Water Quality Analysis
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| Brand | Water Doctor (DoctorWater) |
|---|---|
| Origin | Hunan, China |
| Model | Dr-W900 |
| Instrument Type | Portable |
| Biological Indicator | Bioluminescent Bacteria (Aliivibrio fischeri, Photobacterium phosphoreum, Vibrio qinghaiensis) |
| Operating Ambient Temperature | 10–40 °C |
| Reagent Storage Temperature | 2–8 °C (adjustable, ±1 °C accuracy) |
| Detection Temperature Control | 15–25 °C (adjustable, ±1 °C accuracy) |
| Incubation Capacity | 10 sample positions with independent temperature control |
| Detection Time | ≤15 minutes post-sample preparation |
| Compliance | GB/T 15441–1995, ISO 11348-3 |
| Brand | Water Doctor |
|---|---|
| Origin | Hunan, China |
| Model | Dr-WCI |
| Instrument Type | Benchtop Laboratory Analyzer |
| Measurement Principle | DPD Colorimetric Spectrophotometry (ASTM D1253, ISO 7393-2, EPA 330.5) |
| Measuring Parameter | Free Chlorine (Residual Chlorine) |
| Range | 0.02–2.00 mg/L as Cl₂ |
| Accuracy | ≤ ±5% of reading |
| Repeatability | ≤ ±2% RSD |
| Detection Limit | 0.02 mg/L |
| Absorbance Resolution | 0.001 Abs |
| Wavelength Range | 330–900 nm |
| Wavelength Accuracy | ±5 nm |
| Optical Stability | ≤ ±0.005 Abs / 20 min |
| Display | 8-inch HD capacitive touchscreen |
| Language Support | English & Chinese |
| Sample Holders | Rotatable 16-mm cuvette position + fixed 25-mm cuvette position |
| Calibration Modes | Blank, Factor, and Multi-point Curve Calibration |
| Data Storage | Up to 1,000,000 measurement records |
| Connectivity | USB port for data export |
| Output Modes | Concentration (mg/L) or Absorbance (Abs) |
| Printer | Built-in thermal printer |
| Housing Material | Flame-retardant ABS with chemical resistance |
| Dimensions (W×D×H) | 392 × 315 × 170 mm |
| Light Source | Long-life imported cold LED (rated >100,000 hours) |
| Brand | WAYEAL |
|---|---|
| Origin | Anhui, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Country of Origin | China |
| Model | WMS1800 |
| Pricing | Available upon Request |
| Brand | WAYEAL |
|---|---|
| Origin | Anhui, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Country of Origin | China |
| Model | WMS1800x |
| Pricing | Available upon Request |
| Brand | WAYEAL |
|---|---|
| Origin | Anhui, China |
| Manufacturer Type | Direct Manufacturer |
| Region Classification | Domestic (China) |
| Model | WS1503 |
| Price Range | USD 7,000 – 14,000 |
| Brand | WAYEAL |
|---|---|
| Origin | Anhui, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Country of Origin | China |
| Model | WS1504 |
| Pricing | Available upon Request |
| Brand | WAYEAL |
|---|---|
| Origin | Anhui, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | WS1505 |
| Pricing | Upon Request |
| Measurement Method | Alkaline Potassium Persulfate Digestion – UV Spectrophotometry |
| Measurement Range | 0–200.0 mg/L (expandable) |
| Accuracy | ±5% |
| Brand | WAYEAL |
|---|---|
| Origin | Anhui, China |
| Manufacturer | WAYEAL Instrument Co., Ltd. |
| Model | WS1801 |
| Instrument Type | Online Automatic Water Sampler |
| Sampling Method | Exceedance-triggered Retention Sampling |
| Single Sample Volume | 10 mL to 1000 mL |
| Sampling Volume Accuracy | ±7% (at 200 mL retention volume) |
| Sampling Interval | Adjustable from 1 min to 9999 min |
| Brand | Wilks |
|---|---|
| Origin | USA |
| Model | InfraCal2 |
| Instrument Type | Portable |
| Principle | Infrared Spectrophotometry (C–H Stretch Absorption at ~2960 cm⁻¹) |
| Measurement Range | 0.3–1000 ppm (as oil) |
| Detection Limit | 0.3 ppm |
| Accuracy | ±0.3 ppm (at low end, per ASTM D7066) |
| Resolution | 2 ppm |
| Data Storage | Internal memory for ≥500 results |
| Power | Rechargeable Li-ion battery |
| Interface | USB 2.0 for data export |
| Solvent Consumption per Test | 0.2 mL |
| Calibration | Multi-point, user-definable curves for TOG, FOG, TPH |
| Brand | SYSTEA |
|---|---|
| Model | WIZ |
| Origin | Zhejiang, China |
| Type | Portable In-situ Multiparameter Nutrient Analyzer |
| Measurement Principle | Micro-circulation Flow Analysis with Integrated Fiber-optic Colorimetry and Fluorescence Detection |
| Supported Parameters | Nitrate, Nitrite, Ammonia, Phosphate, Silicate (5 Nutrient Species Simultaneously) |
| Reagent Consumption | 0.12–0.24 mL per analysis |
| Reaction Volume | 1.5 mL micro-circulation reactor |
| Waste Management | Dual-path separation for toxic vs. non-toxic effluents |
| Filtration Options | Self-cleaning filter modules with 0.1 µm or 25 µm pore size |
| Power Supply | 13 V DC (solar-compatible) |
| Remote Operation | Full bidirectional control & status telemetry via external PC |
| Compliance | Designed for ISO 5667-3, ASTM D3370, and EPA Method 353.2–compatible deployment environments |
| Enclosure Rating | IP68 submersible housing (optional buoy-integrated mounting) |
| Brand | WAYEAL |
|---|---|
| Origin | Anhui, China |
| Manufacturer Type | Direct Manufacturer |
| Product Origin | Domestic (China) |
| Model | WS1501 |
| Pricing | Available Upon Request |
| Brand | WAYEAL |
|---|---|
| Origin | Anhui, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | WS1506 |
| Measurement Principle | Potassium Permanganate Oxidation with ORP Endpoint Detection |
| Instrument Type | Online Analyzer |
| Range | 0–25.0 mg/L (expandable) |
| Repeatability | ≤5% RSD |
| Accuracy | ±10% of reading |
| LOD | ≤1.5 mg/L |
| Resolution | 0.01 mg/L |
| Single Analysis Time | 30–9999 min |
| Brand | WTW |
|---|---|
| Origin | Germany |
| Model | C3/25 |
| Instrument Type | Portable COD Analyzer Compatible |
| Measurement Range | 10–150 mg/L |
| Accuracy | ±5% (vs. certified COD standard) |
| Repeatability | ≤3% RSD |
| LOD | 10 mg/L |
| Analysis Time | 2 hours |
| Batch Capacity | 25 tests per kit |
| Compliance | EPA 410.4 & DIN 38409-H41 validated methods |
| Brand | WTW |
|---|---|
| Origin | Germany |
| Model | 1P22-1 |
| Digestion Method | Rapid Thermal Digestion |
| Heating Module | Single Aluminum Block |
| Batch Capacity | 24 positions |
| Temperature Range | 25–170 °C (adjustable in 1 °C increments) |
| Temperature Accuracy | ±1 °C |
| Sample Tube Compatibility | 24 × 16 mm OD reaction tubes |
| Timer Control | Programmable, microprocessor-controlled timing |
| Power Supply | 230 VAC ±15%, 50 Hz or 115 VAC ±15%, 60 Hz |
| Power Consumption | 560 W |
| Safety Certification | CE, cETLus, GS, DIN VDE 0700 Part 1 (11/90), Protection Class I |
| Dimensions (W×H×D) | 256 × 185 × 315 mm |
| Weight | 3.6 kg |
| Interface | RS232 serial output + 2 banana sockets (for optional TFK CR temperature probe or AK CR/P, CR/PC adapters) |
| Brand | WTW |
|---|---|
| Origin | Germany |
| Model | CR3200 |
| Digestion Method | Rapid Thermal Digestion |
| Heating Module | Single Aluminum Block |
| Batch Capacity | 24 × 16 mm Reaction Tubes |
