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| Brand | Ruixin |
|---|---|
| Origin | Shanghai, China |
| Model | SZ-HCL |
| Instrument Type | Portable |
| Measurement Principle | Colorimetric (DPD Method) |
| Measured Parameters | Residual Chlorine, Total Chlorine |
| Range | 0–10 mg/L |
| Accuracy | ±5% |
| Repeatability | ≤2% |
| Resolution | 0.01 mg/L |
| Detection Limit | 0.02 mg/L |
| Absorbance Range | 0.000–4.000 |
| Absorbance Resolution | 0.001 |
| Transmittance Accuracy | ±2.0% |
| Transmittance Repeatability | ≤0.2% |
| Stability | ≤0.5% (3 min) |
| Display | 4.3″ TFT color touchscreen |
| Data Output | Embedded thermal printer, USB interface |
| Power Supply | AC 220 V / Rechargeable Li-ion battery |
| Compliance | Designed for field-deployable water quality testing per standard methods including APHA 4500-Cl G (DPD), ISO 7393-2, and EPA Method 334.0 |
| Brand | Ruixin |
|---|---|
| Origin | Shanghai, China |
| Model | SZ-XD402 |
| Instrument Type | Portable |
| Measurement Principle | DPD Colorimetric Spectrophotometry |
| Measurable Parameters | Residual Chlorine, Total Chlorine, Chlorine Dioxide, Ozone, Dissolved Oxygen |
| Range | 0.05–5.00 mg/L (Cl₂, ClO₂, O₃, DO) |
| Accuracy | ±3% FS |
| Repeatability | ±0.05 mg/L |
| Resolution | 0.01 mg/L |
| LOD | 0.05 mg/L |
| Absorbance Range | 0.000–4.000 (Resolution: 0.001) |
| Transmittance Range | 0.00–100.00% (Resolution: 0.01%) |
| Photometric Accuracy | ±2.0% T |
| Photometric Repeatability | ≤0.2% T |
| Stability | ≤0.3% T (3 min) |
| Display | 4.5-inch color TFT touch LCD |
| Connectivity | USB interface |
| Power Supply | AC 220 V / DC 5 V / Rechargeable Li-ion battery |
| Brand | Ruixin |
|---|---|
| Origin | Shanghai, China |
| Model | SZ-8D |
| Instrument Type | Portable / Handheld Water Quality Analyzer |
| Detection Parameters | Ammonia-N, Total Phosphorus, Total Nitrogen, COD (Cr), Residual Chlorine, Total Chlorine, Dissolved Oxygen, Volatile Phenols, Chlorine Dioxide |
| Display | 4.3-inch Color TFT Touchscreen |
| Absorbance Range | 0.000–4.000 AU |
| Transmittance Range | 0.00–100.00% |
| Transmittance Resolution | 0.01% |
| Absorbance Resolution | 0.001 AU |
| Photometric Accuracy | ±2.0% T |
| Photometric Repeatability | ≤0.2% T |
| Baseline Stability | ≤0.3% (3 min) |
| Communication Interface | USB |
| Power Supply | AC 220 V / DC 5 V / Rechargeable Lithium Battery |
| Brand | Ruixin |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Distributor |
| Country of Origin | Domestic (China) |
| Model | SZ-RJ2 |
| Price | ¥5600 |
| Display | 4.5-inch color LCD touchscreen |
| Absorbance Range | 0.000–4.000 |
| Transmittance Range | 0.00–100.00% |
| Transmittance Resolution | 0.01% |
| Absorbance Resolution | 0.001 |
| Photometric Accuracy | ±2.0% |
| Photometric Repeatability | ≤0.2% |
| Baseline Stability | ≤0.3% (3 min) |
| DO Measurement Range | 1.0–10.0 mg/L |
| Communication Interface | USB |
| Power Supply | AC 220 V / DC 5 V / Rechargeable Li-ion battery |
| Brand | RuiXin |
|---|---|
| Origin | Shanghai, China |
| Model | SZ-CL |
| Instrument Type | Portable |
| Measurement Parameter | Residual Chlorine |
| Detection Range | 0.05–10.00 mg/L |
| Accuracy | ≤5% |
| Repeatability | ≤2% |
| Resolution | 0.01 mg/L |
| Limit of Detection (LOD) | 0.02 mg/L |
| Display | 4.3-inch color TFT touchscreen |
| Absorbance Range | 0.000–4.000 |
| Transmittance Range | 0.00–100.00% |
| Transmittance Resolution | 0.01% |
| Absorbance Resolution | 0.001 |
| Photometric Accuracy | ±2.0% (transmittance) |
| Photometric Repeatability | ≤0.2% |
| Baseline Stability | ≤0.3% (over 3 min) |
| Communication Interface | USB |
| Power Supply | AC 220 V / DC 5 V / Rechargeable Li-ion battery |
| Integrated Thermal Printer | Yes |
| Data Storage & Recall | Yes |
| Data Export Capability | Yes |
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