- Stock: In Stock
- Model: T741.ACD1100
ACD1100 Infrared CO₂ Sensor
The ACD1100 CO₂ Sensor from Asair is a compact and reliable infrared sensor designed for accurate carbon dioxide (CO₂) measurement in indoor environments. Utilizing non-dispersive infrared (NDIR) technology, the ACD1100 delivers stable and consistent readings, making it ideal for air quality monitoring, HVAC systems, smart home devices, and industrial applications.Its 5V power supply, low power consumption, and dual communication options (I²C and UART) ensure compatibility with a wide range of microcontrollers and development platforms such as Arduino and Raspberry Pi. With a long lifespan of over 5 years and quick data updates every 2 seconds, it is perfect for continuous real-time monitoring.
📦 Features
- High accuracy CO₂ detection (±50ppm + 5% of reading)
- Wide measurement range: 400–5000 ppm
- Dual interface: I²C and UART
- Fast response time with data refresh every 2 seconds
- Compact size with easy mounting
Ideal for air quality monitoring, smart home, and industrial use
📊 Technical Specifications
| Parameter | Value |
|---|---|
| Model | ACD1100 |
| Detection Range | 400 – 5000 ppm |
| Accuracy | ±(50 ppm + 5% of reading) |
| Power Supply | 4.75 – 5.25V |
| Average Current | < 45 mA |
| Typical Power | 100 mW @ 5V |
| Warm-up Time | 120 seconds |
| Output Interfaces | I²C / UART |
| Data Update Interval | Every 2 seconds |
| Operating Temperature | 0 – 50°C |
| Operating Humidity | 0 – 95% RH (non-condensing) |
| Storage Temperature | -20 – 60°C |
| Storage Humidity | 0 – 95% RH (non-condensing) |
| Expected Lifespan | > 5 years |
🔌 Pin Definitions
| Pin Number | Name | Description |
|---|---|---|
| Pin 1 | SDA / RX | Data input (I²C or UART) |
| Pin 2 | SCL / TX | Data output (I²C or UART) |
| Pin 3 | GND | Ground |
| Pin 4 | VCC | Power supply (5V) |
| Pin 5 | SET | Communication mode selection |
📐 Dimensions (mm)
- Width: 33 mm
- Height: 22 mm
- Thickness: 14.5 mm
- Mounting hole spacing: 28 mm
- Infrared sensor diameter: 9.9 mm
