Water Quality Analysis
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| Brand | Titan Instruments |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic (China-made) |
| Model | APIA-100 |
| Pricing | Available Upon Request |
| Measurement Principle | Potassium Permanganate Oxidation with ORP Endpoint Detection |
| Instrument Type | Laboratory Benchtop Analyzer |
| Repeatability | RSD ≤ 3.0% |
| Limit of Detection | ≤ 0.05 mg/L |
| Brand | Tongtai Lian (TTL) |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Regional Category | Domestic (China) |
| Model | TTL-6HS |
| Instrument Type | Laboratory Benchtop System |
| Compliance | Designed per HJ 1226–2021 (PRC National Ecological and Environmental Standard) |
| Construction Materials | 316 Stainless Steel Frame + PTFE-Coated Components |
| Heating Method | Integrated Constant-Temperature Water Bath |
| Sample Capacity | 6 Independent Reaction Vessels |
| Gas Control | Individual Mass Flow Regulation per Channel (N₂) |
| Vertical Travel Range | 100 ± 2 mm |
| Sample Rack | Rotatable Circular Platform with Radial Mounting |
| Drainage | Stainless Steel Ball Valve |
| Electrical Isolation | Separated Water Bath and Control Unit Architecture |
| Corrosion Resistance | Certified for HCl, H₂SO₄, and NaOH Exposure (pH 1–14, ≤80 °C) |
| Brand | BBE / bbe Moldaenke |
|---|---|
| Origin | Germany |
| Manufacturer Type | Direct Manufacturer |
| Import Status | Imported |
| Model | Tox protectII |
| Instrument Type | Online Monitoring System |
| Test Organism | Live Fish (e.g., Danio rerio or Oncorhynchus mykiss) |
| Operating Temperature Range | 5–28 °C |
| Measurement Chamber Volume | 9 L (customizable) |
| Detection Principle | Real-time optical grating-based behavioral activity monitoring |
| Communication Interfaces | RS-485, Ethernet, Modbus TCP, optional GSM/SMS and analog alarm outputs |
| Alarm Modes | Local visual (tricolor LED), audible, remote SMS/fax/email via integrated gateway |
| Compliance | Designed for GLP-aligned operation |
| Brand | Trace Elemental Instruments |
|---|---|
| Origin | Netherlands |
| Model | XPERT-TOC/TNb |
| Instrument Type | Laboratory TOC/TNb Analyzer |
| Detection Principle | Non-Dispersive Infrared (NDIR) Absorption for TOC |
| Oxidation Method | High-Temperature Catalytic Combustion (up to 1000 °C) |
| Measurement Range | 0–35,000 µg/L (ppb–ppm) |
| Accuracy | RSD < 1% |
| Resolution | 0.0001 µg/L |
| Detection Limit | 3 ppb (TOC) |
| Repeatability | RSD < 1% |
| Sample Introduction | Valve-Free Funnel-Tec™ Technology |
| Combustion Tube | ProCat™ High-Efficiency Catalytic Oxidation Tube |
| Autosampler | Integrated 65-Position Liquid Autosampler with On-Deck Stirring & Removable Tray |
| Software | TEIS v5.x (Compliant with FDA 21 CFR Part 11, GLP/GMP Audit Trail) |
| Brand | TE/Trace Elemental Instruments |
|---|---|
| Origin | Netherlands |
| Model | XPLORER AOX |
| Measurement Principle | High-Temperature Combustion–Coulometric Titration |
| Measurement Range | 0.0025–1000 µg Cl/L |
| Accuracy | <3% @ 200 ppb Cl |
| Repeatability | <2.5% RSD |
| LOD | 0.0025 µg Cl |
| Resolution | 0.0025 µg Cl |
| Combustion Temperature | Up to 1150 °C |
| Sample Introduction | 5–1000 mg (solid) or 0.1–10 mL (liquid) |
| Analysis Time (per sample) | 3–10 min (excluding pre-treatment) |
| Carrier Gases | O₂ (99.6%), Ar (99.998%) |
| Autosampler | Standard 20-position, expandable to 60-position |
| Software | TEIS 2 Online Control & Data Processing Platform |
