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| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Regional Classification | Domestic (PRC) |
| Model | ZDY-504 |
| Pricing | Available Upon Request |
| Instrument Type | Portable Karl Fischer Coulometric & Volumetric Titrator |
| Measurement Range | 0.1 – 250.0 mg H₂O |
| Repeatability | ≤0.5% RSD |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | DGB-480 |
| Instrument Type | Portable / Handheld Water Quality Analyzer |
| Detection Principle | Colorimetry |
| Detection Parameters | Turbidity, Color, Transmittance Ratio, Ozone, Nitrite Nitrogen, Urea, Hexavalent Chromium, Manganese, Total Nitrogen, Nitrate Nitrogen, Nitrate, Formaldehyde, Water Hardness, Zinc, Nitrite, Free Chlorine, Total Chlorine, Chlorine Dioxide, Permanganate Index, Low-Concentration COD<sub>Cr</sub>, High-Concentration COD<sub>Cr</sub>, Cadmium, Ammonia Nitrogen, Ammonium Ion, Total Phosphorus, Total Phosphate, Nickel, Ferrous Ion, Iron, Sulfite |
| Measurement Range | Ammonia Nitrogen 0.03–10.00 mg/L |
| Repeatability | ≤0.5% |
| Brand | Hach |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (China) |
| Model | MS5100 |
| Instrument Type | Online Water Quality Analyzer |
| Measurement Principle | Electrochemical Detection (Free Chlorine & Chlorine Dioxide), Nephelometry (Turbidity), Potentiometric (pH & ORP), Conductometric (Conductivity) |
| Measured Parameters | Free Chlorine, Chlorine Dioxide, Turbidity, pH, ORP, Conductivity, Temperature |
| Measurement Ranges | Free Chlorine: 0–10 mg/L as Cl₂ |
| Chlorine Dioxide | 0–5 mg/L |
| Repeatability | Free Chlorine: ±1% or ±0.01 mg/L (whichever is greater) |
| Chlorine Dioxide | ±1.5% or ±0.01 mg/L (whichever is greater) |
| Detection Limit | 0.008 mg/L Cl₂ (at 25 °C) |
| Accuracy | ±10% (4–5 mg/L Cl₂ range) |
| Sample Temperature Range | 5–40 °C |
| Operating Humidity | 0–90% RH (non-condensing) |
| Dimensions | 342 mm × 329 mm × 177 mm |
| Brand | Hach |
|---|---|
| Model | SP510 |
| Origin | USA |
| Instrument Type | Online Water Quality Analyzer |
| Measurement Principle | Colorimetric Method (Calcium/Magnesium Complexation with Arsenazo III) |
| Measured Parameter | Total Hardness (as CaCO₃) |
| Range | 0.3–100 mg/L as CaCO₃ |
| Repeatability | ≤4% RSD |
| Accuracy | ±10% of setpoint at 0.3–2 mg/L |
| Cycle Time | ~2 minutes per measurement |
| Calibration | Automatic on-board standardization using factory-preloaded reagent cartridges |
| Reagent Consumption | One cartridge supports ~60 days of continuous operation |
| Maintenance Interval | Pump tubing replacement every 6 months |
| Alarm Outputs | 1 SPDT relay (configurable setpoints: 0.3, 1, 2, 5, 10, 20, 50, 100 mg/L) |
| Power Supply | 115/230 VAC, 50/60 Hz |
| Certifications | UL 61010-1, CSA C22.2 No. 61010-1, CE marked per EMC and LVD directives |
| Compliance | Designed for use in industrial water treatment environments requiring GLP-aligned operational traceability |
| Brand | SANXIN Peirui |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Regional Classification | Domestic (China) |
| Model | YD300 |
| Instrument Type | Portable / Handheld Water Quality Analyzer |
| Measurement Principle | Spectrophotometric Method (Colorimetric Determination via Calcium/Magnesium Complex Formation) |
| Measured Parameter | Total Calcium and Magnesium Ion Concentration (as Total Hardness) |
| Measurement Range | 0–10 mmol/L (as CaCO₃ equivalent) |
| Repeatability | ≤ ±5% FS |
| IP Rating | IP67 |
| Display | Backlit LCD with Blue Illumination |
