YJJ GR-S/CO2 GR-S CO2 NDIR Infrared Carbon Dioxide Sensor Module Low-Cost CO2 Monitoring Industrial Applications

Product Description:

YJJ GR-S/CO2 GR-S CO2 NDIR Infrared Carbon Dioxide Sensor Module Low-Cost CO2 Monitoring Industrial Applications

Features:

I. Core Parameters (Standard Specifications) Table

Parameter item Typical value Explanation

Detected gas CO₂ (carbon dioxide) Unique specific detection

Detection principle NDIR non-dispersive infrared 4.26μm characteristic absorption, long lifespan, non-poisonous Zhengzhou Weisheng Electronic Technology Co., Ltd.

Measurement range 0 - 5000 ppm Covers indoor / agricultural / industrial common scenarios

Accuracy ±(50 ppm + 3% FS) at 25℃ standard condition

Resolution 1 ppm Digital output

Response time (T90) ≤ 60 seconds Common infrared detection speed

Preheating time ~ 3 minutes Precise after light source stabilizes

Working voltage DC 5V Single power supply

Power consumption average < 60 mA Peak approximately 150 mA

Output interface UART (TTL) / PWM Common 9600 baud rate, easy to connect to microcontroller

Operating temperature 0 - 50℃ Suitable for indoor / industrial environments

Operating humidity 0 - 95% RH (no condensation) Resistant to water vapor interference

Life > 5 years Advantages of NDIR: No consumables, long lifespan Zhengzhou Weisheng Electronic Technology Co., Ltd.

Size approximately 32×22×10 mm Small PCB module

II. Working principle

NDIR infrared absorption: Light source → gas chamber → filter → detector. CO₂ absorbs 4.26μm infrared light, light intensity attenuation is proportional to concentration Zhengzhou Weisheng Electronic Technology Co., Ltd.

Built-in temperature compensation: Automatically corrects temperature drift, long-term stability.

Digital output: Built-in MCU processing, outputs concentration value (ppm).

III. Main applications

Location: General CO₂ monitoring, cost-effective choice

Indoor air quality (IAQ)

Household / vehicle CO₂ detector

Risk control for offices, schools, shopping malls

Smart home, fresh air system, air conditioning linkage Intelligent Agriculture

Greenhouse CO₂ fertilization control

Monitoring of cultivation environment for edible fungi and flowers

Industry and safety

CO₂ monitoring in factories, warehouses, and underground garages

Cold chain, livestock breeding, fermentation process

Equipment integration

Portable detectors, environmental monitoring nodes

HVAC, air purifiers, multi-in合一 IAQ equipment

Specifications: