Haze Monitoring System
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| Origin | Beijing, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (PRC) |
| Model | GHX-1000 |
| Rental Rate | USD 2,800/month (excl. tax & shipping) |
| Compliance | CE-marked modules, NIST-traceable calibration options available |
| Software | Cloud-based remote monitoring dashboard with real-time data streaming and audit-log export |
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | APS-3321 |
| Pricing | Available Upon Request |
| Brand | TSI |
|---|---|
| Origin | USA |
| Model | SMPS-3938 |
| Size Range | 2.5–1000 nm |
| Resolution | Up to 167 channels per scan |
| Scan Time | <10 s |
| Concentration Range | Up to 1×10⁷ particles/cm³ |
| Compliance | ISO 15900:2009 |
| Detector Options | Butanol or Water-based CPCs |
| Neutralizer Options | Radioactive (⁸⁵Kr) or Non-radioactive (Bipolar Corona) |
| Control Interface | Integrated touchscreen, PC-free operation |
| Software | TSIGuard™ and Instrument Manager™ (PC required for full data analysis) |
| Brand | Zhichen Tech |
|---|---|
| Origin | Beijing, China |
| Model | PAS-100 |
| Detection Principle | Broadband Solar Spectral Irradiance-Based Photolysis Frequency (j-value) Calculation |
| Measured Species | NO₂, HONO, HNO₃, HCHO, H₂O₂ (expandable) |
| Optical Collector | Spectralon® diffuser probe (2π sr hemispherical field-of-view) |
| Spectral Range | 280–450 nm |
| Spectral Resolution | ≤0.5 nm (FWHM) |
| Data Output | j(NO₂), j(HONO), j(HNO₃), j(HCHO), j(H₂O₂) in s⁻¹ |
| Integration Time | Adjustable from 10 ms to 10 s |
| Detector | Linear CCD array with thermoelectric cooling |
| Interface | Fiber-optic coupling (600 µm core, UV-enhanced) |
| Environmental Rating | IP65 enclosure |
| Operating Temperature | −20 °C to +50 °C |
| Power Supply | 24 V DC / 50 W max |
| Compliance | ASTM D7930–22 (Standard Practice for Measurement of Photolysis Frequencies), ISO 17025-accredited calibration traceable to NIST SRM 2243 |