| Temperature Compensation | Automatic, 5–50 °C |
| Temperature Range | 0–60.0 °C (±0.5 °C accuracy) |
| Resolution | 0.01 / 0.1 unit (user-selectable per hardness scale) |
| Units Supported | mmol/L, mg/L (CaCO₃), mg/L (CaO), mmol/L (Boiler), mg/L (Ca), °fH (French), °dH (German), °eH (English) |
| Calibration Solutions | B1, B2, B3 standard kits included |
| Power | Battery-operated (low-voltage indicator) |
| Auto Functions | Auto-calibration, auto-zero, auto-hold, auto-shutdown, real-time temperature compensation |
| Brand | Jilin University & Little Swan |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Regional Classification | Domestic (China) |
| Model | GDYS-800M |
| Instrument Type | Portable / Handheld Water Quality Analyzer |
| Detection Principle | Spectrophotometry |
| Measurable Parameters | Free Chlorine, Chlorine Dioxide, COD (Permanganate Index), Total Hardness (as CaCO₃), Color, Turbidity, and 32 additional routine water quality indicators |
| Measurement Ranges | Free Chlorine: 0–5 mg/L |
| Total Hardness (as CaCO₃) | 0–500 mg/L |
| Photometric Stability | ≤0.005 Abs/h |
| Wavelength Options | 380, 430, 470, 520, 538, 595, 630 nm (configurable per parameter set) |
| Light Source | High-brightness LED |
| Detector | Integrated Photodiode Sensor |
| Sample Cell | Cylindrical Glass Cuvettes and Standard Glass Cuvette (10 mm pathlength) |
| Operating Environment | 5–40 °C |
| Display | 12-inch Multi-touch LCD |
| Connectivity | Ethernet, USB 2.0, Wi-Fi 802.11 b/g/n |
| Power Supply | AC Adapter (100–240 V) + Rechargeable Li-ion Battery (≥8 h continuous operation) |
| Data Output | Built-in Thermal Printer, CSV Export, Cloud Sync via Secure HTTPS API |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | ZDY-502 |
| Instrument Type | Benchtop Karl Fischer Coulometric & Volumetric Moisture Titrator |
| Measurement Principle | Coulometric and Volumetric Karl Fischer Titration |
| Measurable Parameters | Water Content |
| Measurement Range | 0.1 mg – 250 mg H₂O |
| Repeatability | ±0.5% RSD |
| Data Storage Capacity | 200 measurement records |
| Compliance | GLP-compliant data handling |
| Interface | USB + RS232 |
| Software Support | Dedicated PC control software with audit trail capability |
| Safety Features | Anti-spill titration cup, reagent containment system, anti-siphon waste bottle, automated reagent mixing and rinsing |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | DZS-708L |
| Instrument Type | Laboratory Water Quality Analyzer |
| Detection Principle | Electrochemical Sensing |
| Measured Parameters | pH, ORP, mV, pX, Ion Concentration, Conductivity, Resistivity, TDS, Salinity, Ash Content, Dissolved Oxygen (DO) Concentration & Saturation, Temperature |
| Measurement Ranges | pH: −2.000–20.000 |
| pX | 0.000–14.000 |
| ORP | ±1999.99 mV |
| Ion Concentration | 0–19990 (units selectable: pX, mol/L, mmol/L, g/L, mg/L, µg/L) |
| Repeatability | pH/pX ≤ ±0.002 |
| Brand | LeiCi |
|---|---|
| Origin | Shanghai, China |
| Model | DZS-708T |
| Instrument Type | Laboratory Water Quality Analyzer |
| Detection Principle | Electrochemical Method |
| Measurable Parameters | pH, Conductivity, Dissolved Oxygen (DO), Ion Concentration (e.g., Na⁺, K⁺, NH₄⁺, Cl⁻, F⁻) |
| Measurement Ranges | pH/pX: (0.000–14.000) |
| DO | (0.00–50.00) mg/L |
| Repeatability | ±3% |
| IP Rating | IP54 |
| Compliance | GLP, GMP-supportive data integrity architecture |
| Connectivity | RS-232, USB, LIMS-compatible, optional autosampler interface |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | DZB-712 |