| Temperature Range | Adjustable from Ambient to 170 °C in 1 °C Increments |
| Temperature Accuracy | ±1 °C ±1 Digit |
| Power Supply | 230 VAC 50 Hz ±15% / 115 VAC 60 Hz ±15% |
| Max. Power Consumption | 560 W |
| Safety Compliance | DIN VDE 0700 Part 1 (11/90), CE, cETLus, GS |
| Dimensions (W×D×H) | 256 × 185 × 315 mm |
| Weight | Approx. 3.6 kg |
| Interface | RS232 Serial Port + 2 Banana Sockets (for TFK/AK CR/P or CR/PC Sensors) |
| Predefined Programs | 8 Fixed + 8 User-Defined (0–180 min, Ambient–170 °C) |
| Brand | WTW |
|---|---|
| Origin | Germany |
| Model | 821220 |
| Measurement Principle | Ion-Selective Electrode (ISE) Method |
| Accuracy | ±5% of reading ±0.2 mg/L NH₄–N |
| Detection Limit | –0.03 mg/L NH₄–N |
| Response Time | ≤3 min |
| Application | Online continuous monitoring for wastewater and surface water |
| Compliance | Designed for use with WTW TresCon®+ OA110 Ammonia Analyzer |
| Brand | WTW |
|---|---|
| Origin | Germany |
| Model | FDO 925 |
| Instrument Type | Portable |
| Measurement Principle | Optical Fluorescence Quenching |
| Range | 0–20 mg/L DO |
| Accuracy | ±0.5% of reading ±0.05 mg/L DO |
| Repeatability | ≤0.1% of reading |
| Detection Limit | 0.01 mg/L DO |
| Response Time (t₉₀) | <30 s |
| Temperature Range | 0–50 °C |
| IP Rating | IP68 (2.5 bar) |
| Cable Options | 1.5 / 3 / 6 / 25 m |
| Electrode Body Material | POM |
| Cap Material | PVC, silicone, PMMA |
| Temperature Sensor | Integrated NTC30 (30 kΩ at 25 °C) |
| Weight | 180 g (with 3 m cable) |
| Brand | WTW |
|---|---|
| Origin | Germany |
| Model | inoLab® Multi 9310 |
| Measurement Parameters | pH, ORP, Conductivity, Dissolved Oxygen (optical fluorescence), Temperature |
| Sensor Interface | IDS (Intelligent Digital Sensors) |
| Compliance | GLP, AQA |
| Data Storage | 5,000 readings with timestamp, user ID, and sensor serial number |
| Connectivity | Mini USB-B |
| Power Supply | AC adapter or 4 × AA batteries |
| Calibration Memory | Up to 10 calibrations with scheduling (1–999 days) |
| Temperature Compensation | Automatic for all parameters except ORP |
| Brand | WTW |
|---|---|
| Origin | Germany |
| Model | inoLab Oxi 7310 |
| Instrument Type | Laboratory BOD Analyzer |
| Measurement Principle | Electrochemical Dissolved Oxygen (DO) Method with StirrOx-G Self-Stirring Sensor |
| Measurement Range | DO: 0.00–20.00 mg/L (resolution: 0.01/0.1 mg/L) |
| Saturation | 0–200.0 % (0.01/0.1 %) |
| Partial Pressure of O₂ | 0–200.0 mbar (0.01/0.1 mbar) |
| Accuracy | ±0.5% of reading for DO, saturation, and pO₂ |
| Data Storage | 5,000 automatic / 500 manual entries |
| Interface | Mini-USB |
| Display | Backlit LCD with graphical capability |
| Power Supply | 4 × 1.5 V alkaline batteries, USB power, or universal AC adapter |
| Battery Life | up to 800 h (no backlight), 100 h (continuous backlight) |
| Compliance | GLP/AQA-compliant data logging with audit trail support |
| Brand | WTW |
|---|---|
| Origin | Germany |
| Model | Oxi 7310 |
| Instrument Type | Benchtop Laboratory DO Meter |
| Measurement Principle | Electrochemical (Clark-type Polarographic Sensor) |
| Range | 0.00–20.00 mg/L |
| Accuracy | ±0.5% of reading (0.00–20.00 mg/L) |
| Repeatability | ≤±0.5% |
| Detection Limit | 0.10 mg/L |
| Temperature Range | −5.0 to +105.0 °C (±0.1 °C) |
| Saturation Range | 0.0–200.0 % (±0.5%) and 0.0–600 % (±0.5%) |
| Partial Pressure Range | 0–200.0 hPa / 0–1250 hPa |
