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| Brand | Yuhong |
|---|---|
| Model | TH-2001H |
| Detection Principle | Chemiluminescence (CLD) |
| Measurement Parameters | NO, NO₂, NOₓ (calculated) |
| Display | 7-inch capacitive touchscreen |
| Units | ppb, ppm, µg/m³, mg/m³ (user-selectable) |
| Data Logging | Interval-stamped records every 5 minutes |
| Power Supply | Rechargeable Li-ion battery (≥5 h operation) + AC adapter |
| Operating Environment | 0–40 °C, 10–90% RH (non-condensing) |
| Compliance | Designed for field-deployable environmental monitoring per EPA Method 42 & ISO 7935 (principles), GLP-aligned data integrity |
| Gas Path | Dual-stream, time-shared single reaction chamber with catalytic NO₂-to-NO converter |
| Automatic Compensation | Temperature and barometric pressure |
| Connectivity | Remote calibration & diagnostics via embedded communication interface |
| Alarm | Multi-parameter configurable thresholds |
| Brand | Tianhong |
|---|---|
| Origin | Hubei, China |
| Model | TH-2011 Chemiluminescence NOy Analyzer |
| Detection Principle | Gas-phase chemiluminescence (NO + O₃ → NO₂* + O₂) |
| Measured Species | NO, NOz, NOy (via catalytic reduction to NO) |
| Output Interfaces | RS-232, RS-485 |
| Compliance | HJ 654–2013, Q/WYH 01–2013 |
| Operating Mode | Continuous automatic ambient air monitoring |
| Display | Touchscreen with Chinese GUI |
| Design | Modular hardware architecture |
| Data Processing | Digital filtering (MSE-optimized response time & SNR) |
| Brand | Tianhong |
|---|---|
| Model | TH-2001H |
| Detection Principle | Chemiluminescence (CLD) |
| Measurands | NO, NO₂, NOₓ (total) |
| Display | 7-inch full-touch color LCD |
| Concentration Units | ppb, ppm, µg/m³, mg/m³ |
| Data Logging | 1-year storage at 5-minute intervals |
| Sampling System | Dual-path, time-division single-channel |
| Auto-ranging | Yes |
| Temperature & Pressure Compensation | Integrated |
| Remote Diagnostics & Calibration Support | Yes |
| Alarm Functions | Multi-parameter configurable |
| Brand | Tianhong |
|---|---|
| Origin | Hubei, China |
| Model | TH-2021 |
| Detection Principle | Gas Correlation Infrared Absorption |
| Measurement Range | 0–100 ppm (configurable) |
| Output Units | mg/m³, µg/m³, nmol/mol, µmol/mol, ppm, ppb |
| Display | 7-inch capacitive touchscreen |
| Data Logging | 1 year @ 5-min intervals |
| Auto-ranging | Yes |
| Temperature & Pressure Compensation | Integrated |
| Remote Diagnostics & Calibration Support | Yes |
| Filter Wheel | Dual-channel gas-correlation wheel (N₂O/N₂) |
| Compliance | Meets GB/T 15438–2022, HJ 1047–2019, compatible with EPA Method 6C and ISO 14956 for ambient air monitoring |
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