Water Quality Analysis
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Showing 2311–2340 of 3714 results
| Origin | Shanghai, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Product Origin | Domestic (China) |
| Models | PFS-80 (Benchtop), PFP-208 (Portable) |
| Measurement Range | 0–6.00 pF |
| Accuracy | ±0.02 pF |
| Temperature Compensation Range | 0–60 °C |
| pH Measurement Range | 0.00–14.00 (±0.01) |
| mV Range | ±1999 mV (±0.1%) |
| Output Signal | –1999 to +1999 mV |
| Power Supply | AC 220 V ±10%, 50/60 Hz |
| Battery | 9 V (6F22) |
| Net Weight | 1.8 kg (PFS-80), 0.5 kg (PFP-208) |
| Stability | ±0.01 pF/30 min |
| Origin | Germany |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | Picco |
| Instrument Type | Portable Colorimetric Water Quality Analyzer |
| Power Supply | 9 V Alkaline Battery (40 h continuous operation) |
| Operating Temperature | 0–40 °C |
| Operating Humidity | 30–90 % RH |
| Dimensions (Instrument) | 190 × 110 × 55 mm |
| Dimensions (Carrying Case) | 270 × 225 × 80 mm |
| Keypad | 3-button polycarbonate membrane, ESD-protected |
| Sample Cell | Waterproof, integrated cuvette chamber |
| Optical System | Temperature-compensated LED light source |
| Auto Power-Off | Yes |
| Origin | Beijing, China |
|---|---|
| Manufacturer Type | Distributor |
| Product Origin | Domestic (China) |
| Model | PT-C |
| Pricing | Upon Request |
| Instrument Category | Algal Counter |
| Origin | Beijing, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (China) |
| Model | CC-F / CC-S |
| Pricing | Available Upon Request |
| Instrument Type | Algal and Plankton Counting Chamber |
| Material | Borosilicate Glass (CC-F & CC-S), Stainless Steel Frame (CC-F 0.1 mL variant) |
| Volume Options | 0.1 mL, 1 mL (CC-F) |
| Grid Configuration | CC-F 0.1 mL — 100-square grid (20 mm × 20 mm chamber, 0.02 mm line width, molded scribe lines) |
| Microscopy Compatibility | CC-F — upright optical microscope (40×–100× objective range) |
| Origin | Germany |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | PLR/PR |
| Pricing | Upon Request |
| Origin | Beijing |
|---|---|
| Manufacturer Type | Distributor |
| Origin Category | Domestic (China) |
| Model | PT-S |
| Pricing | Upon Request |
| Material | Borosilicate Glass |
| Graduation Range | 100–1000 mL |
| Minimum Graduation | 10 mL |
| Support Frame Material | Acrylic |
| Configuration Options | 2-unit pack (1000 mL each) or 4-unit pack (1000 mL each) |
| Origin | Beijing, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Models | PTN-S400 / PTN-S500 |
| Quotation | Available Upon Request |
| Net Length | 50 cm |
| Ring Inner Diameter | 20 cm |
| Mesh Aperture | 35 µm (PTN-S400) / 20 µm (PTN-S500) |
| Frame Material | Anodized Aluminum Alloy |
| Bottom Tube Valve | Brass |
| Optional Wire Rope | Ø3 mm PVC-coated stainless steel wire rope with Ø4 mm stainless steel snap-lock carabiner |
| Origin | Beijing, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (China) |
