Environmental Monitoring Instruments
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| 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 |
|---|---|
| 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 |
|---|---|
| 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 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 |
| Origin | Imported |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Instrument Type | Laboratory BOD Analyzer |
| Measurement Principle | Pressure Differential (O₂ Consumption + CO₂ Absorption) |
| Measurement Range | 0–5000 mg/L |
| Detection Limit | 500 mg/L |
| Accuracy | ±1 mg/L |
| Single Sample Measurement Time | 8 min |
| Repeatability | ±3% |
| Compliance | DIN EN 1899-1, DIN EN 1899-2, EPA Method 5210B, GLP/GMP-ready |
| Brand | WTW |
|---|---|
| Origin | Germany |
| Model | WTW OxiTop®-i IS 6 BOD |
| Instrument Type | Laboratory Benchtop Analyzer |
| Measurement Principle | Manometric Respirometry (CO₂-absorbed pressure differential method) |
| Measurement Range | 0–40 mg/L (standard), up to 4,000 mg/L (via sample dilution or reduced volume) |
| Accuracy | <10% deviation from reference value |
| Repeatability | ≤ ±2.8% RSD |
| Measurement Duration | Programmable from 1 to 7 days |
| Sample Capacity | 6 independent channels |
| Display | Individual LCD graphic display per sensor head |
| Temperature Compensation | Automatic thermal equilibration delay (1–3 h) |
| Units | mg/L O₂, ΔhPa, hPa, digit |
| Compliance | Designed for ISO 5815-1:2019, EN 25815, and APHA Standard Methods 5210 B |
| Origin | Imported |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Instrument Type | Portable / Handheld Water Quality Analyzer |
| Measured Parameters | pH, mV, ISE (Ion-Selective Electrode), Temperature |
| Calibration Options | 2–7 point ISE calibration, non-linear ISE applications |
| Display | Backlit LCD |
| Enclosure Rating | IP67 |
| Power Supply | 4 × AA alkaline or 4 × NiMH rechargeable batteries |
| Data Storage | Manual (200 entries) or automatic (5,000 entries), configurable logging interval |
| Compliance | GLP-compliant data handling, audit-ready timestamped records |
| Connectivity | Waterproof USB interface |
| CMC (Continuous Measurement Control) | Real-time calibration and measurement integrity monitoring |
| Operating Temperature Range | –5.0 to +105.0 °C (±0.1 °C accuracy) |
| pH Range | –2.000 to +19.999 (±0.005 pH accuracy) |
| mV Range | –2500 to +2500 mV (±1 mV accuracy) |
| ISE Range | 0.000–9.999 / 10.00–99.99 / 100.0–999.9 / 1000–999999 (unit-dependent |
| Origin | Imported |
|---|---|
| Type | Benchtop Laboratory Analyzer |
| Model | PhotoLab® S6, PhotoLab® S12, photoLab® 6000 Series |
| Measurement Principle | Rapid Digestion Photometry |
| Wavelength Range | 436 nm, 525 nm, 580 nm, 610 nm, 690 nm (S6) |
| Measurement Range | 0–1000 mg/L COD |
| Accuracy | ±5% of reading |
| Repeatability | ≤5% RSD |
| Detection Limit | 0.1 mg/L COD |
| Analysis Time | ≤30 min per batch |
| Batch Capacity | 15 samples |
| Cuvette Recognition | Automatic barcode-based identification for round and rectangular cuvettes (10 mm, 20 mm, 50 mm path lengths) |
| Compliance | Designed for ASTM D1252, ISO 6060, EN 1484, and US EPA Method 410.4 workflows |
| Brand | WTW |
|---|---|
| Origin | Germany |
| Distribution Status | Authorized Distributor |
| Import Status | Imported |
| Model | SENSORNET Online |
| Price Range | USD 25,000 – 125,000 |
| Brand | WTW |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Product Origin | Domestic (China-assembled under WTW/Xylem specifications) |
