- All
- Favorite
- Popular
- Most rated
| Brand | WTW |
|---|---|
| Origin | Germany |
| Model | photoLab® 7100 VIS |
| Wavelength Range | 320–1100 nm |
| Optical Design | Dual-Beam Reference Channel |
| Light Source | Xenon Pulse Lamp |
| Display | High-Resolution Color TFT Touchscreen |
| Connectivity | USB, Ethernet, PDF Export |
| Software | SpectroLab Data Management Suite (GLP-Compliant) |
| Compliance | ISO/IEC 17025, ASTM E275, USP <857>, FDA 21 CFR Part 11 Ready |
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | Pro30 |
| Pricing | Available Upon Request |
| Brand | YSI |
|---|---|
| Origin | USA |
| Model | YSI 58 |
| Type | Portable |
| Measurement Principle | Clark-type polarographic electrode |
| DO Range (mg/L) | 0–20 mg/L |
| DO Resolution (mg/L) | 0.01 mg/L |
| DO Accuracy (mg/L) | ±0.03 mg/L |
| DO Range (% air saturation) | 0–200% |
| DO Resolution (% sat) | 0.1% |
| DO Accuracy (% sat) | ±0.3% |
| Temperature Range | −5 to +45 °C |
| Temperature Resolution | 0.1 °C |
| Temperature Accuracy | ±0.3 °C |
| Temp Compensation Range | 0 to +45 °C |
| Salinity Compensation Range | 0–40 ppt |
| Salinity Compensation Accuracy | ±0.3% of compensated reading ±1 digit |
| Recorder Output | 0–1 V DC (0.5 V = 1 digit), ±0.4% full scale ±1 least significant digit, min. load 50 kΩ |
| Power | 4 × D-cell batteries (Zn-C or alkaline), ~1000 h life |
| Dimensions | 21.6 × 28.0 × 9.5 cm |
| Weight | 1.90 kg |
| Brand | WTW |
|---|---|
| Model | TresCon COD-3250 |
| Type | Online Analyzer |
| Measurement Principle | Potassium Dichromate Digestion (High-Temperature Closed-System) |
| Wavelength | 620 nm |
| Range | 20–5000 mg/L COD |
| Accuracy | ≤ ±10% at ≥30 mg/L |
| Repeatability | ≤ ±3% |
| Detection Limit | Not Specified |
| Cycle Time | 35 min per sample |
| Sample Throughput | 1 sample per cycle |
| Compliance | Designed to meet GB 11914-1989 and HJ 399-2007 requirements |
| Brand | Bellingham + Stanley |
|---|---|
| Origin | United Kingdom |
| Model | RFM340-T |
| Product Type | Benchtop Refractometer |
| Temperature Control | Peltier-based, programmable (5–40 °C, ±0.01 °C stability) |
| Display | 7-inch capacitive touchscreen |
| Measurement Range | Refractive Index (nD) 1.320000–1.580000 |
| Resolution | 0.000001 RI / 0.001 °Brix |
| Accuracy | ±0.00002 RI / ±0.01 °Brix (at 20 °C, sucrose standard) |
| Sample Volume | 0.5–2.0 mL |
| Prism Material | Sapphire-coated optical glass |
| Data Storage | >8,000 measurements with timestamp, user ID, method ID, and temperature log |
| Compliance | FDA 21 CFR Part 11 (electronic signatures, audit trail), GLP/GMP-ready |
| Connectivity | USB 2.0 host/device, optional Ethernet |
| Language Support | 12 UI languages (English, German, French, Spanish, Italian, Portuguese, Dutch, Polish, Czech, Turkish, Chinese, Japanese) |
| Brand | YSI |
|---|---|
| Origin | USA |
| Model | YSI 6920DW / 600DW |
| Residual Chlorine | 0–3 mg/L (±15% of reading or ±0.05 mg/L, whichever is greater |
