Dr-Water
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| Brand | Dr-Water |
|---|---|
| Origin | Hunan, China |
| Model | Dr-W100 |
| Instrument Type | Portable/HANDHELD Water Quality Analyzer |
| Detection Parameters | Turbidity, Color, Free Chlorine, Chlorine Dioxide, Total Hardness, Permanganate Index (COD<sub>Mn</sub>), Ammonia Nitrogen, Ozone, Urea, Iron, Manganese |
| Turbidity Ranges | 0–20 NTU / 0–200 NTU / 0–1000 NTU |
| Repeatability | ≤ ±2% |
| Accuracy | ≤ ±5% |
| Wavelength Range | 330–900 nm |
| Wavelength Accuracy | ±5 nm |
| Optical Resolution | 0.001 Abs |
| Optical Stability | ≤ ±0.005 Abs/20 min |
| Light Source | Imported Cold LED (Lifespan >100,000 h) |
| Sample Cell | 16 mm & 25 mm Cuvettes |
| Display | 5-inch HD Color Touchscreen |
| Power Supply | Rechargeable Li-ion Battery + AC Adapter |
| Data Storage | 1,000,000 Records |
| Connectivity | USB Type-C (Charging & Data Transfer) |
| Calibration Modes | Blank, Factor, and Calibration Curve |
| Readout Units | Concentration or Absorbance |
| Housing Material | Corrosion-Resistant ABS |
| Brand | Dr-Water |
|---|---|
| Origin | Hunan, China |
| Model | Dr-W130 |
| Wavelength Range | 330–900 nm |
| Wavelength Accuracy | ±5 nm |
| Photometric Accuracy | ≤±5% |
| Repeatability | ≤±2% |
| Absorbance Resolution | 0.001 Abs |
| Optical Stability | ≤±0.005 Abs/20 min |
| Light Source | Imported Cold LED (Lifespan >100,000 h) |
| Display | 5-inch HD Color TFT Touchscreen |
| Sample Format | 16 mm & 25 mm Cuvettes |
| Calibration Modes | Blank, Factor, and Calibration Curve |
| Data Storage | Up to 1,000,000 Records |
| Power Supply | Rechargeable Li-ion Battery + AC Adapter |
| Interface | USB Type-C (Charging & Data Transfer) |
| Housing Material | Corrosion-Resistant ABS |
| Readout Modes | Concentration & Absorbance |
| Turbidity Measurement Modes | Standard, Low-Turbidity, Signal-Averaging, and Rapid-Settling |
| Brand | Dr-Water |
|---|---|
| Origin | Hunan, China |
| Model | Dr-W200 |
| Instrument Type | Portable/HANDHELD Water Quality Analyzer |
| Detection Principle | Colorimetric Method |
| Measured Parameters | Turbidity (0–20 NTU / 0–200 NTU / 0–1000 NTU), Color, Free Chlorine, Chlorine Dioxide, Permanganate Index (COD<sub>Mn</sub>), pH, Odor & Taste, Visible Particulates, Total Coliforms, Heterotrophic Plate Count (HPC) |
| Repeatability | ≤ ±2% |
| Accuracy | ≤ ±5% |
| Wavelength Range | 330–900 nm |
| Wavelength Accuracy | ±5 nm |
| Optical Resolution | 0.001 Abs |
| Optical Stability | ≤ ±0.005 Abs/20 min |
| Display | 7-inch HD color TFT capacitive touchscreen |
| Light Source | Imported long-life cold LED (≥100,000 h) |
| Detection Positions | Dual-path 16 mm & 25 mm cuvette slots + dedicated electrode port |
| Calibration Modes | Blank, Factor, and Multi-point Curve Calibration |
| Data Storage | 1,000,000 records with timestamp, sample ID, and operator tag |
| Power Supply | Rechargeable Li-ion battery (field operation) + AC adapter (lab continuity) |
| Battery Diagnostics | Real-time SOC monitoring with low-power alert |
| Connectivity | USB 2.0 interface |
| Printing | Integrated thermal printer |
