Overview
The H101-CO2-Z8S-U-40kP CO2 gas sensor, hereinafter referred to as the PAS sensor, is a compact sensor with a wide measurement range. Employing the photoacoustic principle, it effectively detects CO2 in the air. The sensor features excellent selectivity, operates independently of oxygen, and has an extended lifespan. With built-in temperature and humidity compensation, it offers enhanced usability. The PAS sensor represents a high-performance design, integrating photoacoustic spectroscopy detection technology with sophisticated circuit design and advanced algorithms. Its dimensions measure 20x15x7.8mm, making it suitable for space – constrained applications.
Key Features
- Wide Range: Offers a measurement range of 400 – 5000 ppm, extendable up to 40000 ppm.
- High Sensitivity: Capable of detecting even minute changes in CO2 concentrations.
- Stability: Demonstrates excellent long – term stability.
- Compensation and Output: Features temperature and humidity compensation, ensuring a linear output.
- Output Interface: Provides a UART (TTL 3.3V) output interface for easy integration.
- Long Lifespan: Has a lifespan of over 10 years.
- Resistance: Resistant to water vapor interference and immune to poisoning.
Applications
- Automotive Air Conditioning Systems: Enables precise control of cabin air quality by monitoring CO2 levels.
- Air Purification Devices: Facilitates efficient purification by detecting CO2 concentrations and triggering purification mechanisms.
- Air Quality Monitoring Equipment: Plays a crucial role in providing accurate CO2 data for comprehensive air quality assessment.
- Smart Homes: Allows for intelligent control of home environments based on CO2 levels, enhancing comfort.
- Fresh Air Systems: Helps regulate the intake of fresh air by sensing indoor CO2 levels.
Technical Specifications
| Parameter | Details |
| Model | H101-CO2-Z8S-U-40kP |
| Detection Gas | CO2 |
| Supply Voltage | Light source: (5.0±0.05) V; System: (3.3±0.3) V |
| Average Current | <15 mA (@5 V); <2 mA (@3.3 V) |
| Peak Current | 300 mA (@5 V) |
| Interface Level | 3.3 V |
| Measurement Range | 400 – 5000 ppm (expandable to 40000 ppm) |
| Output Signal | UART (TTL 3.3 V) |
| Warm-up Time | 60 s |
| Response Time T63% | < 60 s |
| Operating Temperature | -10~60 °C |
| Pressure Range | 750~1150 hPa |
| Operating Humidity | 0~95%RH (non – condensing) |
| Storage Temperature | 5~40 °C |
| Lifespan | >10 years |
| Accuracy (400 – 2000 ppm) | Resolution: 10 ppm; Accuracy: ±(50 ppm + 3% reading) |
| Accuracy (2001 – 5000 ppm) | Accuracy: ±(40 ppm + 3% reading) |