| resolution | 0.01 mg/L) |
| Conductivity | 0–100 mS/cm (±0.5% of reading + 0.001 mS/cm |
| resolution | 0.001–0.1 mS/cm, range-dependent) |
| Temperature | −5 to +70 °C (±0.15 °C |
| resolution | 0.01 °C) |
| pH | 0–14 (±0.2 |
| resolution | 0.01) |
| ORP | −999 to +999 mV (±20 mV |
| resolution | 0.1 mV) |
| Turbidity | 0–1000 NTU (±2% of reading or ±0.3 NTU, whichever is greater |
| resolution | 0.1 NTU) |
| Data Storage | Up to 150,000 readings |
| Power Options | Rechargeable battery or AC adapter |
| Compliance | US EPA verified (residual chlorine sensor), USGS & DoD validated, ETVP-certified (Environmental Technology Verification Program) |
| Brand | YSI |
|---|---|
| Origin | USA |
| Model | EXO NitraLED |
| Instrument Type | Submersible Optical Nitrate Analyzer for Freshwater |
| Dimensions | 21.3 cm (L) × 1.5 cm (D) |
| Weight | 0.07 kg |
| Measurement Unit | NO₃–N (mg/L) |
| Light Source | Dual UV LED (235 nm & 275 nm) |
| Optical Path Length | 10 mm |
| Range | 0–10 mg/L-N |
| LOD | 0.005 mg/L-N |
| Accuracy | ±0.1 mg/L-N or ±5% of reading (whichever is greater) within ±2 °C |
| T95 Response Time | <30 s |
| Drift (30-day deployment, 15-min logging) | ≤0.2 mg/L-N |
| Repeatability | ≤2% CV |
| Operating Temp | 5–35 °C |
| Storage Temp | −20–80 °C |
| Depth Rating | 250 m |
| Warranty | 2 years |
| Compatibility | EXO2 and EXO3 multiparameter sondes |
| Brand | WTW |
|---|---|
| Origin | Germany |
| Model | photoLab® 7600 UV-VIS |
| Wavelength Range | 190–1100 nm |
| Optical Technology | Dual-beam reference channel with pulsed xenon lamp |
| Measurement Method | OptRF (Optical Reference-Free) for COD and nitrate/nitrite |
| Connectivity | USB, Ethernet, PDF export |
| Software Compliance | GLP-compliant data logging, LIMS-ready export |
| Regulatory Alignment | Designed for ISO 7027, ASTM D1253, DIN 38405-43, USP <85>, EPA Method 410.4 (COD optical correlation), EN ISO 15681-2 (phosphate), EN ISO 10303-2 (nitrate) |
| Brand | WTW |
|---|---|
| Origin | Germany |
| Model | TCU/A111 |
| Instrument Type | Online Analyzer |
| Measurement Principle | Ammonia Gas-Sensing Electrode |
| Measurement Range | 0.1–1000 mg/L NH₃–N |
| Accuracy | ≤ ±5% FS |
| Detection Limit | 0.1 mg/L NH₃–N |
| Analysis Time | 3 minutes per sample |
| Sample Throughput | 1 sample per cycle |
| Compliance | Certified per China EPA Environmental Protection Product Certification (HJ 758–2015) |
| Brand | YSI |
|---|---|
| Origin | USA |
| Model | ProQuatro |
| Instrument Type | Portable/Handheld Water Quality Analyzer |
| Measured Parameters | Dissolved Oxygen (DO), Electrical Conductivity, Specific Conductivity, Salinity, Resistivity, Barometric Pressure |
| Dimensions | 8.3 cm × 21.6 cm × 2.3 cm |
| Weight (with batteries) | 475 g |
| Power Supply | Two C-cell alkaline batteries (80 h runtime at ambient temperature, backlight off) or micro-USB power input |
| Operating Temperature | −10 °C to +60 °C |
| Storage Temperature | −20 °C to +70 °C |