| Operating Environment | 0–50 °C, RH 0–95% (non-condensing) |
| Housing Material | Flame-retardant ABS with chemical resistance |
| Rated Power | 1.2 W |
| Brand | Dr-Water |
|---|---|
| Origin | Hunan, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | Dr-W690 |
| Detection Principle | Chlorophyll Fluorescence Method |
| Chlorophyll a Range | 0.01–500 µg/L |
| Cyanobacteria Range | 0–50 × 10⁶ cells/L |
| Detection Limit | 0.01 µg/L (Chl-a) / 1 × 10⁴ cells/L (Cyanobacteria) |
| Accuracy | ±5% FS |
| Resolution | 0.01 µg/L (Chl-a), 1 × 10⁴ cells/L (Cyanobacteria) |
| Measurement Time | 20 s |
| Display | 8-inch HD color TFT capacitive touchscreen |
| Sample Cell | Dedicated 10-mm square quartz cuvette |
| Data Storage | 1,000,000 records with timestamp, ID, and operator tag |
| Connectivity | USB 2.0 interface |
| Power Supply | AC 220 V ±10%, 50 Hz |
| Operating Environment | 5–40 °C, RH <85% non-condensing |
| Housing Material | Flame-retardant ABS with IP54-rated enclosure |
| Brand | Dr-Water |
|---|---|
| Origin | Hunan, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | Dr-W850 |
| Instrument Type | Laboratory BOD Analyzer |
| Measurement Principle | Microbial Electrode Method |
| Measurement Range | 2–4000 mg/L |
| Detection Limit | 2 mg/L |
| Accuracy | ≤ ±5% |
| Single-Sample Analysis Time | 8 min |
| Incubation Temperature Range | 5–40 °C (ambient) |
| Display | 8-inch HD color capacitive touchscreen |
| Sample Volume | 50 mL |
| Data Storage Capacity | 1,000,000 records |
| Power Supply | AC 220 V ±10%, 50 Hz |
| Rated Power | 48 W |
| Operating Humidity | <85% RH (non-condensing) |
| Microbial Membrane | Dry-layer immobilized biocatalyst membrane, non-toxic and biocompatible |
| Membrane Shelf Life | ≥12 months (dry storage at room temperature) |
| Active Service Life | ≥30 days post-hydration |
| Auto-sampling | Integrated peristaltic pump with multi-channel valve switching |
| Cleaning Mode | Fully automated rinse cycle |
| Oxygen Supply | Membrane-integrated pulsed oxygenation system |
| Thermal Control | Digital pulse-width modulated (PWM) ambient-temperature stabilization |
| Data Export | USB 2.0 interface |
| Built-in Thermal Printer | Yes |
| Brand | Dr-Water |
|---|---|
| Origin | Hunan, China |
| Model | Dr-W960 |
| Instrument Type | Portable |
| Biological Indicator | Bioluminescent Bacteria (Aliivibrio fischeri, Vibrio qinghaiensis, Photobacterium phosphoreum) |
| Operating Temperature | 10–40 °C (ambient) |
| Detection Time | ≤15 min post-sample preparation |
| Light Detection Range | 300–1100 nm |
| Photodetector | Silicon Photomultiplier (SiPM) |
| Display | 5″ IPS Capacitive Touchscreen (1024×768) |
| Power Supply | Rechargeable Li-ion Battery + AC Adapter |
| Data Connectivity | USB-C, Wi-Fi, Bluetooth 5.0, 4G LTE |
| Data Storage | ≥10 million test records |
| Compliance | ISO 11348-3, GB/T 15441-1995 |
| Toxicity Quantification | Relative Luminescence Inhibition (%) → Converted to Equivalent Toxic Unit (TU) or Reference Toxicant (e.g., ZnSO₄·7H₂O mg/L) |
| Accuracy | ±1% RSD (n=3, vs. certified reference standard) |