| Compliance | ISO 9562:2004, EN ISO 9562, DIN 38409-H17, EPA Method 1650, HJ 1214–2021, GB/T 34845–2017, GB/T 35613–2017, GB/T 41533–2022, GB/T 22904–2008, GB/T 15959 |
| Brand | TTL |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | TTL-QZS |
| Instrument Type | Laboratory Benchtop System |
| Price Range | USD 7,000 – 14,000 (FOB Beijing) |
| Certifications | Chinese Utility Model Patent ZL202221875739.3 |
| Brand | TUNE VOLT |
|---|---|
| Model | TW-5235 |
| Origin | Beijing, China |
| Measurement Range | 0.05–100 mg/L (three sub-ranges: 0–1, 1–10, 10–100 mg/L) |
| Accuracy | ±5% or ±0.2 mg/L (whichever is greater) |
| Repeatability | ≤±3% |
| Chloride Interference Tolerance | ≤2000 mg/L |
| Digestion Temperature | 125 °C (adjustable from ambient to 180 °C) |
| Digestion Time | 30 min |
| Optical Drift | <0.002 A over 20 min |
| Dimensions | 400 × 310 × 158 mm |
| Weight | 5 kg |
| Display | Backlit LCD with Chinese menu interface |
| Data Storage | 10 calibration curves + 99 measurement records (non-volatile memory) |
| Connectivity | USB port for data export |
| Output | Integrated thermal printer |
| Light Source | High-brightness, long-life (100,000 h) imported LED |
| Brand | TUNE VOLT |
|---|---|
| Model | TW-5258 |
| Origin | Beijing, China |
| Instrument Type | Benchtop Laboratory Analyzer |
| Measurement Range | 0–1000 mg/L |
| Minimum Resolution | 0.01 mg/L |
| Accuracy | ≤ ±2% F.S. |
| Repeatability | ≤ 3% |
| Optical Drift | < 0.002 A in 20 min |
| Dimensions (with printer) | 340 mm × 250 mm × 130 mm |
| Dimensions (without printer) | 266 mm × 200 mm × 130 mm |
| Operating Temperature | 5–45 °C |
| Relative Humidity | ≤ 85% RH |
| Power Supply | AC 220 V ± 10%, 50 Hz ± 0.5 Hz |
| Weight | 4 kg |
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | Sentine Phosphate Online Monitor |
| Instrument Type | Phosphate (Orthophosphate) Analyzer |
| Accuracy | ±2% of reading or full scale |
| Resolution | 0.001 mg/L |
| Repeatability | ±2% of reading or full scale |
| Measurement Cycle | 5 minutes |
| Sample Flow Rate | 50–900 mL/min |
| Sample Interface | 1/4" compression fitting |
| Sample Temperature Range | 5–70 °C |
| Max. Suspended Solids | 2% w/w, max. particle size 1.27 mm |
| Sample Pressure Range | 0–345 kPa (0–50 psig) |
| Drain Outlet | 3/4" NPT male, atmospheric discharge |
| Alarm Outputs | User-programmable digital outputs |
| Analog Output | 4–20 mA, fully configurable |
| Power Supply | 100–240 VAC, 50/60 Hz |
| Enclosure Rating | NEMA 4X (IP65) |
| Mounting | Wall-mounted with included hardware |
| Dimensions (W×H×D) | 387 × 406 × 210 mm |
| Weight | ~36 kg (fully configured) |
| Certifications | CE compliant |
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | Sentine Sulfide Ion Online Monitor |
| Instrument Type | Multi-Ion Analyzer |
| Measurement Principle | Colorimetric (with DMPD Oxalate Reagent) |
| Range | 0–5 ppm (customizable for higher ranges) |
| Accuracy | ±2% of reading or full scale |
| Resolution | 0.001 ppm |
| Repeatability | ±2% of reading or full scale |
| Measurement Wavelength | 650 nm |
| Reference Wavelength | 810 nm |
| Cycle Time | 15 minutes |
| Sample Flow Rate | 50–900 mL/min |
| Sample Volume per Analysis | 30 mL |
| Sample Temperature Range | 5–70 °C |
| Max. Suspended Solids | 2% w/v, max. particle size 1.27 mm |
| Sample Pressure | 0–50 psig |
| Sample Interface | 1/4" compression fitting |