| Model | TS20 |
| Pricing | Available Upon Request |
| Sieve Material | Stainless Steel |
| Frame Construction | Dual-layer Stamped Steel |
| Diameter | 20 cm |
| Height | 5 cm |
| Mesh Sizes | 20 mesh (1000 µm) |
| Brand | PME |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Import Status | Imported |
| Model | LakeESP |
| Price | USD 96,000 |
| Data Logger Resolution | 20-bit |
| Internal Storage | 2 GB SD card |
| Sampling Interval | 1 minute |
| Communication Options | GSM, VHF/UHF Radio, Iridium Satellite |
| Structural Material | 316 Stainless Steel |
| Temperature Accuracy | ±0.010 °C |
| Dissolved Oxygen Sensor | Optical (8 µm or ±5% of reading) |
| PAR Sensor | LI-192SA |
| Pressure Ranges | 5 / 10 / 20 bar |
| Meteorological Sensors | Vaisala or R.M. Young (humidity, precipitation, wind speed/direction) |
| Radiation Sensors | Hukseflux or Kipp & Zonen (net longwave/shortwave) |
| Water Quality Probes | Chlorophyll-a, Turbidity, Phycocyanin (cyanobacteria), CDOM, Hydrocarbon (oil-in-water) |
| Brand | PME |
|---|---|
| Origin | USA |
| Model | miniDOT |
| Instrument Type | Standalone In-situ Logger |
| Measurement Principle | Optical Fluorescence Quenching |
| DO Range | 0–150% saturation |
| DO Accuracy | ±10 µmol/L or ±5% of reading (whichever is greater) |
| DO Detection Limit | 0.05 µmol/L |
| DO Repeatability | ±0.05% saturation |
| Temperature Range | 0–30 °C |
| Temperature Accuracy | ±0.1 °C |
| Temperature Resolution | 0.01 °C |
| Data Storage | Internal 2 GB microSD card |
| Power Supply | Two AA batteries |
| Sampling Interval | Configurable from 1 min to 60+ days (e.g., 1-min interval → ~500 KB/365 days |
| Origin | Shanghai, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Regional Origin | Domestic (China) |
| Models | PnaS-50 (Benchtop), PnaP-205 (Portable) |
| Measurement Range | 0–6.00 pNa |
| Accuracy | ±0.02 pNa |
| Temperature Compensation Range | 0–60 °C |
| pH Range | 0.00–14.00 ±0.01 |
| mV Range | ±1999 mV ±0.1% |
| Output Signal | –1999 to +1999 mV |
| Power Supply | AC 220 V ±10%, 50/60 Hz (PnaS-50) |
| Net Weight | 1.8 kg (PnaS-50), 0.5 kg (PnaP-205) |
| Stability | ±0.01 pNa/24 h |
| Brand | Starwood |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | OEM Manufacturer |
| Region of Origin | Domestic (China) |
| Model | PolyPen-Aqua |
| Instrument Type | Algal Counter |
| Light Source | Pulsed Xenon Lamp (380–780 nm) |
| Spectral Range | 380–780 nm |
| Measurement Modes | Reflectance, Absorbance, Transmittance |
| Data Output | Spectral curves (Aλ), derived pigment indices, GPS-tagged georeferenced records |
| Software Interface | PolyPen Control & Analysis Suite (Windows/macOS) |
| Compliance | Designed for field-deployable GLP-aligned workflows |
| Brand | PONSEL (France) |
|---|---|
| Origin | France |
| Model | Multy 8320 |
| Instrument Type | Portable / Handheld Water Quality Analyzer |