| Instrument Type | Portable/Handheld Water Quality Analyzer |
| Detection Principle | Electrochemical Method |
| Measured Parameters | pH (−2.00–20.00), mV (−2000.0–2000.0) |
| Repeatability | pH ≤ ±0.01 pH |
| IP Rating | IP65 |
| Built-in Modules | pH/pX, Conductivity, Dissolved Oxygen (DO) |
| Temperature Compensation | Automatic (℃/°F selectable) |
| Data Storage | 500 sets per parameter |
| Compliance | GLP-compliant data traceability |
| Interface | USB, RS-232 |
| Power | Rechargeable Li-ion battery |
| Brand | Macherey-Nagel |
|---|---|
| Origin | Germany |
| Model | PF-12 Plus |
| Instrument Type | Portable / Handheld Water Quality Analyzer |
| Detection Principle | Colorimetric Method |
| Measurable Parameters | Ni, Cu, Cr, COD, Ammonia-N, Total Phosphorus, Total Nitrogen, Turbidity (1–1000 NTU), Residual Chlorine, and up to 60 parameters |
| Optical System | Single-beam filter photometer with 7-position filter wheel (345, 436, 470, 540, 585, 620, 690 nm) + optional 860 nm LED for turbidity |
| Wavelength Accuracy | ±2 nm |
| Spectral Bandwidth | 10–12 nm |
| Photometric Range | ±3 A |
| Photometric Accuracy | ±1% |
| Stability | <0.002 A/h |
| Sample Cell | 16 mm round cuvette |
| Data Storage | 1000 measurements, GLP-compliant |
| Display | Backlit LCD (64×128 pixels) |
| Interface | USB 2.0 |
| Protection Rating | IP68 |
| Operating Temperature | 10–40 °C, RH ≤80% |
| Power Supply | USB bus power, AA alkaline/rechargeable batteries, or 12 V automotive adapter |
| Dimensions | 215 × 100 × 65 mm |
| Weight | 0.7 kg |
| Certification | CE |
| Brand | Leichi |
|---|---|
| Origin | Shanghai, China |
| Model | DZS-708T-A |
| Instrument Type | Laboratory Water Quality Analyzer |
| Detection Principle | Colorimetric Method (for optional add-on modules) |
| Measured Parameters | pH, pX (Ion Selective Electrode), mV, ORP, Conductivity, Resistivity, TDS, Salinity, Ash Content, Temperature |
| pH Range | 0.00–14.00 |
| Repeatability | ≤0.5% |
| Display | 7-inch color TFT LCD touchscreen |
| IP Rating | IP54 |
| Interface | RS-232, USB, USB host (U-disk, barcode scanner support) |
| Data Storage | 1000 datasets with GLP-compliant metadata |
| Calibration | Up to 6-point pH/pX |
| Temp Compensation | Automatic (linear, nonlinear, pure water, seawater, user-defined reference temp: 5.0–25.0 °C) |
| Electrode Diagnostics | Built-in |
| Software Compliance | Supports GMP audit trail, user-level access control (3-tier), method/data management, firmware upgrade |
| Brand | YSI |
|---|---|
| Origin | USA |
| Model | ProQuatro |
| Instrument Type | Portable/HANDHELD Water Quality Analyzer |
| Detection Principle | Electrochemical Sensors |
| Measured Parameters | pH, Dissolved Oxygen (DO), Electrical Conductivity (EC), Salinity, Total Dissolved Solids (TDS), Temperature |
| Measurement Ranges | pH: 0–14.00 |
| DO | 0–50.0 mg/L |
| EC | 0–200,000 µS/cm |
| Salinity | 0–70 ppt |
| Temperature | −5 to +60 °C |
| Repeatability | pH: ±0.02 pH |
| DO | ±0.2 mg/L |
| EC | ±0.5% of full scale |
| Temperature | ±0.1 °C |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | DGB-401 |
| Instrument Type | Portable/HANDHELD Water Quality Analyzer |
| Detection Principle | Spectrophotometry (LED-based, 420 nm / 470 nm / 620 nm / 650 nm) |
| Measured Parameters | Ammonia-Nitrogen, High-Range COD, Low-Range COD, Total Phosphorus, Total Nitrogen |
| Ammonia-Nitrogen Range | 0.000–10.00 mg/L |
| Repeatability | ±3% |
| IP Rating | IP65 |