| Effluent Port | 3/4" NPT male, atmospheric vent |
| Alarm Outputs | User-programmable digital outputs |
| Analog Output | 4–20 mA, fully configurable |
| Power Supply | 100–240 VAC, 50/60 Hz |
| Enclosure Rating | NEMA 4X (IP65) |
| Mounting | Wall-mounted (hardware included) |
| Dimensions (W×H×D) | 387 × 406 × 210 mm |
| Weight | ~36 kg (fully configured) |
| Certifications | CE compliant |
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | Sentinel Chromium Ion Online Monitor |
| Price | Upon Request |
| Instrument Type | Multi-Ion Analyzer |
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | Sentinel Chromium Ion Online Monitor |
| Price | Upon Request |
| Instrument Type | Multi-Ion Analyzer |
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | Sentinel Cu Ion Online Monitor |
| Instrument Type | Multi-Ion Analyzer |
| Measurement Principle | Colorimetric Spectrophotometry (Bathocuproine or Neocuproine Method) |
| Range | 0–10 ppm (Low), 0–20 ppm (High) |
| Accuracy | ±2% of reading or full scale |
| Resolution | 0.001 ppm |
| Repeatability | ±2% of reading or full scale |
| Cycle Time | 5–15 minutes |
| Sample Flow Rate | 50–900 mL/min |
| Sample Temperature | 5–70 °C |
| Max Suspended Solids | 2% w/w, particle size ≤1.27 mm |
| Sample Pressure | 0–50 psig |
| Sample Interface | 1/4" compression fitting |
| Waste Outlet | 3/4" NPT male, atmospheric discharge |
| Analog Output | 4–20 mA, user-configurable |
| Alarm Outputs | Programmable digital relays |
| Power Supply | 100–240 VAC, 50/60 Hz |
| Enclosure Rating | NEMA 4X (IP65) |
| Mounting | Wall-mounted with integrated hardware |
| Dimensions (W×H×D) | 387 × 406 × 210 mm |
| Weight | ~36 kg |
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | Sentinel Fluoride Ion Online Monitor |
| Instrument Type | Fluoride Ion Analyzer |
| Measurement Principle | Potentiometric Ion-Selective Electrode (ISE) |
| Range | 0–20 ppm |
| Accuracy | ±5% of reading or full scale |
| Resolution | 0.001 ppm |
| Repeatability | ±5% of reading or full scale |
| Cycle Time | 2 minutes |
| Sample Flow Rate | 50–900 mL/min |
| Sample Interface | 1/4" compression fitting |
| Sample Temperature | 5–70 °C |
| Max. Suspended Solids | 2% w/w, max. particle size 1.27 mm |
| Sample Pressure | 0–50 psig |
| Waste Outlet | 3/4" NPT male, open drain |
| Alarm Outputs | User-programmable digital outputs |
| Analog Output | 4–20 mA, fully configurable |
| Power Supply | 100–240 VAC, 50/60 Hz |
| Enclosure Rating | NEMA 4X (IP65) |
| Dimensions (W×H×D) | 610 × 640 × 330 mm |
| Weight | ~36 kg (fully assembled) |
| Mounting | Wall-mounted with included hardware |
| Certifications | CE-compliant, designed to meet general requirements for industrial environmental monitoring installations |
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | Sentinel Nitrate Online Monitor |
| Instrument Type | Nitrate Ion (NO₃⁻) Analyzer |
| Measurement Principle | Ion-Selective Electrode (ISE) |
| Range Options | 0–10 ppm, 0–50 ppm, 0–100 ppm |
| Accuracy | ±5% of reading or full scale |
| Resolution | 0.001 ppm |
| Repeatability | ±5% of reading or full scale |
| Cycle Time | 2 minutes |
| Sample Flow Rate | 50–900 mL/min |
| Sample Inlet | 1/4″ compression fitting |
| Sample Temperature | 5–70 °C |
| Max Suspended Solids | 2% w/w, max particle size 1.27 mm (0.05″) |
| Sample Pressure | 0–50 psig |
| Waste Outlet | 3/4″ NPT male, atmospheric discharge |
| Alarm Outputs | User-programmable digital outputs |
