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Shanghai Yifeng Instrumentation & Equipment Co., Ltd.

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BrandTriOS
OriginGermany
ModelLISA SAC 254
Measurement PrincipleUV absorbance at 254 nm (SAC₂₅₄) and visible reference at 530 nm
Light SourceDual LED (254 nm UV-C, 530 nm green)
DetectorFiltered photodiode
Path Length Options1, 2, 5, 10, or 50 mm
Output InterfacesEthernet (TCP/IP), RS-232/RS-485 (Modbus RTU, TriOS protocol), 4–20 mA analog
Turbidity CompensationInternal dual-wavelength correction (530 nm channel)
Accuracy±0.2% FS
Response Time4 s
Measurement Interval2 s
Data Logging Capacity2 MB (T100 format)
Operating Temperature2–40 °C (sample & ambient)
Storage Temperature−20–80 °C
Flow Velocity Range0.1–10 m/s
Max. Pressure (SubConn)30 bar
Max. Pressure (Fixed Cable)3 bar
Max. Pressure (Flow Cell)1 bar (2–4 L/min)
Enclosure MaterialStainless Steel 1.4571 / 1.4404 or Titanium Grade 3.7035
IP RatingIP68
Power Supply12–24 VDC (±10%)
Power Consumption≤1 W
Dimensions (10 mm path)300 mm × 48 mm
Weight (10 mm, stainless steel)1.6 kg
Compliant WithISO 7027 (turbidity correlation), ASTM D5540 (SAC-based organic carbon estimation), EN ISO 8466-1 (calibration linearity), FDA 21 CFR Part 11-ready data logging (via TriOS software)
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BrandPro-Oceanus
OriginCanada
ModelCO2-Pro™
Measurement PrincipleMembrane Equilibration with NDIR Detection
Standard Range0–600 µatm (extendable to 0–2000 µatm)
Accuracy±0.5% of reading
Resolution0.01 ppm (equivalent to 0.01 µatm)
Response Time (t₆₃)2.5 min (with integrated pump)
Operating DepthUp to 50 m
Housing MaterialAcetal (POM)
Temperature Range0–30 °C (standard), –2–20 °C (polar), 15–40 °C (tropical)
Power Input10–18 VDC
Power Consumption4 W (10 W during warm-up, including SBE 3K pump)
Data OutputRS-232 (ASCII), optional 0–5 V analog or 4–20 mA
Sampling IntervalConfigurable down to 1 s
Internal Storage2 GB microSD card
Weight6.5 kg in air / 0.5 kg in water
Dimensions33 cm length × 19 cm diameter
Pressure/Temperature/Humidity CompensationAutomatic and embedded
Zero CalibrationAutomatic Zero Point Calibration (AZPC) with onboard CO₂ scrubber
Biofouling ResistanceFully membrane-isolated optical path
ComplianceDesigned for GLP-aligned long-term deployments
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BrandCTG
OriginUnited Kingdom
Manufacturer TypeAuthorized Distributor
Origin CategoryImported
ModelERAS
PricingAvailable Upon Request
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BrandPro-Oceanus
OriginCanada
ModelMini CO2
Measurement PrincipleMembrane Equilibration with NDIR Detection
CO₂ Range0–2000 ppm (extendable to 0–100% vol)
TDGP Range0–2 bar
Accuracy±2% of full scale (pCO₂), ±1% FS (TDGP)
Response Time (t₆₃)3 min
Resolution0.1% of full scale
Operating Depth600 m (acetal housing), 6000 m (titanium housing)
Dimensions28 cm × 5.3 cm (L × Ø)
Weight in Air0.53 kg
Weight in Water0.06 kg
Temperature Range–2 °C to +35 °C
Power Input7–24 VDC (digital), 12–24 VDC (analog)
Power Consumption0.45 W (digital), 0.6–0.9 W (analog)
Data OutputRS-232 (ASCII CSV), 0–5 V or 4–20 mA
Sampling IntervalConfigurable down to 2 s
Internal Storage2 GB microSD
Pressure/Temperature/Humidity CompensationAutomatic
ComplianceDesigned for ASTM D5176, ISO 14687, and GLP-aligned long-term environmental monitoring deployments
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BrandCTG