| Data Storage | 1,000 total entries (200 per parameter) |
| Power Supply | Rechargeable Li-ion battery with USB/PC charging and low-voltage warning |
| Interface | RS-232 printer port, USB for PC communication |
| Compliance | GLP-compliant data traceability, audit-ready data management |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | DZB-718L |
| Instrument Type | Portable/Handheld Water Quality Analyzer |
| Measurement Parameters | pH, pX (Ion Selective Electrode), ORP, Ion Concentration, Conductivity, TDS, Salinity, Resistivity, Dissolved Oxygen (DO), DO Saturation, Temperature |
| Calibration Support | Up to 8-point pH calibration with auto-recognition of GB, DIN, NIST, Merck, and JIS buffers |
| Electrode Management | Up to 5 electrodes per type (pH, ion-selective, conductivity, DO) |
| Data Storage | 1000 datasets per parameter module, GLP-compliant |
| Display | 4.3-inch TFT capacitive touch screen |
| Connectivity | USB interface for PC communication and firmware updates |
| Language Options | English and Chinese |
| Temperature Compensation | Manual and automatic (for pH, conductivity, DO) |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (China) |
| Model | DZS-706F |
| Instrument Type | Portable / Handheld Water Quality Analyzer |
| Detection Principle | Spectrophotometry (for COD, TP, TN, NH₃-N) + Electrochemical Sensing (pH/pX, Conductivity, Dissolved Oxygen) |
| Measured Parameters | Total Phosphorus (TP), Low-Range COD (5–200 mg/L), High-Range COD (200–2000 mg/L), Total Nitrogen (TN), Ammonia Nitrogen (NH₃-N), pH, mV, Ion Concentration, Conductivity, Resistivity, TDS, Salinity, Dissolved Oxygen (DO), DO Saturation, Temperature |
| Measurement Ranges | TP: 0.01–20 mg/L |
| COD (Low) | 5–200 mg/L |
| COD (High) | 200–2000 mg/L |
| TN | 0.1–100 mg/L |
| NH₃-N | 0.02–50 mg/L |
| Repeatability | ≤ ±5% |
| Brand | WTW |
|---|---|
| Origin | Germany |
| Model | Multi 3620 |
| Instrument Type | Portable / Handheld Water Quality Analyzer |
| Detection Parameters | pH, ORP, Dissolved Oxygen (DO), Oxygen Saturation, Partial Pressure of Oxygen (pO₂), Conductivity, Resistivity, Salinity, TDS, Turbidity |
| Measurement Range (Dissolved Oxygen) | 0–50 mg/L |
| Display | Graphical LCD |
| Data Storage Capacity | Up to 10,000 datasets (manual + automatic) |
| Protection Rating | IP67 |
| Power Supply | 4×1.5 V AA alkaline or 4×1.2 V NiMH rechargeable batteries, or USB-powered operation |
| Interface | Micro-USB-B, USB-A (for memory card and printer connectivity) |
| Probe Communication | Digital IDS (Intelligent Digital Sensor) interface with wireless-capable probe pairing |
| Sensor Compatibility | MPP 910 IDS (single-parameter), MPP 930 IDS (triple-parameter, including depth measurement up to 100 m with pressure & density compensation for seawater) |
| Depth Resolution | 0.05 m |
| Depth Accuracy | ±0.25 m |
| Housing Material | POM polymer and stainless steel |
| Brand | Hach |
|---|---|
| Origin | USA |
| Model | SP510 |
| Detection Principle | Colorimetric (EDTA Complexometric Titration) |
| Measurement Range | 0.3–100 mg/L as CaCO₃ |
| Accuracy | ±10% of setpoint (0.3–2 mg/L), ±4% of setpoint (5–100 mg/L) |
| Cycle Time | ~2 minutes per measurement |
| Alarm Output | 1 SPDT relay |
| Power Supply | 115/230 VAC, 50/60 Hz |
| Certifications | UL, CSA, CE |
| Reagent Consumption | Up to 2 months per reagent pack |
| Maintenance Interval | Pump tube replacement every 6 months |
| Calibration | Automatic on-demand and scheduled calibration |
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