| Model | StirrOx® G |
| Instrument Type | Portable DO Sensor |
| Measurement Principle | Polarographic (Clark-type) Electrochemical Probe |
| Range | 0.00–90 mg/L O₂ |
| Accuracy | ±0.5% of reading |
| Repeatability | ≤±0.5% |
| Detection Limit | 0.01 mg/L |
| Response Time (t₉₀) | <60 s (in stirred water at 20 °C) |
| Operating Temperature | 0–40 °C |
| Membrane Material | PTFE |
| Electrolyte | KCl-based aqueous solution |
| Connector | WTW-standard 6-pin DIN |
| Key | Origin: Imported |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Model | TresCon A |
| Instrument Type | Online Water Quality Analyzer |
| Measured Parameters | Ammonia-N (NH₄⁺-N), Total Phosphorus (TP), Total Nitrogen (TN) |
| Module Capacity | Up to 3 Independent Analytical Modules |
| Compliance | Designed for ISO/IEC 17025-aligned operation, supports GLP/GMP data integrity requirements via audit-trail-enabled software |
| Communication | RS-485, Modbus RTU, optional analog 4–20 mA outputs and Ethernet/IP integration |
| Brand | WTW |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Instrument Type | Online Analyzer |
| Measurement Principle | Ammonia Gas-Sensing Electrode (NH₃-Selective Electrode) |
| Measurement Range | 0.05–1000 mg/L NH₄–N (dual-range: low range 0.05–10 mg/L, high range 0.1–1000 mg/L) |
| Accuracy | ±5% of reading |
| Detection Limit | 0.05 mg/L NH₄–N |
| Analysis Time | ≤3 minutes per sample |
| Sample Throughput | 3 samples per cycle |
| Compliance | Designed for continuous operation in EPA-compliant and ISO 5667-3 / ISO 15839 environmental monitoring applications |
| Brand | WTW |
|---|---|
| Origin | Germany |
| Model | ZBK/NH500/TC |
| Measurement Principle | Gas-Permeable Membrane Potentiometry (Ammonia-Selective) |
| Package Contents | 3 Ammonia-Sensing Membrane Caps + 1 Bottle of Electrolyte Solution (NH₄⁺-specific) |
| Compatible Instrument | TresCon OA110 Online Ammonia Analyzer |
| Application Scope | NH₄⁺: 0.00–1280 mg/L |
| NH₃-N | 0.03–1000 mg/L |
| Compliance Context | Designed for continuous compliance monitoring per ISO 7888, EN 27888, and EPA Method 350.1 |
| Brand | X-imaging |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Country of Origin | China |
| Model | Intelligent Unmanned Water Quality Laboratory System |
| Pricing | Available upon Request |
| Brand | Xiarui |
|---|---|
| Origin | Fujian, China |
| Manufacturer Type | Manufacturer |
| Country of Origin | China |
| Model | DT-CR0300 |
| Instrument Category | Automatic Water Sampler |
| Sampling Method | Time-Programmed & Volume-Controlled Sampling |
| Instrument Type | Portable Wastewater Sampler |
| Single Sample Volume | 1–999 mL (adjustable) |
| Sampling Volume Accuracy | ≤ ±1% |
| Sampling Interval | 1–999 min (adjustable) |
| Maximum Submersion Depth | ≥ 8 m |
| Vertical Sampling Height | ≥ 8 m |
| Horizontal Sampling Distance | ≥ 50 m |
| Enclosure Rating | IP67 |
| Unit Weight | ≤ 8 kg |
| Battery Runtime | ≥ 24 h (continuous operation) |
| Sampling Mode | Peristaltic Pump Suction with Microstepping Motor Drive |
| Water Level Adaptation | Auto-compensating for dynamic water level changes in confined spaces |
| Origin | Japan |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | XP-308II |
| Detection Principle | Electrochemical Sensor |
| Measurement Range (Standard) | 0.00–3.00 ppm |
| Minimum Resolution | 0.01 ppm |
| Sampling Method | Integrated Micro-Pump (Active Draw) |
| Display | Dual-mode — Digital Numeric + Bar Graph Scale |
| Dimensions (W×H×D) | 175 × 140 × 86 mm |
