Doctor Water
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| Brand | Doctor Water |
|---|---|
| Origin | Hunan, China |
| Model | Dr-M1204P |
| Instrument Type | Portable |
| Measurement Principle | Electrochemical (Clark-type polarographic sensor) |
| Measurement Range | 0–50 mg/L |
| Accuracy | ±1% FS |
| Resolution | 0.001 mg/L |
| Calibration | Two-point calibration (air-saturated water & zero-oxygen solution) |
| Detection Limit | 0.001 mg/L |
| Temperature Compensation | Automatic (0–50 °C) |
| Display | 5-inch HD color TFT touchscreen |
| Data Storage | Up to 1,000,000 records |
| Power Supply | Rechargeable Li-ion battery + USB-C AC adapter |
| Electrode Protection Rating | IP68 |
| Operating Environment | 0–50 °C, ≤85% RH (non-condensing) |
| Electrode Cable Length | Standard 3–5 m (customizable) |
| Multi-parameter Capability | Supports simultaneous or sequential measurement of DO, pH, EC, TDS, ORP, turbidity, temperature, salinity, chlorophyll-a, phycocyanin, suspended solids, free chlorine, COD, ammonia nitrogen, oil-in-water |
| Brand | Doctor Water |
|---|---|
| Origin | Hunan, China |
| Model | Dr-M1901 |
| Instrument Type | Portable |
| Parameter Type | Multi-parameter |
| pH Range | -2.00 to 20.00 pH |
| Display Resolution | 0.01 pH |
| Accuracy | ±0.01 pH |
| Calibration Points | 1–3 point |
| Temperature Range | 0–105 °C |
| Temp. Resolution | 0.1 °C |
| Temp. Accuracy | ±0.5 °C |
| Temperature Compensation | Automatic (0–100 °C) |
| Data Storage | 100 sets |
| Interface | USB, BNC, 3.5 mm audio jack |
| Power | 3 × AA batteries or DC 5 V adapter |
| Brand | Doctor Water |
|---|---|
| Origin | Hunan, China |
| Model | Dr-BOD(6T) |
| Measurement Principle | Mercury-Free Pressure-Difference Method |
| BOD5 Range | 0–4000 mg/L |
| Accuracy | Compliant with Standard BOD5 Accuracy Requirements (Glucose-Glutamic Acid Reference Standard: 180–230 mg/L) |
| Sample Capacity | 6 Independent Channels |
| Incubation Temperature | 20 ± 1 °C |
| Data Logging Interval | Every 2 Hours |
| Incubation Duration | 1–30 Days |
| Bottle Volume | 580 mL |
| Data Storage Capacity | 100,000 Records |
| Stirring Modes | Continuous or Intermittent |
| Power Supply | AC 110–220 V, 50/60 Hz |
| Rated Power | 10 W |
| Battery Backup | Rechargeable Li-ion per Channel |
| Compliance | ASTM D5210, ISO 5815-1:2019, EPA 405-B-16-001 |
| Brand | Doctor Water |
|---|---|
| Origin | Hunan, China |
| Model | Dr-T9010 |
| Instrument Type | Laboratory Benchtop Analyzer |
| Measurement Principle | Rapid Digestion Spectrophotometry (COD) & Nesslerization or Salicylate Method (Ammonia-N) |
| Wavelength Range | 340–900 nm |
| Wavelength Accuracy | ±1 nm |
| Wavelength Repeatability | <0.2 nm |
| Spectral Bandwidth | 4 nm |
| Photometric Accuracy | ±0.5% T |
| Photometric Repeatability | ≤0.2% T |
| Absorbance Resolution | 0.001 Abs |
| Optical Stability | ≤±0.005 Abs/20 min |
| Detection Range (COD) | 2–20,000 mg/L |
| Detection Range (NH₃-N) | 0.02–100 mg/L (configurable per method) |
| Accuracy | ≤±5% |
| Repeatability | ≤±2% |
| LOD (COD) | 2 mg/L |
| Measurement Time | ≤10 min (post-digestion) |
| Calibration | Single- or Multi-point with Pre-stored Curves (n=1000) |