| Analog Output | 4–20 mA, fully configurable |
| Power Supply | 100–240 VAC, 50/60 Hz |
| Enclosure Rating | NEMA 4X (IP65) |
| Dimensions (W×H×D) | 610 × 640 × 330 mm |
| Weight | ~36 kg (fully assembled) |
| Mounting | Wall-mounted with included hardware |
| Certifications | CE compliant |
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | Sentinel Silicon Online Analyzer |
| Instrument Type | Silica (Orthosilicic Acid) Analyzer |
| Measurement Principle | Colorimetric Spectrophotometry (Molybdenum Blue Method) |
| Detection Wavelengths | 810 nm (low-range), 312 nm (high-range) |
| Range Options | 0–100 ppb, 0–500 ppb, 0–1000 ppb, 0–2 ppm, 0–5 ppm, 0–10 ppm |
| Accuracy | ±2% of reading or full scale |
| Resolution | 0.001 ppb (at lowest range) |
| Repeatability | ±2% of reading or full scale |
| Sample Flow Rate | 50–900 mL/min |
| Sample Interface | 1/4" compression fitting |
| Sample Temperature | 5–70 °C |
| Max Suspended Solids | 2% w/w, particle size ≤ 1.27 mm |
| Sample Pressure | 0–50 psig |
| Drain Outlet | 3/4" NPT male, atmospheric vent |
| Alarm Outputs | User-programmable digital relays |
| Analog Output | 4–20 mA, fully configurable |
| Power Supply | 100–240 VAC, 50/60 Hz |
| Enclosure Rating | NEMA 4X (IP65) |
| Mounting | Wall-mounted with integrated hardware |
| Dimensions (W×H×D) | 387 × 406 × 210 mm |
| Weight | ~36 kg (fully assembled) |
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | Sentinel Sodium Ion Online Monitor |
| Price Range | USD 28,000 – 70,000 |
| Instrument Type | Online Water Quality Analyzer |
| Measurement Principle | Ion-Selective Electrode (ISE) with Single Standard Addition (SSA/SKA) Method |
| Range | High Range 0–200 ppm, Low Range 0–200 ppb |
| Accuracy | ±2% of reading or full scale |
| Resolution | 0.001 ppm/ppb |
| Repeatability | ±2% of reading or full scale |
| Sample Volume | 19 mL |
| Reagent Consumption | 2 mL per analysis |
| Sample Flow Rate | 50–900 mL/min |
| Sample Inlet | 1/4" compression fitting |
| Sample Temperature | 5–70 °C |
| Suspended Solids | ≤2% w/w, max particle size 0.05" (1.27 mm) |
| Sample Pressure | 0–50 psig |
| Waste Outlet | 3/4" NPT male, open drain |
| Alarm Outputs | User-programmable digital outputs |
| Analog Output | 4–20 mA, fully configurable |
| Power Supply | 100–240 VAC, 50/60 Hz |
| Enclosure Rating | NEMA 4X (IP65) |
| Mounting | Wall-mounted (hardware included) |
| Dimensions (W×H×D) | 387 × 406 × 210 mm |
| Weight | ~36 kg (fully assembled) |
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | Sentinel Total Manganese Online Monitor |
| Instrument Type | Multi-Ion Analyzer |
| Measurement Principle | Colorimetric Analysis (Formaldehyde Oxime Complexation) |
| Range | Low: 0–25 ppb, High: 0–200 ppb |
| Accuracy | ±2% of reading or full scale |
| Resolution | 0.001 ppb |
| Repeatability | ±2% of reading or full scale |
| Cycle Time | 10 minutes |
| Sample Flow Rate | 50–900 mL/min |
| Sample Inlet | 1/4" compression fitting |
| Sample Temperature | 5–70 °C |
| Suspended Solids | ≤2% w/w, max particle size 1.27 mm |
| Sample Pressure | 0–50 psig |
| Effluent Outlet | 3/4" NPT male, atmospheric discharge |
| Alarm Outputs | User-programmable |
| Analog Output | 4–20 mA, programmable |
| Power Supply | 100–240 VAC, 50/60 Hz |
| Enclosure Rating | NEMA 4X (IP65) |
| Mounting | Wall-mounted with included hardware |
| Dimensions (W×H×D) | 387 mm × 406 mm × 210 mm |
| Weight | ~36 kg |
