- All
- Favorite
- Popular
- Most rated
| Brand | LESHI |
|---|---|
| Origin | Beijing, China |
| Model | SE303 |
| Instrument Type | Portable |
| Detection Target | Single-component (CO) |
| Detection Principle | Electrochemical or NDIR (Non-Dispersive Infrared) |
| Measurement Ranges | 0–2000 ppm or 0–4.00% CO |
| Compliance | HJ/T 44–1999, HJ 973–2018 |
| Display | Backlit LCD |
| Sampling System | Integrated diaphragm pump, stainless steel probe, PTFE sampling hose, dual-stage filtration (particulate + moisture removal), flow meter |
| Data Output | USB interface, U-disk data export compatible with Excel |
| Optional Expansion | O₂ sensor module |
| Brand | LESHI |
|---|---|
| Origin | Beijing, China |
| Model | SE302 |
| Instrument Type | Portable |
| Detection Target | Single-component (CO₂) |
| Compliance | HJ 870–2017 |
| Detection Principle | Non-Dispersive Infrared (NDIR) |
| Display | Backlit LCD |
| Power Supply | Rechargeable Li-ion Battery |
| Data Output | USB interface, internal storage, optional portable printer |
| Sample Handling | Integrated diaphragm pump, stainless steel probe, dual-stage filtration, condensate removal system, mass flow control |
| Brand | LESHI |
|---|---|
| Origin | Beijing, China |
| Model | SE330 |
| Instrument Type | Portable |
| Gas Targets | CO₂, CO, O₂ |
| Detection Principle | NDIR (CO₂), Electrochemical (CO & O₂) |
| Measurement Range | CO₂: 0–2000 ppm (standard), CO: 0–2000 ppm / 0–4.00% (dual-range), O₂: 0–25% vol |
| Sensor Lifespan | CO & O₂ sensors: 3–4 years |
| CO₂ NDIR detector | indefinite under contamination-free operation |
| Display | Backlit LCD touchscreen |
| Built-in Components | Sampling pump, particulate filter, flow meter, condensate removal system |
| Probe | Stainless-steel probe with flexible sampling hose |
| Compliance Context | Designed for field-deployable compliance with occupational hygiene standards (e.g., OSHA PELs, ACGIH TLVs), indoor air quality protocols (ISO 16000 series), and combustion efficiency assessment per EN 15316-4-2 and ASTM D7549 |
Show next