| Display | Backlit graphical LCD |
| Memory Capacity | 5,000 data sets with 50 unique ID tags |
| Data Logging Modes | Single-point or continuous logging with auto-stability detection |
| Cable Options | Field cables (1, 4, 10, 20, 30 m) |
| Barometer Range | 375–825 mmHg |
| Accuracy | ±1.5 mmHg (0–50 °C) |
| Resolution | 0.1 mmHg |
| DO Membrane Response Time (T95) | 8 s (1.25 mil PE, flow = 0.15 m/s), 17 s (2.0 mil PE, flow = 0.08 m/s), 18 s (1 mil Teflon®, flow = 0.30 m/s) |
| Ingress Protection | IP67 (submersible even with battery door open) |
| Warranty | 3 years instrument, 2 years cables |
| Certifications | RoHS, CE, FCC |
| Language Support | English, Simplified/Traditional Chinese, French, German, Italian, Japanese, Norwegian, Portuguese, Spanish |
| Brand | Xylem |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | EMM550 |
| Instrument Type | Online Water Quality Analyzer |
| Buoy Construction Material | Surlyn®-based Ionomeric Foam |
| Structural Design | Modular, Symmetric Circular Hull with Integrated Ballast Chamber |
| Certified Compliance | NOAA NDBC & USCG Approved Buoy Platform |
| Deployment Class | Coastal, Estuarine, and Inland Open-Water Long-Term Monitoring |
| Brand | WTW |
|---|---|
| Origin | Germany |
| Model | Chlorine 3017M |
| Instrument Type | Online Analyzer |
| Measurement Principle | DPD Spectrophotometry |
| Measured Parameters | Free Chlorine, Total Chlorine, Chlorine Dioxide (optional reagent configuration) |
| Range | 0–5 mg/L (free or total chlorine, reagent-dependent) |
| Accuracy | ±0.03 mg/L or ±5% (whichever is greater) |
| Resolution | 0.01 mg/L |
| Detection Limit | 0.03 mg/L |
| Brand | SonTek |
|---|---|
| Origin | USA |
| Model | RiverSurveyor S5/M9 |
| Velocity Range | ±20 m/s |
| Depth Range | 0.2–15 m (S5), 0.2–80 m (M9) |
| Velocity Resolution | 0.001 m/s |
| Velocity Accuracy | ±0.25% of measured value ± 0.002 m/s |
| Cell Size | 0.02–0.5 m (S5), 0.02–4 m (M9) |
| Number of Cells | up to 128 |
| Transducer Configuration | S5 — five transducers (four 3.0 MHz at 25° tilt, one 1.0 MHz vertical) |
| Depth Accuracy | ±1% |
| Temperature Sensor Accuracy | ±0.1 °C, Resolution: 0.01 °C |
| Compass/Tilt Accuracy | Heading ±2°, Roll/Pitch ±1° |
| Internal Memory | 8 GB |
| Operating Voltage | 12–18 V DC |
| Battery Life | 8 h (standard), 4 h (with RTK GPS) |
| Max Output Rate | 2 Hz |
| Internal Sampling Rate | up to 70 Hz |
| Wireless Options | Bluetooth (60 m smartphone / 200 m laptop), Spread-Spectrum Radio (2000 m) |
| GPS Accuracy | GGA/VTG — 1 m |
| Operating Temperature | –5 to 45 °C |
| Storage Temperature | –10 to 70 °C |
| S5 Dimensions | Ø6.1 cm (top), Ø12.7 cm (bottom), H25.4 cm |
| Weight | 1.1 kg (air), –0.3 kg (water) |
| M9 Dimensions | Ø12.8 cm, H25.2 cm |
| Weight | 2.3 kg (air), –0.6 kg (water) |
| Brand | SonTek |
|---|---|
| Origin | USA |
| Model | ADV |
| Frequency Options | 5 MHz / 10 MHz / 16 MHz |
| Sampling Volume | 0.09–2.0 cm³ |
| Sampling Rate | 0.1–50 Hz |
