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Product Details
Product Introduction
HW-HW200A is a portable non-dispersive infrared (NDIR) carbon dioxide analyzer manufactured by HM Instruments for indoor air quality (IAQ) testing, educational facility screening, and public sanitation inspections. The analyzer measures carbon dioxide across 0 to 0.500% (0 to 5,000 ppm) with an ultra-fine resolution of 0.0001% (1 ppm). By deploying advanced optical filtering, HW-HW200A delivers fast response times (≤60s), extended sensor operational lifespan, and high immunity to cross-interferences. The instrument runs an Android operating system displayed on a bright 7-inch capacitive touchscreen, allowing operators to review real-time concentration graphs and toggle automatically between ppm, mg/m³, and percentage. The unit is equipped with an internal suction sampling pump, thermostatic chamber heating for reliable operation down to -20°C, and an integrated thermal printer. Compliant with JJG 635-2011 and GB/T 18204.2-2014, HW-HW200A serves as an essential tool for indoor environmental hygiene. Review technical details on the HW-HW200A indoor air CO2 analyzer specification sheet.
Applications
Indoor air quality (IAQ) and ventilation assessment in schools, hospitals, office complexes, and public facilities.
Modern agricultural greenhouse atmospheric regulation and elevated carbon dioxide plant growth monitoring.
Animal husbandry barns and poultry farming facilities ensuring proper climate and ventilation safety.
Industrial bio-fermentation processes, brewery gas production, and anaerobic digestion monitoring.
Confined workspace safety screening, underground utility vaults, and cold-chain refrigerated warehouse inspection.
Functional Performance
Optimized 0–0.500% (0–5,000 ppm) CO2 measurement range dedicated to indoor air quality compliance.
High-sensitivity NDIR optical sensor providing 0.0001% (1 ppm) resolution and prompt 60s response.
Built-in suction sampling pump with dynamic real-time digital flow tracking.
Android-powered 7-inch capacitive color touchscreen with interactive graphing and user settings.
Wide operating temperature span from -20°C to 60°C supported by internal constant-temperature heating.
Automatic zero-point self-calibration supported by solenoid-driven gas channel switching.
Integrated temperature and relative humidity sensors with automatic mathematical compensation.
Onboard thermal micro-printer issuing instantaneous physical test vouchers on site.
Internal non-volatile data memory holding over 100,000 dated inspection records.
Automatic unit conversion across ppm, mg/m³, and volumetric percentage metrics.
Built-in Wi-Fi cloud data transmission (optional 4G module) and direct USB flash drive export.
Main Parameters
| Parameter | Specification |
|---|---|
| Detection Principle | Non-dispersive infrared (NDIR) spectrometry |
| Target Gas | Air containing Carbon Dioxide (CO2) |
| Measurement Range | 0~0.500% (0~5000 ppm) |
| Resolution | 0.0001% (1 ppm) |
| Linearity Error | ≤ ±2% F·S |
| Repeatability | ≤ 1.0% |
Technical Parameters
| Parameter | Specification |
|---|---|
| Product Model | HW-HW200A |
| Detection Principle | Non-dispersive infrared (NDIR) spectrometry |
| Target Gas | Air containing Carbon Dioxide (CO2) |
| Sampling Method | Built-in precision suction pump |
| Measurement Range | 0~0.500% (0~5000 ppm) |
| Resolution | 0.0001% (1 ppm) |
| Operating Temperature Range | -20~60℃ |
| Operating Humidity Range | 0–95% RH (non-condensing) |
| Concentration Display | Automatic unit conversion across ppm, mg/m³, and % |
| Display Screen | 7-inch capacitive color touchscreen (Android OS) |
| Data Storage Capacity | > 100,000 complete measurement datasets |
| Zero Calibration | Automated zero point calibration (Nitrogen and Catalytic zeroing) |
| Linearity Error | ≤ ±2% F·S |
| Repeatability | ≤ 1.0% |
| Span Drift | ≤ ±2% F·S / 3h |
| Zero Drift | ≤ ±1% F·S / h |
| Carbon Dioxide Removal / Interference | / |
| Response Time | ≤60 s |
| Preheating Time | 5 min |
| Sampling Flow Rate | (0.5–2.0) L/min (digital flow tracking) |
| Data Output Interface | USB direct export to flash drive; Wi-Fi platform sync |
| Printer Configuration | Integrated micro-thermal printer with QR code printing |
| Alarm Function | Audible buzzer and visual flashing alarm |
| Power Supply | Built-in rechargeable lithium battery, AC/DC dual use (110–240 V AC / internal DC) |
| Instrument Dimensions | 257.3 × 147 × 300 mm |
| Package Dimensions & Weight | 10 kg (External: 257.3×147×300 mm, Package: 460×265×420 mm) |
Expert Review
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