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | Sentinel Zinc Ion Online Monitor |
| Pricing | Upon Request |
| Instrument Type | Multi-Ion Analyzer |
| Brand | ULUPURE |
|---|---|
| Origin | Shaanxi, China |
| Manufacturer Type | Authorized Distributor |
| Product Category | Domestic |
| Model | F2000-680/UP |
| Instrument Type | Laboratory-Based |
| Measurement Principle | Infrared Spectrophotometry (FTIR-based) |
| Measurement Range | 0–80,000 mg/L |
| Detection Limit | 0.02 mg/L |
| Accuracy | ±2% |
| Wavenumber Resolution | ±1 cm⁻¹ |
| Measurement Frequency | 7 samples/hour |
| Brand | -- |
|---|---|
| Origin | United Kingdom |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | DC1500-U |
| Price | Upon Request |
| Brand | Water Doctor |
|---|---|
| Origin | Hunan, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | Dr-M1102 |
| Instrument Type | Portable |
| Measurement Principle | Electrochemical (Ion-Selective Electrode) |
| Range | 0–100 mg/L NH₃–N |
| Accuracy | ±10% FS |
| Detection Limit | 0 mg/L (defined by electrode sensitivity and signal-to-noise ratio) |
| Measurement Time | ≤60 s per parameter |
| Simultaneous Channels | 6 independent electrode ports |
| Display | 8-inch HD color capacitive touchscreen |
| Data Storage | 1,000,000 measurement records with timestamp, location (optional GPS), and electrode ID |
| Power Supply | Rechargeable Li-ion battery (≥12 h continuous operation) |
| IP Rating | IP68 for electrodes |
| Operating Environment | 0–50 °C, ≤85% RH (non-condensing) |
| Connectivity | USB 2.0, optional Bluetooth 5.0 module |
| Software Compliance | Audit-trail enabled logging, user-access levels, data export in CSV/Excel format |
| Brand | Water Doctor |
|---|---|
| Origin | Hunan, China |
| Manufacturer Type | Authorized Distributor |
| Product Category | Domestic |
| Model | Dr-M1202P |
| Instrument Type | Portable |
| Measurement Principle | Electrochemical (Ion-Selective Electrode, ISE) |
| Measurement Range | 0–100 mg/L NH₃–N |
| Accuracy | ±10% of reading |
| Detection Limit | 0 mg/L (defined by electrode sensitivity and signal-to-noise ratio) |
| Measurement Time | ≤60 seconds per sample |
| Sample Throughput | Three independent electrode measurement positions |
| Display | 5-inch HD color TFT touchscreen |
| Language Support | English & Chinese |
| Data Storage | Up to 1,000,000 measurement records |
| Power Supply | Rechargeable Li-ion battery + USB Type-C AC/DC adapter (dual-mode operation) |
| Electrode Protection Rating | IP68 |
| Operating Environment | 0–50 °C, ≤85% RH (non-condensing) |
| Electrode Cable Length | 3–5 m (customizable) |
| Built-in Thermal Printer | Yes |
| Data Interface | USB Type-C (for charging, data export, and firmware update) |
| Reading Modes | Real-time, Timed, and Interval |
| Auto Temperature Compensation | Yes |
| Sleep Mode | Configurable idle timeout |
| Brand | Water Doctor |
|---|---|
| Origin | Hunan, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | Dr-M5100 |
| Instrument Type | Laboratory Benchtop Analyzer |
| Principle | Infrared Spectrophotometry (Triple-Wavelength Absorption at 2930 cm⁻¹, 2960 cm⁻¹, and 3030 cm⁻¹) |
| Measurement Range | 0.0–800 mg/L (water matrix) |
| Detection Limit | 3σ ≤ 0.03 mg/L (based on 11 blank measurements) |
| Accuracy | ±2% relative error |
| Wavenumber Range | 2400–3400 cm⁻¹ (equivalent to 2941–4167 nm) |
| Wavenumber Accuracy | ±1 cm⁻¹ |
| Absorbance Range | 0.0000–2.0000 AU (T = 100%–1%) |