| Measurement Distance from Transducer | 5–18 cm |
| Velocity Resolution | 0.01 cm/s |
| Velocity Accuracy | ±1% of measured value or ±0.25 cm/s (whichever is greater) |
| Max Operating Depth | 60 m (10/16 MHz), 250 m (5 MHz Delrin), 2000 m (5 MHz Stainless Steel) |
| Power Supply | 12–24 V DC |
| Power Consumption | 2.5–4 W (active), <1 mW (sleep) |
| Probe Configurations | 3D-top-view, 3D-side-view, 3D-upward-view, 2D-side-view |
| Interface | Waterproof connector, splash-proof signal processor |
| Calibration | Factory-performed, stable long-term calibration |
| Compliance | Designed for ASTM D5766, ISO 748, and USGS/USACE hydrodynamic measurement protocols |
| Brand | YSI |
|---|---|
| Origin | USA |
| Model | YSI 6600EDS |
| DO Range (sat.) | 0–500% (±2% or 2% sat., whichever greater, 0–200%) |
| DO Range (mg/L) | 0–50 mg/L (±2% or 0.2 mg/L, 0–20 mg/L) |
| Conductivity | 0–100 mS/cm (±0.5% + 0.001 mS/cm) |
| Temperature | −5 to 50 °C (±0.15 °C) |
| pH | 0–14 (±0.2) |
| ORP | −999 to +999 mV (±20 mV) |
| Salinity | 0–70 ppt (±1.0% or 0.1 ppt) |
| Depth (shallow/medium/deep) | 0–9 m (±0.018 m) / 0–61 m (±0.12 m) / 0–200 m (±0.3 m) |
| Barometric Pressure Compensated Water Level | 0–9 m (±0.003 m) |
| Turbidity | 0–1000 NTU (±2% or 0.3 NTU) |
| Chlorophyll-a | 0–400 µg/L (LOD: 0.1 µg/L |
| Rhodamine WT | 0–200 µg/L (±5% or 1.0 µg/L) |
| Brand | WTW |
|---|---|
| Origin | Germany |
| Model | TriOxmatic |
| Instrument Type | Online Water Quality Analyzer |
| Measured Parameter | Dissolved Oxygen (DO) |
| O₂ Concentration Ranges | 0.0–60.0 mg/L (TriOxmatic® 700 IQ), 0.00–20.00 mg/L (701 IQ), 0.001–2.000 mg/L (702 IQ) |
| O₂ Saturation Ranges | 0–600 %, 0.0–200.0 %, 0–110 % |
| Resolution | 0.1 mg/L / 0.01 mg/L / 0.001 mg/L |
| Response Time (t₉₀) | 180 s (700 IQ), 30 s (701/702 IQ) |
| Minimum Flow Rate | 0.05–0.3 m/s |
| Temperature Compensation | Integrated NTC, –5 to +60 °C |
| Accuracy | ±0.1 mg/L or ±1% of reading |
| Electrode Materials | Stainless Steel 316, Titanium, POM (for seawater) |
| Max. Pressure Rating | 10 bar (standard), 1 bar (F-type) |
| Power Consumption | 0.2 W |
| Diagnostics | SensReg (electrolyte depletion alarm), SensLeck (membrane breach detection) |
| Brand | YSI |
|---|---|
| Origin | USA |
| Model | ProSwap-Logger |
| Power | Internal rechargeable battery (integrated) + optional external 6×AA battery pack for extended deployment |
| Communication Protocols | SDI-12, Modbus RTU (configurable via firmware) |
| Interface | USB-C for data download, charging, and Kor software connectivity |
| Display | Compatible with YSI ProSwap handheld (color LCD) and ProDSS handheld |
| Software | Kor v3.x (Windows/macOS) with GLP-compliant audit trail, metadata tagging, and automated calibration logging |
| Environmental Rating | IP67-rated housing (submersible to 10 m for 30 min) |
| Operating Temperature | –20 °C to +50 °C |
| Data Storage | Internal 16 MB non-volatile memory (supports >1 million readings) |