| Detection Principle | Electrochemical Sensing (pH, ORP, Conductivity), Fluorescence-based Optical Dissolved Oxygen (OPTOD®), Infrared Turbidity (ISO 7027) |
| Measured Parameters | pH, ORP, Dissolved Oxygen (mg/L & % saturation), Conductivity (μS/cm, mS/cm), Salinity, Temperature, Turbidity (NTU & mg/L) |
| Display | 4-inch TFT LCD |
| Data Storage | Up to 100,000 measurement sets |
| Protection Rating | IP67 |
| Compliance | GLP, ASTM D888–05, ISO 7027 |
| Communication Interface | Modbus RS-485 |
| Operating Temperature | –10 °C to +50 °C |
| Power | 4 × AA batteries (included) or optional 12 V external supply |
| Brand | AQUALABO |
|---|---|
| Origin | France |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | PONSEL |
| Price Range | USD 140–7,200 (FOB) |
| Detection Principle | Conductive Liquid-Level Sensing |
| Output Type | Non-polarized Dry Contact (SPST) |
| Detection Threshold | 0.5 mm water film |
| Detector Housing Material | PVC with Stainless Steel Electrodes |
| Electronics Enclosure Material | PVC |
| IP Rating | IP68 (Detector & Electronics Box) |
| Operating Temperature | 0–50 °C |
| Detector Dimensions (H×W×D) | 20 × 80 × 60.5 mm |
| Electronics Box Dimensions (H×D) | 120 × 40 mm |
| Detector-to-Box Cable Length | 9 m (fixed, shielded multi-strand polyurethane-sheathed cable) |
| Output Cables | Two 1 m polyurethane-sheathed leads with bare tinned-copper terminations |
| Power Supply | Internal Li-MnO₂ battery (3.6 V, 3-year typical service life) or external +3.6 V ±5% (SPN mode, <200 µA quiescent current) |
| Brand | PRIMA (UK) |
|---|---|
| Origin | Taiwan |
| Model | innoLab 10C |
| Instrument Type | Portable/Handheld Water Quality Analyzer |
| Measured Parameters | Conductivity, TDS, Salinity |
| Conductivity Range | 0–5.000 µS/cm, 0–50.00 µS/cm, 0–500.0 µS/cm, 0–5000 µS/cm, 0–50.00 mS/cm, 0–500.0 mS/cm |
| TDS Range | 0–500 ppt |
| Salinity Range | 0–325 ppt |
| Conductivity Resolution | 0.001–1 µS/cm, 0.01–0.1 mS/cm |
| Conductivity Accuracy | ±1% F.S. |
| Resistivity Range | 0–18.30 MΩ·cm |
| Resistivity Resolution | 0.01 MΩ·cm |
| Temperature Range | −5.0–120.0 °C |
| Temperature Accuracy | ±0.3 °C |
| Auto Temperature Compensation (ATC) | Yes, reference temp 15.0–30.0 °C (default 25.0 °C) |
| Temp. Coefficient | 0.00–9.99% (default 2.00%) |
| TDS Factor | 0.40–1.00 (default 0.50) |
| Salinity Factor | 0.65 |
| Cell Constant Options | 0.01, 0.1, 1.0, 10.0 cm⁻¹ |
| Data Storage | 100 readings |
| Display | Backlit LCD, 120° viewing angle |
| Power | 2 × AA batteries |
| Enclosure Rating | IP67 |
| Dimensions | 73 × 152 × 42 mm |
| Weight | 250 g |
| Brand | PRIMA (UK) |
|---|---|
| Origin | Taiwan |
| Model | innoLab 10D |
| Instrument Type | Portable/HANDHELD Water Quality Analyzer |
| Measured Parameters | Dissolved Oxygen (DO), mg/L and % Saturation |
| Measurement Range | 0.00–40.00 mg/L, 0.0–400.0% sat |
| Temperature | −5.0–120.0°C / 23.0–248.0°F |
| Resolution | 0.01 mg/L, 0.1% sat, 0.1°C/0.1°F |
| Accuracy | ±1.5% F.S. (DO), ±0.3°C / ±0.5°F (Temp) |
