A
Anonymous
Apr 09, 2026
Rating: 4/5
Solid performance
Documentation could be clearer on pinout, but the sensor itself works great once connected.
Description
SC8 High-Precision NDIR Infrared CO2 Sensor Module Digital Gas Detection Transmitter
Reviews
Attributes
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Detection Technology | NDIR (Non-Dispersive Infrared) |
| CO2 Measurement Range | 400 - 5000 ppm |
| Accuracy | ±50 ppm ±5% reading |
| Communication Interface | UART TTL / PWM |
| Supply Voltage | 5.0 ± 0.2 V DC |
| Average Current | < 60 mA |
| Response Time | < 120 Seconds |
| Operating Temperature | -10°C to 50°C |
| Operating Humidity | 0% to 95% RH (Non-condensing) |
| Sensor Lifespan | > 10 Years |
5 reviews
A
Anonymous
Mar 31, 2026
Rating: 5/5
Great for greenhouse monitoring
Helps me manage airflow in my greenhouse effectively. Very reliable over the past 3 months of use.
A
Anonymous
Mar 10, 2026
Rating: 5/5
Accurate and compact
Compared it against a calibrated meter. The accuracy is impressive for the size and price point.
A
Anonymous
Mar 03, 2026
Rating: 5/5
Perfect for HVAC projects
Integrated smoothly into my ventilation controller. Readings are stable and consistent over time.
A
Anonymous
Feb 26, 2026
Rating: 4/5
Good sensor, needs warm-up
Works well with Arduino. Just remember to let it warm up for 3 minutes before taking accurate readings.
5 FAQ
Q: Is 3.3V logic supported?
A: The UART interface is 5V TTL. Please use a level converter for 3.3V MCUs.
Q: Is it suitable for outdoor use?
A: It is designed for indoor use. Exposure to rain or dust may damage the module.
Q: Can this detect carbon monoxide?
A: No, this module is specific to Carbon Dioxide (CO2) only.
Q: What is the baud rate for UART?
A: The default UART baud rate is 9600 bps.
Q: Does this require manual calibration?
A: It features automatic baseline calibration (ABC) logic for typical indoor applications.