| Weight | Approx. 2.5 kg |
| Power Supply | Rechargeable Battery or AC Adapter |
| Brand | Xunshu |
|---|---|
| Origin | Zhejiang, China |
| Manufacturer Type | OEM Manufacturer |
| Product Category | Domestic |
| Model | Algacount M500 |
| Instrument Type | Algal Counter and Plankton Analyzer |
| Price Range | USD 150–15,000 (FOB) |
| Brand | Xunshu |
|---|---|
| Origin | Zhejiang, China |
| Manufacturer Type | OEM Manufacturer |
| Product Category | Domestic |
| Model | M600 |
| Price Range | USD 21,000–28,000 |
| Instrument Type | Algal and Plankton Counter |
| Camera Resolution | 8.5 MP |
| Magnification | 40× |
| Identification Method | Morphological and Taxonomic Analysis |
| Brand | Qingdao Xinye Environmental Protection Co., Ltd. |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | OEM Manufacturer |
| Country of Origin | China |
| Model | XY-HCS5 |
| Price | USD 13,800 (FOB Qingdao) |
| Rain Sensor Sensitivity | ≥0.03 mm/min |
| Lid Opening Time | ≤30 s |
| Lid Closing Time | ≤5 min |
| Maximum Rainfall Intensity Range | 0.03–4 mm/min |
| Measurement Accuracy | ±0.4 mm (at rainfall intensity ≤4 mm/min) |
| Funnel Diameter | 400 mm |
| Dustfall Cylinder Diameter | 150 mm |
| pH Range (25°C) | 1.0–10.0 |
| pH Accuracy | ±0.1 pH |
| Conductivity Range (25°C) | 0–50 mS/m |
| Conductivity Accuracy | ±2% FS |
| Sample Refrigeration | 4±1°C |
| Data Storage Capacity | 8,000 precipitation events (10-year retention) |
| Power Consumption | Max 100 W (25 W standby) |
| Origin | Beijing, China |
|---|---|
| Manufacturer Type | Distributor |
| Origin Category | Domestic |
| Model | YellowScan Mapper |
| Pricing | Upon Request |
| Brand | Yetuo |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | YT-2810 |
| Instrument Type | Laboratory Benchtop Analyzer |
| Display | 5.0-inch color TFT touchscreen (Chinese UI) |
| Measurement Range | 0–200 µg/L or 0–2000 µg/L (selectable) |
| Accuracy | ±2% of Full Scale |
| Resolution | 0.1 µg/L |
| Repeatability | ≤1% |
| Drift | ±1% F.S./4 h |
| Light Source | Imported monochromatic cold LED |
| Method | Standard colorimetric analysis per Chinese national standard (1,10-phenanthroline method for phosphate |
| Dimensions | 270 mm × 200 mm × 190 mm |
| Power Supply | AC 220 V ±10%, 50 Hz ±1 Hz |
| Power Consumption | 30 W |
| Operating Temperature | 5–45 °C |
| Operating Humidity | <90% RH (non-condensing) |
| Weight | 4 kg |
| Brand | YINHEKEJI |
|---|---|
| Origin | Jiangsu, China |
| Model | FCD-50 Standard |
| Power Supply | DC 7.4 V / 8800 mAh Li-ion rechargeable battery |
| Adjustable Flow Rates | 1–10 L/min, 5–25 L/min, or 5–30 L/min (user-selectable) |
| Maximum Negative Pressure | >1000 Pa (metal vane pump) |
| Flowmeter Accuracy | ±2.5% F.S. |
| Flow Stability | ≤5% |
| Timing Accuracy | ±0.01% |
| Operating Noise | <75 dB(A) |
| Ambient Temperature Range | −10 °C to +40 °C |
| Relative Humidity | <95% RH |
| Charging Current | 1000 mA |
| Continuous Operation Time | >8 h |
| Dimensions (L×W×H) | 220 × 135 × 150 mm |
| Weight | 3.5 kg |
| Sampling Modes | Total dust (standard), respirable dust (optional) |
| Display | LCD with menu-driven interface |
| Timer Functions | Programmable start/stop, pause/resume, real-time elapsed time, end-of-sampling alert |
| Brand | Azure Cloud & Wind Confluence |
|---|---|
| Origin | Jiangsu, China |
| Manufacturer Type | Authorized Distributor |
| Country of Manufacture | China |
| Model | YL-CJQ |
| Instrument Category | Specialized Entomological Weather Station |
| Price | USD 700 (FOB Jiangsu) |