| Calibration | Manual 1-point or 2-point (air-saturated water or zero-oxygen solution) |
| Salinity Compensation | 0.0–45.0 ppt (manual input) |
| Atmospheric Pressure Compensation | 450–800 mmHg / 0.600–1.100 bar (manual input) |
| Depth Compensation | 0.0–10.0 m (liquid level) |
| Memory Capacity | 100 data sets |
| Auto Power-Off | After 10 min inactivity |
| Power Supply | 2 × AA batteries |
| Enclosure Rating | IP67 |
| Dimensions | 73 × 152 × 42 mm |
| Weight | 250 g |
| Brand | PRIMA (UK) |
|---|---|
| Origin | Taiwan |
| Model | innoLab 10I |
| Instrument Type | Portable/Handheld Water Quality Analyzer |
| Measurable Ions | F⁻, Na⁺, Cl⁻, Br⁻, K⁺ |
| pH Range | −2.000–20.000 |
| mV Range | −2000.0–2000.0 mV |
| Ion Concentration Range | 0.000–9999 mg/L |
| Resolution (ION) | 0.001 mg/L (dependent on concentration) |
| Accuracy (ION) | ±0.5% F.S. ±3 LSD |
| Temperature Range | −10.0–120.0 °C |
| Temp. Accuracy | ±0.3 °C |
| Calibration | Up to 7-point ISE calibration |
| Memory Capacity | 1000 data sets (pH: 500, mV: 250, ION: 250) |
| Interface | USB |
| Power | 100–240 VAC adapter |
| Dimensions | 150 × 194 × 56 mm |
| Weight | 1.0 kg |
| Electrode Interface | BNC |
| Compatible ISEs | Epoxy/PVC/Teflon-body gel-filled or glass electrodes (e.g., IS-FLS, IS-NaLS, IS-ClLS, IS-BrLS, IS-KLS) |
| Brand | PRIMA (UK) |
|---|---|
| Origin | Taiwan |
| Model | innoLab 10P |
| Instrument Type | Portable/HANDHELD Water Quality Analyzer |
| Measured Parameters | pH, ORP (mV), Temperature |
| pH Range | -2.00 to 16.00 pH |
| ORP Range | -2000 to +2000 mV |
| Temperature Range | -5.0 to 120.0 °C |
| Resolution | 0.01 pH / 0.1 mV (±600.0 mV) / 0.1 °C |
| Accuracy | ±0.01 pH / ±0.2 mV (±600 mV), ±1 mV (full range) / ±0.3 °C |
| Temp. Compensation | Automatic or Manual |
| Calibration | Up to 5-point (NIST/USA buffers) |
| Memory | 100 data sets |
| Auto-Off | 10 min inactivity |
| Power | 2 × AA batteries |
| IP Rating | IP65 (pH mode), IP67 (conductivity/DO mode, not applicable here) |
| Dimensions | 73 × 152 × 42 mm |
| Weight | 250 g |
| Brand | PRIMA |
|---|---|
| Origin | Taiwan |
| Model | innoLab 20C |
| Instrument Type | Benchtop Water Quality Analyzer |
| Measured Parameters | Conductivity, TDS, Salinity |
| Conductivity Range | 0–5.000 µS/cm, 0–50.00 µS/cm, 0–500.0 µS/cm, 0–5000 µS/cm, 0–50.00 mS/cm, 0–500.0 mS/cm |
| TDS Range | 0–500 ppt |
| Salinity Range | 0–325 ppt |
| Conductivity Resolution | 0.001–1 µS/cm and 0.01–0.1 mS/cm |
| Conductivity Accuracy | ±1% F.S. |
| Resistivity Range | 0–18.30 MΩ·cm |
| Resistivity Resolution | 0.01 MΩ·cm |
| Temperature Range | −5.0–120.0 °C |
| Temperature Accuracy | ±0.3 °C |
| Auto Temperature Compensation (ATC) | Yes |
| Reference Temp | 15.0–30.0 °C (default 25.0 °C) |
| Temp. Coefficient | 0.00–9.99% (default 2.00%) |
| TDS Factor | 0.40–1.00 (default 0.50) |
| Salinity Factor | 0.65 |
| Cell Constant Options | 0.01, 0.1, 1.0, 10.0 cm⁻¹ |
| Interface | USB |