| Sampling Interval | Configurable from 1 second to 180 days |
| Brand | YSI |
|---|---|
| Origin | USA |
| Model | 6820EDS / 6920EDS |
| Instrument Type | In-situ Online Water Quality Analyzer |
| DO (% air saturation) | 0–500%, ±2% or ±2% air saturation (0–200%), ±6% (200–500%) |
| DO (mg/L) | 0–50 mg/L, ±2% or ±0.2 mg/L (0–20 mg/L), ±6% (20–50 mg/L) |
| Conductivity | 0–100 mS/cm, ±0.5% + 0.001 mS/cm |
| Temperature | −5 to 50 °C, ±0.15 °C |
| pH | 0–14, ±0.2 |
| ORP | −999 to +999 mV, ±20 mV |
| Salinity | 0–70 ppt, ±1.0% or ±0.1 ppt |
| Depth (shallow) | 0–9 m, ±0.018 m |
| Depth (mid-depth) | 0–61 m, ±0.12 m |
| Barometrically Compensated Water Level | 0–9 m, ±0.003 m |
| Turbidity | 0–1000 NTU, ±2% or ±0.3 NTU |
| Rhodamine WT | 0–200 µg/L, ±1.0 µg/L or ±5% |
| Chlorophyll-a | 0–400 µg/L, LOD 0.1 µg/L, R² > 0.9999 |
| Ammonia-N / Nitrate-N / Chloride (freshwater only) | 0–200 mg N/L, ±10% or ±2 mg N/L |
| Sensor Cleaning | Integrated YSI Patented Auto-Cleaning Brush (for turbidity, DO, pH) |
| Brand | YSI (Viasys) |
|---|---|
| Origin | USA |
| Model | 2940 / 2980 |
| Detection Principle | Enzyme-immobilized Membrane Electrode (Amperometric Biosensing) |
| Analytes | Glucose, Lactate, and up to 16 Substrates/Metabolites |
| Response Time | ≤60 s per Analyte |
| Channel Configuration | Multi-channel (Configurable for Parallel Bioreactor Monitoring) |
| Fluid Compatibility | High-cell-density Cultures, Microbial Fermentation Broths |
| Regulatory Context | Designed for GLP/GMP-aligned Process Analytical Technology (PAT) Environments |
| Brand | WTW |
|---|---|
| Origin | Germany |
| Model | TCU/COD3260 |
| Measurement Principle | Acidic Potassium Permanganate Oxidation with Potentiometric Endpoint Detection (Dual Platinum Electrodes) |
| Temperature Control | 100 °C ± 1 °C |
| Detection Range | 0.5–10 mg/L O₂ (as KMnO₄) |
| Accuracy | ±5% of reading (typical, matrix-dependent) |
| Reagent Consumption | ≤3.5 mL per analysis cycle |
| Sample Flow Requirement | 0.5–2.0 L/min |
| Power Supply | 230 VAC, 50/60 Hz |
| IP Rating | IP65 (enclosure) |
| Compliance | EN ISO 8467:2022, DIN 38409-H12, EPA Method 410.2 (adapted), GLP-ready architecture |
| Brand | YSI |
|---|---|
| Origin | USA |
| Model | YSI 556MPS |
| Instrument Type | Portable Multiparameter Water Quality Analyzer |
| DO (Air Saturation) | 0–500%, Resolution: 0.1%, Accuracy: ±2% or ±2% air saturation (0–200%), ±6% (200–500%) |
| DO (mg/L) | 0–50 mg/L, Resolution: 0.01 mg/L, Accuracy: ±2% or ±0.2 mg/L (0–20 mg/L), ±6% (20–50 mg/L) |
| Temperature | −5 to +45 °C, Resolution: 0.1 °C, Accuracy: ±0.15 °C |
| Conductivity | 0–200 mS/cm, Resolution: 0.001–0.1 mS/cm (range-dependent), Accuracy: ±0.5% or ±0.001 mS/cm (4-m cable), ±1.0% or ±0.001 mS/cm (20-m cable) |
| Salinity | 0–70 ppt, Resolution: 0.01 ppt, Accuracy: ±1.0% or ±0.1 ppt |
| pH (optional) | 0–14, Resolution: 0.01, Accuracy: ±0.2 |
| ORP (optional) | −999 to +999 mV, Resolution: 0.1 mV, Accuracy: ±20 mV |