| Extraction Solvents | Perchloroethylene or Carbon Tetrachloride (compliant with HJ 637–2018) |
| Brand | Water Doctor |
|---|---|
| Origin | Hunan, China |
| Model | Dr-T9001 |
| Instrument Type | Laboratory Benchtop Analyzer |
| Measurement Principle | Rapid Digestion Spectrophotometry |
| Wavelength Range | 340–900 nm |
| COD Range | 2–20,000 mg/L |
| Accuracy | ≤ ±5% |
| Repeatability | ≤ ±2% |
| LOD | 2 mg/L |
| Digestion & Measurement Time | 10 min |
| Wavelength Accuracy | ±1 nm |
| Wavelength Repeatability | < 0.2 nm |
| Spectral Bandwidth | 4 nm |
| Transmittance Error | ±0.5% |
| Transmittance Repeatability | ≤ 0.2% T |
| Optical Stability | ≤ ±0.005 Abs/20 min |
| Resolution | 0.001 Abs |
| Light Source | Imported Cold LED (Lifespan > 100,000 h) |
| Pre-stored Calibration Curves | 1,000 |
| Data Storage Capacity | 1,000,000 records |
| Display | 8-inch HD capacitive touchscreen |
| Sample Holders | Rotatable 16-mm tube position (360°), dual cuvette positions (10 mm & 30 mm pathlength), and four independent digital electrode ports |
| Detection Modes | Absorbance, Transmittance, Concentration |
| Calibration Options | Single-point and multi-point standard calibration |
| Data Export | USB flash drive |
| Housing Material | Corrosion- and heat-resistant ABS |
| Dimensions | 392 × 315 × 170 mm |
| Weight | 4.4 kg |
| Brand | Water Doctor |
|---|---|
| Origin | Hunan, China |
| Model | Dr-T9003 |
| Measurement Principle | Spectrophotometry (UV-Vis) |
| Detection Range | 0–100 mg/L (for both TP and TN) |
| Accuracy | ≤ ±5% |
| Detection Limit | Not specified (instrument-level LOD determined by method, not instrument spec) |
| 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 |
| Light Source | Imported cold-light LED (rated lifetime > 100,000 h) |
| Display | 8-inch HD capacitive touchscreen |
| Sample Holders | Rotatable tube holder (360°), dual cuvette positions (10 mm & 30 mm pathlength), four independent digital electrode ports |
| Calibration | Single- or multi-point calibration with up to 1000 pre-stored method curves |
| Data Storage | 1,000,000 measurement records |
| Interface | USB port for data export (U-disk compatible), built-in thermal printer |
| Housing Material | Corrosion- and heat-resistant ABS |
| Dimensions | 392 × 315 × 170 mm |
| Weight | 4.4 kg |
| Brand | Water Doctor (DoctorWater) |
|---|---|
| Origin | Hunan, China |
| Model | Dr-T9901 |
| Instrument Type | Portable |
| Measurement Principle | Rapid Digestion Spectrophotometry (Lab-Grade) |
| 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 |
| COD Range | 2–20,000 mg/L |
| COD Accuracy | ≤±5% |
| LOD (COD) | 2 mg/L |
| Optical Stability | ≤±0.005 Abs/20 min |
| Resolution | 0.001 Abs |
| Photometric System | Fiber-Optic Detection |
| Display | 5-inch HD Touchscreen |
| Calibration Modes | Single-point & Multi-point |
| Pre-stored Curves | 600 |
| Data Storage | 1,000,000 records |
| Power Supply | Rechargeable Li-ion Battery + AC Adapter |
| Housing Material | Corrosion-Resistant ABS |
| Brand | Water Doctor |
|---|---|
| Origin | Hunan, China |
| Model | Dr-W112 |
| Instrument Type | Portable/HANDHELD Water Quality Analyzer |
| Detection Principle | Spectrophotometric (4-AAP Method per HJ 503-2009 / ISO 6439) |
| Primary Target Analyte | Volatile Phenols |
| Measured Parameters | Turbidity (0–20 NTU / 0–200 NTU / 0–1000 NTU), Color, Free Chlorine, Chlorine Dioxide, Total Hardness, Permanganate Index (COD<sub>Mn</sub>), Ammonia Nitrogen, Ozone, Urea, Iron, Manganese |