| Power Supply | 100–240 VAC |
| IP Rating | IP54 |
| Dimensions | 150 × 194 × 56 mm |
| Weight | 1.0 kg |
| Data Storage | 100 measurement records |
| Brand | PRIMA |
|---|---|
| Origin | Taiwan |
| Model | innoLab 20D |
| Instrument Type | Benchtop Dissolved Oxygen Analyzer |
| Measurement Range | 0.00–40.00 mg/L (ppm) and 0.0–400.0% saturation |
| Temperature Range | −5.0–120.0°C (23.0–248.0°F) |
| Resolution | 0.01 mg/L, 0.1%, 0.1°C/0.1°F |
| Accuracy | ±1.5% F.S. (DO), ±0.3°C (temperature) |
| Calibration | Manual 1-point or 2-point (air-saturated water / zero-oxygen solution) |
| Salinity Compensation | 0.0–45.0 ppt (manual input) |
| Atmospheric Pressure Compensation | 450–800 mmHg (0.600–1.100 bar) |
| Depth Compensation | 0.0–10.0 m (hydrostatic pressure correction) |
| Data Storage | 100 measurement records |
| Interface | USB (virtual COM port) |
| Power Supply | 100–240 VAC adapter |
| Battery | Built-in rechargeable Li-ion (for portable operation within benchtop form factor) |
| Enclosure Rating | IP54 |
| Dimensions | 150 × 194 × 56 mm |
| Weight | 1.0 kg |
| Brand | PRIMA (UK) |
|---|---|
| Origin | Taiwan |
| Model | innoLab 20I |
| Ion Measurement Range | 0.000–9999 mg/L |
| pH Range | −2.000–20.000 |
| mV Range | −2000.0–2000.0 |
| Temperature Range | −10.0–120.0 °C |
| pH Accuracy | ±0.2% F.S. ±3 LSD |
| mV Accuracy | ±0.1% F.S. ±3 LSD |
| Ion Accuracy | ±0.5% F.S. ±3 LSD |
| Calibration Points | up to 7-point ISE calibration |
| Memory Capacity | 1000 data sets (pH: 500, mV: 250, ION: 250) |
| Display | Backlit dot-matrix LCD |
| Interface | USB 2.0 |
| Power Supply | 100–240 VAC |
| Dimensions | 150 × 194 × 56 mm |
| Weight | 1.0 kg |
| Electrode Interface | BNC |
| Temperature Compensation | Automatic/Manual |
| ISE Compatibility | All standard liquid- and gel-filled ISEs (NH₄⁺, F⁻, Cl⁻, CN⁻, Na⁺, NO₃⁻, K⁺, Ca²⁺, Cu²⁺, Pb²⁺, Ag⁺, etc.) |
| Brand | PRIMA |
|---|---|
| Origin | Taiwan |
| Model | innoLab 20P |
| Instrument Type | Benchtop Water Quality Analyzer |
| Measured Parameters | pH, ORP |
| pH Range | -2.00 to 16.00 |
| ORP Range | -2000 to +2000 mV |
| Temperature Range | -5.0 to 120.0 °C |
| Resolution | 0.01 pH, 0.1 mV (±600.0 mV), 0.1 °C |
| Accuracy | ±0.01 pH, ±0.2 mV (±600.0 mV), ±1 mV (>±600.0 mV), ±0.3 °C |
| Temperature Compensation | Automatic or Manual |
| Calibration | Up to 5-point (NIST/USA buffers) |
| Memory Capacity | 100 data sets |
| Auto-Off | 10 min inactivity |
| Power | USB-powered with internal rechargeable Li-ion battery |
| Enclosure Rating | IP54 |
| Dimensions | 150 × 194 × 56 mm |
| Weight | 1.0 kg |
| Brand | PRIMASCI |
|---|---|
| Origin | Taiwan |
| Model | innoLab 10D |
| Instrument Type | Portable/Handheld Water Quality Analyzer |
| Measuring Parameter | Dissolved Oxygen (DO) |
| Measurement Range | 0.00–40.00 mg/L & 0–400.0% saturation |
| Resolution | 0.01 mg/L, 0.1%, 0.1 °C / 0.1 °F |
| Accuracy | ±1.5% of full scale, ±0.3 °C / ±0.5 °F |