| TDS | 0–100 g/L, Resolution: 4-digit |
| Barometer (optional) | 500–800 mmHg, Resolution: 0.1 mmHg, Accuracy: ±3 mmHg (within ±15 °C of calibration temperature) |
| Brand | YSI |
|---|---|
| Origin | USA |
| Model | 6820 / 6920 |
| Dissolved Oxygen (DO) | 0–500% air saturation (±2% or 2% of reading, whichever is greater, for 0–200% |
| Conductivity | 0–100 mS/cm (±0.5% + 0.001 mS/cm) |
| Temperature | −5 to 50 °C (±0.15 °C) |
| pH | 0–14 (±0.2) |
| ORP | −999 to +999 mV (±20 mV) |
| Salinity | 0–70 ppt (±1.0% or 0.1 ppt, whichever is greater) |
| Depth (Shallow) | 0–9 m (±0.018 m) |
| Depth (Medium) | 0–61 m (±0.12 m) |
| Barometric Pressure-Compensated Water Level | 0–9 m (±0.003 m) |
| Turbidity | 0–1000 NTU (±2% or 0.3 NTU, whichever is greater) |
| Chlorophyll-a | 0–400 µg/L (detection limit: 0.1 µg/L |
| Rhodamine WT | 0–200 µg/L (±5% or 1 µg/L, whichever is greater) |
| Ammonia/Nitrate (Freshwater only) | 0–200 mg N/L (±10% or 2 mg N/L, whichever is greater) |
| Chloride (Freshwater only) | 0–1000 mg/L (±15% or 5 mg/L, whichever is greater) |
| Brand | YSI |
|---|---|
| Origin | USA |
| Model | DO200 |
| Instrument Type | Portable |
| Temperature Measurement Principle | Thermistor (10 kΩ @ 25 °C) |
| Temperature Range | –6 to +46 °C |
| Temperature Resolution | 0.1 °C |
| Temperature Accuracy | ±0.3 °C ±1 LSD |
| DO (% Air Saturation) Principle | Steady-State Polarographic (PE Membrane) |
| DO (% AS) Range | 0–200 % |
| DO (% AS) Resolution | 0.1 % |
| DO (% AS) Accuracy | ±2 % of reading or ±2 % air saturation, whichever is greater |
| DO (mg/L) Principle | Steady-State Polarographic (PE Membrane) |
| DO (mg/L) Range | 0–20 mg/L |
| DO (mg/L) Resolution | 0.01 mg/L |
| DO (mg/L) Accuracy | ±2 % of reading or ±0.2 mg/L, whichever is greater |
| Enclosure Rating | IP65 |
| Compensation | Automatic temperature compensation |
| Membrane Type | Next-generation fast-response, low-stirring-dependency PE membrane |
| Cable Options | 4 m or 10 m |
| Probe Construction | Stainless steel sensor with protective polymer sheath |
| Connector | Strain-relieved cable interface |
| Brand | SonTek |
|---|---|
| Origin | USA |
| Model | RS5® |
| Measurement Principle | Acoustic Doppler Velocimetry |
| Product Type | River ADCP System |
| Compliance | ASTM D5389, ISO 748, USGS TWRI 3-A12, EPA Method 160.1 |
| Data Output Formats | Excel (.xlsx), MATLAB (.mat), KML/KMZ (Google Earth), CSV |
| Software Platform | RSQ v5.x with SmartPulse+ Processing Engine |
| Deployment Options | Boat-mounted, Cable-suspended, rQPOD Remote-Controlled Floating Platform |
| Beam Configuration | 4-beam Janus, optional 3-beam switching for bank interference mitigation |
| Velocity Range | ±15 m/s (user-configurable), Resolution: 1 mm/s |
| Cell Size | 0.1–2.0 m (adjustable) |
| Maximum Profiling Depth | 50 m (dependent on frequency & water conditions) |
| Operating Frequency | 1500 kHz (standard), optional 600/300 kHz for deeper profiling |
Show next