Single-channel Infrared CO₂ Sensor KGD - CM - 102
Product Introduction
The single-channel infrared CO₂ sensor KGD - CM - 102 is a single-channel NDIR sensor. Having been tested in the market for many years, it has always won the favor of customers with its stable performance, high cost-effectiveness, and reliable and worry-free features.

Product Features
Technical Parameters
| Detection Range | 400 - 5000ppm (can be extended to 10000ppm, and the range is optional) |
| Power-on Stabilization Time | ≤ 30s |
| Data Refresh Frequency | 1s |
| Detection Accuracy | For residential use: ±(50ppm + 5% of the reading) For commercial use (ventilation control, energy consumption reduction): ±(50ppm + 3% of the reading) For safety and metering use: ±(30ppm + 3% of the reading)" |
| Operating Conditions | -10°C to 50°C, below 0 - 95%RH (non-condensing) |
| Storage Conditions | -30°C to 70°C, below 0 - 95%RH (non-condensing) |
| Operating Voltage | DC 5V±0.1V |
| Average Operating Current | <45mA@(5V) |
| Signal Output | ① UART_TTL ② IIC ③ PWM |
| Product Dimensions | W33H19.7D9.4(mm) (excluding pins) |