| Temperature Compensation Range | 0.0–60.0 °C (auto/manual) |
| Calibration | 1- or 2-point automatic calibration |
| Salinity Compensation | 0.0–45.0 ppt |
| Atmospheric Pressure Compensation | 450–800 mmHg (0.600–1.100 bar) |
| Hydrostatic Pressure Compensation | 0.00–1.00 kg/cm² |
| Depth Compensation | 0.0–10.0 m |
| Data Storage | 100 measurement records |
| Auto Power-Off | Selectable (10 min inactivity) |
| Power Supply | 2 × 1.5 V AA batteries (>500 h operation) |
| Electrode Options | Clark-type polarographic or galvanic cell DO sensor |
| IP Rating | IP67 |
| Dimensions | 73 × 152 × 42 mm (W × L × H) |
| Weight | 250 g |
| Brand | Pro-Oceanus |
|---|---|
| Origin | Canada |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | CO2-Pro CV |
| Pricing | Upon Request |
| Brand | Pro-Oceanus |
|---|---|
| Origin | Canada |
| Model | CO2-Pro™ |
| Measurement Principle | Membrane Equilibration with NDIR Detection |
| Standard Range | 0–600 µatm (extendable to 0–2000 µatm) |
| Accuracy | ±0.5% of reading |
| Resolution | 0.01 ppm (equivalent to 0.01 µatm) |
| Response Time (t₆₃) | 2.5 min (with integrated pump) |
| Operating Depth | Up to 50 m |
| Housing Material | Acetal (POM) |
| Temperature Range | 0–30 °C (standard), –2–20 °C (polar), 15–40 °C (tropical) |
| Power Input | 10–18 VDC |
| Power Consumption | 4 W (10 W during warm-up, including SBE 3K pump) |
| Data Output | RS-232 (ASCII), optional 0–5 V analog or 4–20 mA |
| Sampling Interval | Configurable down to 1 s |
| Internal Storage | 2 GB microSD card |
| Weight | 6.5 kg in air / 0.5 kg in water |
| Dimensions | 33 cm length × 19 cm diameter |
| Pressure/Temperature/Humidity Compensation | Automatic and embedded |
| Zero Calibration | Automatic Zero Point Calibration (AZPC) with onboard CO₂ scrubber |
| Biofouling Resistance | Fully membrane-isolated optical path |
| Compliance | Designed for GLP-aligned long-term deployments |
| Brand | Pro-Oceanus |
|---|---|
| Origin | Canada |
| Model | Mini CH4™ |
| Measurement Principle | Membrane Inlet Non-Dispersive Infrared (NDIR) Spectroscopy |
| CH₄ Range | 0–1% v/v, 0–10% v/v, or 0–100% v/v (user-selectable) |
| TDGP Range | 0–2 bar |
| Accuracy | ±3% FS (CH₄), ±1% FS (TDGP) |
| Stabilization Time (t₆₃) | 8 min (with pump head) |
| Resolution | 0.1% FS |
| Depth Rating | 600 m (acetal housing), 6000 m (titanium housing) |
| Operating Temperature | −2 °C to 35 °C |
| Power Input | 7–24 VDC (digital), 12–24 VDC (analog) |
| Power Consumption | 0.45 W (digital), 0.6–0.9 W (analog) |
| Data Output | RS-232 (ASCII CSV), 0–5 V analog, or 4–20 mA |
| Sampling Interval | Configurable down to 2 s |
| Internal Storage | 2 GB microSD card |
| Housing Material | Acetal or Grade 5 Titanium (Ti-6Al-4V) |
| Weight in Air | 0.53 kg |
| Weight in Water | 0.06 kg |
| Dimensions | 28 cm L × 5.3 cm Ø |
| Brand | Pro-Oceanus |
|---|---|
| Origin | Canada |
| Model | Mini CO2 |
| Measurement Principle | Membrane Equilibration with NDIR Detection |