| Display | 8-inch HD Capacitive Touchscreen |
| Data Storage | 1,000,000 records |
| Interface | USB-A for U-disk export & thermal printer |
| Power Supply | AC 100–240 V, 50/60 Hz |
| Dimensions | 392 × 315 × 170 mm |
| Weight | 4.4 kg |
| Housing Material | Flame-retardant ABS with Chemical Resistance |
| Brand | Doctor Water |
|---|---|
| Origin | Hunan, China |
| Model | Dr-T9903 |
| Instrument Type | Portable/HANDHELD Water Quality Analyzer |
| Detection Principles | Spectrophotometry (Molybdate Blue for Total Phosphorus |
| Measured Parameters | COD, Ammonia-N, Total Phosphorus, Total Nitrogen, Heavy Metals (e.g., Cu²⁺, Pb²⁺, Cd²⁺ via colorimetric kits), pH, Dissolved Oxygen, Conductivity, Turbidity, Temperature, ORP, TDS, Chlorophyll-a, Phycocyanin, SS, Free Chlorine, Oil-in-Water, Salinity, etc. (80+ parameters) |
| COD Range | 2–20,000 mg/L |
| Wavelength Range | 340–900 nm |
| Wavelength Accuracy | ±1 nm |
| Wavelength Repeatability | <0.2 nm |
| Spectral Bandwidth | 4 nm |
| Transmittance Error | ±0.5% |
| Transmittance Repeatability | ≤0.2% T |
| Absorbance Resolution | 0.001 Abs |
| Optical Stability | ≤±0.005 Abs/20 min |
| Photometric Repeatability | ≤±2% |
| Photometric Accuracy | ≤±5% |
| Pre-stored Calibration Curves | 600 |
| Data Storage Capacity | 1,000,000 records |
| Power Supply | Rechargeable Li-ion battery + AC adapter |
| Display | 5-inch HD capacitive touchscreen |
| Interface Language | Chinese (English optional) |
| Enclosure Material | Corrosion-resistant ABS |
| IP Rating | IP67-rated carry case included |
| Brand | Doctor Water |
|---|---|
| Origin | Hunan, China |
| Model | Dr-W880 |
| Instrument Type | Portable BOD Analyzer |
| Measurement Principle | Microbial Electrode Method |
| Measurement Range | 2–4000 mg/L |
| Detection Limit | 2 mg/L |
| Accuracy | ≤ ±5% |
| Single-Sample Measurement Time | 7.8 min |
| Incubation Temperature Range | 1.5–40 °C |
| Display | 8-inch capacitive touchscreen (1024 × 768 IPS) |
| Operating System | Android-based embedded OS |
| Data Storage Capacity | 80 million records |
| Power Supply | Built-in 30,000 mAh Li-ion battery + AC adapter |
| Connectivity | USB, Wi-Fi, Bluetooth, 4G LTE |
| Compliance | HJ/T 86–2002, Standard Methods for the Examination of Water and Wastewater (4th Ed.) |
| Brand | Doctor Water |
|---|---|
| Origin | Hunan, China |
| Model | Dr-WCB |
| Type | Portable Turbidimeter |
| Measurement Range | 0–20 NTU / 0–200 NTU / 0–1000 NTU |
| Resolution | 0.001 Abs |
| Accuracy | ≤ ±5% |
| Repeatability | ≤ ±2% |
| Optical Stability | ≤ ±0.005 Abs/20 min |
| Wavelength Range | 330–900 nm |
| Wavelength Accuracy | ±5 nm |
| Operating Temperature | 0–50 °C |
| Operating Humidity | 0–95% RH (non-condensing) |
| Power | Dual AC/DC supply |
| Display | 5-inch HD color capacitive touchscreen |
| Sample Format | 16 mm and 25 mm round cuvettes |
| Light Source | Imported long-life cold LED source (>100,000 h) |
| Data Storage | Up to 1,000,000 measurement records |
| Interface | USB Type-C (charging + data transfer) |
| Printing | Integrated thermal printer |
| Readout Modes | Turbidity (NTU), Absorbance (Abs) |
| Housing Material | Corrosion- and heat-resistant ABS |