| Data Storage | 500 manual entries / 5000 auto-logged records |
| Interface | Micro-USB |
| GLP Compliance | Yes (time-stamped, user-ID, probe serial logging, audit-ready CSV export) |
| Power Supply | 4×AA alkaline or NiMH batteries or AC adapter |
| Origin | Imported |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Model | IQ Sensor Net |
| Instrument Type | Online Water Quality Analyzer |
| Measurable Parameters | pH, ORP, Temperature, Dissolved Oxygen (DO), Conductivity, Turbidity, Total Suspended Solids (TSS), Chemical Oxygen Demand (COD), Biochemical Oxygen Demand (BOD), Salinity, Ammonium-N (NH₄⁺-N), Nitrate-N (NO₃⁻-N), Nitrite-N (NO₂⁻-N), Total Organic Carbon (TOC), Spectral Absorption Coefficient (SAC), Phosphate (PO₄³⁻) |
| Enclosure Rating | Transmitter IP66 / Sensors IP68 |
| Communication | RS-485/232, MODBUS RTU, PROFIBUS DP |
| Analog Outputs | ≥6 × 4–20 mA |
| Relay Outputs | ≥6 |
| Digital Signal Transmission Distance | Up to 1000 m over 2-wire shielded cable |
| Power Supply | 24 VDC via signal cable |
| Sensor Auto-Recognition | Yes |
| Max. Connected Sensors | 20 |
| Cleaning Technology | Integrated ultrasonic cleaning (turbidity/TSS sensors) |
| Measurement Principle | Potentiometric (pH/ORP), Optical luminescence (DO), 4-electrode conductivity, 90° scattered light turbidimetry (FNU), UV-VIS absorbance (COD/SAC/NO₃⁻/NH₄⁺/PO₄³⁻), respirometric (BOD), catalytic oxidation (TOC) |
| 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 | WTW |
|---|---|
| Origin | Germany |
| Model | Multi 3630 IDS |
| Instrument Type | Portable |
| pH Range | 0.000–14.000 |
| Dissolved Oxygen | 0.00–20.00 mg/L |
| Conductivity | 10 µS/cm – 2000 mS/cm |
| Turbidity | 0–4000 FNU |
| Data Storage Capacity | Up to 10,000 datasets |
| Display | Graphical LCD |
| Protection Rating | IP67 |
| Power Supply | 4×AA alkaline or rechargeable NiMH batteries, or USB bus power |
| Interface | Micro-USB-B, USB-A (for memory card and printer) |
| Probe Communication | Digital IDS (Intelligent Digital Sensor) wireless-capable architecture |
| Depth Measurement (with MPP 930 IDS) | 0.05–100 m (pressure- and density-compensated for seawater) |
| Temperature Compensation | Integrated, automatic |
| [Brand | WTW |
|---|---|
| Origin | Germany |
| Model | 821210 |
| Instrument Type | Online |
| Measurement Principle | Gas-Sensing Ion-Selective Electrode (ISE) |
| Range | NH₄⁺–N: 0.1–1000 mg/L |
| Accuracy | ±5% of reading |
| Detection Limit | 0.1 mg/L NH₄⁺–N |
| Response Time | <3 minutes |
| Operation Mode | Continuous online monitoring |
| Compliance | Designed for integration with WTW TresCon®+ OA110 and TresCon® UNO A110 analyzers] |
| Brand | WTW |
|---|---|
| Origin | Germany |
| Model | 821210 |
| Instrument Type | Online Sensor Module |
| Measurement Principle | Gas-Sensing Ammonia Electrode (NH₃-selective membrane with pH detection) |
| Range | 0.02–1000 mg/L NH₄⁺-N |
| Accuracy | ±2% of reading or ±0.02 mg/L (whichever is greater) |
| Detection Limit | 0.02 mg/L NH₄⁺-N |
| Response Time | ≤2 minutes |
| Compliance | Designed for integration with WTW TresCon and TresCon UNO online analyzers |
| Brand | WTW |
|---|---|
| Model | Oxi 3310 |
| Type | Portable |
| Measurement Principle | Galvanic Cell Electrochemical Probe |
| Range | 0.00–19.99 mg/L (conc.), up to 90 mg/L (extended) |
| Accuracy | ±0.5% of reading |
| Repeatability | 0.05% |
| Detection Limit | 0.01 ppb |