| Wavelength Range | 330–900 nm |
| Wavelength Accuracy | ±5 nm |
| Photometric Resolution | 0.001 Abs |
| Optical Stability | ≤±0.005 Abs/20 min |
| Repeatability | ≤±2% |
| Accuracy | ≤±5% |
| Light Source | Imported Long-Life Cold LED (≥100,000 h) |
| Sample Cell | 16 mm and 25 mm round cuvettes |
| Display | 5-inch HD color TFT capacitive touchscreen |
| Language Support | English & Chinese |
| Power Supply | Rechargeable Li-ion battery + AC adapter (dual-mode operation) |
| Data Storage | Up to 1,000,000 measurement records |
| Connectivity | USB Type-C (charging + data transfer) |
| Printing | Built-in thermal printer |
| Calibration Modes | Blank, Factor, and Multi-point Curve Calibration |
| Interference Compensation | Integrated chromaticity & optical attenuation correction algorithm |
| Housing Material | Corrosion-resistant ABS with IP67-rated enclosure |
| Compliance | Designed in accordance with HJ 503-2009 (China), ISO 6439:1984, and ASTM D1209/D5810 for phenolic compounds |
| Brand | Water Doctor |
|---|---|
| Origin | Hunan, China |
| Model | Dr-W5000 |
| Instrument Type | Portable |
| Measurement Principle | Ultraviolet Fluorescence Spectrometry |
| Measurement Range | 0.005–1500 mg/L (as petroleum hydrocarbons) |
| Detection Limit | 0.005 mg/L |
| Accuracy | ±5% of reading |
| Detector | UV-optimized photomultiplier tube (PMT) with excitation at 254 nm and emission detection at 365 nm |
| Measurement Time | ≤120 seconds per sample |
| Display | 5-inch high-resolution color TFT touchscreen |
| Power Supply | Rechargeable lithium-ion battery (standby >30 days |
| Data Storage | 1,000,000 measurement records with timestamp, sample ID, and calibration history |
| Connectivity | USB 2.0 for data export and firmware update |
| Operating Environment | 5–40 °C, relative humidity <85% RH (non-condensing) |
| Sample Vessel | Dedicated quartz-cuvette-compatible disposable glass tubes (10 mm pathlength) |
| Extraction Solvent | n-Hexane (ASTM D7066-compliant) |
| Auto-Sleep | Activated after 5 minutes of inactivity |
| Built-in Thermal Printer | Yes |
| Color Compensation Algorithm | Real-time spectral correction for chromophoric interference |
| Onboard Calibration Module | User-accessible zero/span and multi-point calibration routines |
| Compliance | Designed to support ASTM D7678, ISO 9377-2, and EPA Method 1664B workflows (extraction-dependent) |
| Brand | Water Doctor |
|---|---|
| Origin | Hunan, China |
| Model | Dr-W660 |
| Measurement Principle | In-situ Fluorescence Detection |
| Chlorophyll-a Range | 0.01–500 µg/L |
| Phycocyanin (Cyanobacteria) Range | 0–40 × 10⁶ cells/L |
| Detection Limit | 0.01 µg/L (Chl-a), 1 × 10⁴ cells/L (Cyanobacteria) |
| Resolution | 0.01 µg/L (Chl-a), 10⁴ cells/L (Cyanobacteria) |
| Accuracy | ±5% FS |
| Display | 5-inch HD color capacitive touchscreen |
| Power | Rechargeable Li-ion battery (≥30-day standby), AC adapter support |
| Data Storage | 1,000,000 records |
| Interface | USB 2.0 |
| Printer | Integrated thermal printer |
| Sample Cell | 10 mm square quartz cuvette |
| Housing Material | Corrosion-resistant ABS |
| Operating Temp | 5–40 °C |
| Relative Humidity | <85% RH (non-condensing) |
| Compliance | Designed for field-deployable compliance with ISO 10260 (water quality — determination of chlorophyll-a by fluorescence), ASTM D7212-19 (standard test method for chlorophyll-a in water by fluorometric measurement) |