| CO₂ Range | 0–2000 ppm (extendable to 0–100% vol) |
| TDGP Range | 0–2 bar |
| Accuracy | ±2% of full scale (pCO₂), ±1% FS (TDGP) |
| Response Time (t₆₃) | 3 min |
| Resolution | 0.1% of full scale |
| Operating Depth | 600 m (acetal housing), 6000 m (titanium housing) |
| Dimensions | 28 cm × 5.3 cm (L × Ø) |
| Weight in Air | 0.53 kg |
| Weight in Water | 0.06 kg |
| Temperature Range | –2 °C to +35 °C |
| Power Input | 7–24 VDC (digital), 12–24 VDC (analog) |
| Power Consumption | 0.45 W (digital), 0.6–0.9 W (analog) |
| Data Output | RS-232 (ASCII CSV), 0–5 V or 4–20 mA |
| Sampling Interval | Configurable down to 2 s |
| Internal Storage | 2 GB microSD |
| Pressure/Temperature/Humidity Compensation | Automatic |
| Compliance | Designed for ASTM D5176, ISO 14687, and GLP-aligned long-term environmental monitoring deployments |
| Brand | Pro-Oceanus |
|---|---|
| Origin | Canada |
| Model | Solu-Blu CH4 |
| Measurement Principle | Membrane Inlet Non-Dispersive Infrared (NDIR) |
| CH₄ Range | 0–30 mg/L (switchable to 0–3 mg/L and 0–300 µg/L) |
| TDGP Range | 0–2 bar |
| Accuracy | ±3% of full scale (pCH₄), ±0.1% FS (TDGP) |
| Response Time (t₆₃) | 10 min |
| Resolution | 0.1% of full scale |
| Operating Depth | 0–50 m |
| Temperature Range | 0–35 °C |
| Power Input | 7–24 VDC |
| Power Consumption | 90 mW (RS-232 + 0–5 V), 300–600 mW (RS-232 + 4–20 mA) |
| Output | RS-232 (ASCII), 0–5 V analog, or 4–20 mA analog |
| Sampling Interval | Configurable down to 2 s |
| Dimensions | 19.68 cm (L, sensor only), 25.68 cm (L with connector) |
| Weight | 0.47 kg |
| Housing Material | Acetal (POM) |
| Standard Cable | 3 m integrated |
| Brand | Pro-Oceanus |
|---|---|
| Origin | Canada |
| Model | Solu-Blu CO2 |
| Measurement Principle | Membrane Equilibration with NDIR Detection |
| CO₂ Range | 0–50 mg/L |
| pCO₂ Range | 0–10,000 µatm |
| Accuracy | ±3% of full scale (pCO₂) |
| Response Time (t₆₃) | 4 min (pCO₂) |
| Operating Depth | 0–50 m |
| Temperature Range | 0–35 °C |
| Power Input | 7–24 VDC |
| Power Consumption | 90 mW (RS232 + 0–5 V), up to 60 mA max |
| Output Options | RS-232 (ASCII), 0–5 V analog, 4–20 mA analog |
| Sampling Interval | Configurable down to 2 s |
| Housing Material | Acetal |
| Dimensions | 19.68 cm (L) × 4.76 cm (Ø), 25.68 cm with connector |
| Weight | 0.47 kg |
| Pressure Compensation | Integrated |
| Temperature & Humidity Compensation | Automatic |
| Salinity Input | External compensation supported |
| Warm-up Time | 3 min |
| Brand | Proteus |
|---|---|
| Origin | United Kingdom |
| Model | Proteus 40 |
| Instrument Type | Online Analyzer |
| Measurement Principle | UV-Vis Absorbance (275 nm) + Electrochemical/Biosensor Hybrid Detection |
| Measurement Range | 0–600 mg/L COD |
| Accuracy | ±5% FS |
| Repeatability | <±5% RSD |
| LOD | 0.01 mg/L COD |
| Response Time | Continuous Real-Time Output |
| Compliance | CE, UKCA, RoHS |
| Data Transmission | Bluetooth 5.0, RS-485, Modbus TCP, Optional 4G/LTE |