| Temperature Range | –5.0 to 105.0 °C (±0.1 °C) |
| Auto-Temperature Compensation (ATC) | Yes |
| Calibration | 1–5-point, automatic recognition of 16 DIN/NIST buffers |
| Data Storage | 5000 automatic + 200 manual entries |
| IP Rating | IP66/IP67 |
| Battery Life | Up to 1000 h (display off), 150 h (backlight on) |
| Interface | Waterproof USB |
| Built-in Barometric Pressure Sensor | Yes |
| Brand | WTW |
|---|---|
| Origin | Germany |
| Model | Oxi 3310 |
| Instrument Type | Portable |
| Measurement Principle | Electrochemical Clark-type Polarographic Probe |
| DO Range | 0.00–19.99 mg/L (extended up to 90 mg/L) |
| Accuracy | ±0.5% of reading |
| Saturation Range | 0.0–199.9% (extended up to 600%) |
| Partial Pressure Range | 0–199.9 hPa / 0–1250 hPa |
| Temperature Range | −5.0 to +105.0 °C |
| Temp. Accuracy | ±0.1 °C |
| Data Storage | 200 manual + 5000 auto-log entries |
| Logging Interval | 1 s – 60 min |
| IP Rating | IP66/IP67 |
| Power Supply | 4 × 1.5 V alkaline or 4 × 1.2 V rechargeable batteries |
| Battery Life | up to 1000 h (150 h with backlight enabled) |
| Interface | Waterproof USB |
| Calibration | Automatic OxiCal protocol with electrode status feedback |
| ATC | Integrated automatic temperature compensation |
| CMC | Continuous Measurement Control with real-time validity indication |
| Brand | WTW |
|---|---|
| Origin | Germany |
| Model | Oxi 3310 |
| Instrument Type | Portable |
| Measurement Principle | Electrochemical Clark-type Polarographic Sensor |
| DO Range | 0.00–19.99 mg/L (extended range up to 90 mg/L) |
| Accuracy | ±0.5% of reading |
| Saturation Range | 0.0–199.9% (extended to 600%) |
| Partial Pressure Range | 0–199.9 hPa / 0–1250 hPa |
| Temperature Range | −5.0 to +105.0 °C (±0.1 °C) |
| Data Storage | 200 manual + 5,000 automatic records |
| IP Rating | IP66/IP67 |
| Power Supply | 4 × 1.5 V alkaline or 4 × 1.2 V rechargeable batteries |
| Battery Life | up to 1000 h (150 h with backlight enabled) |
| Interface | Waterproof USB 2.0 |
| Calibration | Automatic timer-based OxiCal protocol with CellOx/DurOx probes |
| Temperature Compensation | ATC (Automatic Temperature Compensation) |
| Brand | WTW |
|---|---|
| Origin | Germany |
| Model | OxiTop-i IS6 |
| Instrument Type | Laboratory BOD Analyzer |
| Measurement Principle | Pressure Difference Method (Mercury-Free Pressure Sensor) |
| Measurement Range | 0–4000 mg/L |
| Detection Limit | ≤1 mg/L |
| Accuracy | ±10% (relative to certified reference standards) |
| Measurement Duration | 2–28 days (user-definable incubation period) |
| Incubation Temperature | 20 °C default, adjustable from 15–30 °C |
| Repeatability | ≤5% RSD |
| Channel Capacity | 6 independent measurement channels per unit |
| Compliance | CE, EMC Directive 2014/30/EU |
| Power Supply | Included |
| Brand | WTW |
|---|---|
| Origin | Germany |
| Model | OxiTop® Control B/BM Soil Respiration Analyzer |
| Measurement Principle | Pressure-based CO₂ consumption/respiration monitoring via headspace oxygen depletion |
| Container Options | MG 1.0 (1000 mL) or PF 45/500 (500 mL) sealed vials with integrated OxiTop®-C stoppers or AD/SK adapters |
| Data Logging | Autonomous, battery-powered, up to 60 days continuous measurement per cycle |
| Output | mg O₂/L·d or µmol CO₂/g soil·h (calculated) |
| Compliance | Designed for ISO 11274, ISO 17402, OECD 207, ASTM D5988, and EU Regulation (EC) No 1107/2009 biodegradation testing protocols |