppm to 400-10000ppm

SUCH-CO2-Z19C
● 400-2000ppm to 400-10000ppm ● Serial (UART) (TTL level 3.3V), PWM ● Pin-type, terminal-type optional ● 1 ppm resolution
$104.56

NDIR CO2 Sensor Module, 400-500ppm, 400-1000ppm

SUCH-CO2-V1512A
● 400-500ppm, 400-1000ppm ● Serial (UART) (TTL level 3.3V), PWM ● ±50 ppm+5% of reading ● 1ppm resolution
$98.69

NDIR Carbon Dioxide (CO2) Sensor, 0 to 2000ppm/0-6000ppm

SUCH-CO2-NDIR
● 0-2000ppm/0-6000ppm ● Non-dispersive Infrared Absorption ● UART (Modbus), AC (0.4V ~ 2V) ● 1 ppm resolution
$208.30

Industrial Infrared CO2 Sensor, UART, 0-2000ppm to 0-100% Vol

SUCH-CO2-411D
● 0-2000ppm to 0-100% Vol ● UART, 0.4 ~ 2 V ● Temperature compensation ● IP54 protection level
$345.08

Carbon Dioxide (CO2) Sensor for Home, 400-5000ppm

SUCH-CO2-NMCO2
● 400-5000ppm ● UART/PWM ● 3.3V interface voltage ● 1ppm resolution
$95.74

CO2 Flow Sensor, 0-30sccm/0-500sccm to 0-1000sccm

SUCH-CO2-F1012
● 0-30sccm/0-500sccm to 0-1000sccm ● 200Ω output resistance ● 200kPa pressure resistance ● 0 ~ 50°C operating temp
$149.13

IR CO2 Transmitter with Display, 0-2000/5000/10000ppm

SUCH-CO2-3002
● 0-2000/5000/10000ppm ● With display screen ● RS485 output signal ● 1ppm CO resolution
$146.32

Infrared CO2 Sensor, 0-5000ppm, TTL/RS485

SUCH-CO2-4NCO2
● 0-5000ppm rang ● TTL/RS485 module output ● Temperature compensation ● IP54 protection level
$328.68

CO2 Sensor Probe, 0-10000ppm

SUCH-CO2-MG812
● 0-10000 ppm CO₂ ● Metal shell package ● Heating voltage 5.0 ± 0.1 V ● Output signal EMF
$65.29

Thermal Conductivity CO2 Sensor, 0-100%Vol

SUCH-CO2-MD62
● 0-100%Vol ● Exd IIB I explosion-proof ● 3.0 ± 0.1 VDC working voltage ● -40°C ~ +70°C, humidity ≤ 95% RH
$102.21

CO2 Concentration Sensor, 0-10000ppm

SUCH-CO2-MG811
● 0~10000ppm CO2 ● 6.0 ± 0.1V heating voltage ● 35.0 ± 3.0Ω heating resistance ● Plastic-sealed metal case
$86.97

Waterproof CO2 Sensor, 400-5000ppm, UART Output

SUCH-CO2-FS00302
● 400-5000ppm CO2 ● UART (3.3V TTL level) output ● 1 ppm min resolution ● Gold-plated chamber design
$83.09

CO2 Air Quality Sensor, 400-5000ppm, RS485 Output

SUCH-CO2-FS00820B
● 400-5000ppm CO2 ● Modbus-RS485 output ● 1 ppm CO₂ resolution ● DC 10V-0V working voltage
$188.54

Carbon dioxide (CO₂) sensors are a type of smart environmental monitoring device used to detect CO₂ concentrations in the air. They are widely applied in indoor air quality monitoring, smart homes, fresh air systems, greenhouse agriculture, school buildings, office spaces, livestock farming, storage environments, and industrial production process control. CO₂ concentration is closely related to air quality, ventilation conditions, and indoor comfort levels. Therefore, high-precision CO₂ sensors have become a core component of modern air management systems.

This CO₂ sensor catalog features diverse products including NDIR non-dispersive infrared CO₂ sensor modules, CO₂ air quality sensors, waterproof CO₂ sensors, CO₂ flow sensors, and CO₂ sensor probes. NDIR sensing technology offers advantages such as extended lifespan, strong anti-interference capability, measurement stability, and low zero drift, making it suitable for long-term continuous monitoring. Select models support measurement ranges including 0–2000ppm, 0–5000ppm, and 0–10000ppm, with diverse output options such as RS485, Modbus, 4–20mA, UART, and PWM. This facilitates seamless integration with building automation systems, fresh air controllers, or environmental monitoring platforms.

Each CO₂ sensor features rapid response, automatic temperature compensation, high-precision algorithms, and low power consumption, making them suitable for diverse public environments and industrial applications. For smart management needs, models supporting data logging and interlocking control enable automated environmental regulation and remote monitoring. Agricultural greenhouses and livestock farms can also optimize growth environments through CO₂ sensors. Such Sensor Shop offers a comprehensive range of environmental monitoring sensors, providing reliable equipment and complete solutions for building automation, agricultural, and industrial automation sectors. Whether for project support or large-scale integration applications, we deliver consistent product quality and professional after-sales service.