OriginUnited Kingdom
Manufacturer TypeAuthorized Distributor
Origin CategoryImported
ModelUviLux FUEL-BTEX
Instrument TypeOnline
Measurement PrincipleFluorescence Spectrophotometry
Measurement Range3.0–50,000 ppb (as BTEX-equivalent)
Detection Limit20 ppb (LOD)
Accuracy±3% of reading
Resolution3 ppb
Measurement Frequency10 Hz
Sensitivity (QSU)0.06 QSU/ppb
Calibration Range0–600 QSU
Max Operating Depth1000 m
Operating Temperature−2 °C to 40 °C
Storage Temperature−40 °C to 70 °C
DimensionsØ70 mm × 149 mm
Weight800 g (air), 150 g (water)
Housing MaterialAcetal C
ConnectorMCBH6MP (wet-mateable)
Supply Voltage9–36 V DC
Power Consumption<1 W @ 12 V
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BrandSEBA
OriginGermany
ModelKLL / KLL-T / KLL-Mini
Cable Options10–500 m
Depth Accuracy≤1 cm (up to 300 m)
Temperature Accuracy±0.10 °C (0–25 °C), ±0.15 °C (0–50 °C)
Conductivity Ranges4 selectable (20 μS/cm – 50 mS/cm)
Power6 V DC (KLL/KLL-T, 4 × 1.5 V AA) or 3 V DC (KLL-Mini, 2 × 1.5 V AA)
Operating Temp−15 °C to +50 °C
Storage Temp−40 °C to +80 °C
IP RatingIP68 (probe), IP52 (reel)
Probe Diameter10–16 mm
Display8-character LCD (KLL-T)
Language SupportEnglish, German, French, Spanish
Reel MaterialHeat-resistant polymer
Frame MaterialAnodized aluminum
CablePE-sheathed dual-steel-core corrosion-resistant cable
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BrandSea-Bird Scientific
OriginUSA
ManufacturerWET Labs (designed and manufactured)
ModelECO Series
Instrument TypeSubmersible Optical Sensor Platform
Deployment ModesProfiling, Moored, Buoy-Mounted, Handheld (via optional interface)
ComplianceIP68 rated, ASTM D3921-22 (for turbidity), ISO 10264-2 (for chlorophyll-a fluorescence calibration traceability), GLP-compliant data logging
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BrandTriOS
OriginGermany
ModelLISA 254
Instrument TypeOnline Analyzer
Measurement PrincipleUV Absorption Spectrophotometry at 254 nm
Wavelength254 nm
Measurement Range10–5000 mg/L COD<sub>eq</sub>
Accuracy±5% of reading
Repeatability±5% RSD
LOD0.01 mg/L COD<sub>eq</sub>
Measurement Interval1 s
Batch Capacity15 samples
Optical Path Length Options1, 2, 5, 10, or 50 mm
Turbidity CompensationDual-channel (254 nm + 530 nm)
Output Interfaces4–20 mA analog, Ethernet (TCP/IP), RS-232/RS-485 (Modbus RTU, TriOS protocol)
Power Supply12–24 VDC (±10%), ≤1 W
Operating Temperature2–40 °C (sample & ambient)
Pressure RatingUp to 30 bar (SubConn), 3 bar (fixed cable), 1 bar (flow cell)
Enclosure MaterialStainless Steel (1.4571 / 1.4404) or Titanium (3.7035)
IP RatingIP68
Dimensions (10 mm path)300 mm × 48 mm
Weight (10 mm path, stainless steel)1.6 kg
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BrandWetlabs
OriginUSA
ModelECO-Fl
Measurement PrincipleIn-situ optical fluorescence detection at 470 nm excitation / 695 nm emission
Detection Range0–60, 0–125, or 0–250 µg/L (user-selectable)
Sensitivity0.02 µg/L
Housing MaterialAcetal polymer (seawater-corrosion resistant)
DimensionsØ63 × 127 mm
Depth Rating600 m standard, optional 6000 m
Weight0.4 kg in air / 0.02 kg in water
Digital OutputRS-232, 19200 baud, 12-bit resolution
Analog Output0–5 V
Internal Data LoggingOptional, up to 65,000 samples
Power Input7–15 VDC
Current Draw80 mA (active), 85 µA (sleep mode)
Sampling Rate8 Hz
Anti-foulingOptional copper-brush wiper with programmable cycle
ConnectorSUBCONN Micro 5-pin male
Optional AccessoriesHandheld terminal, biofouling barrier, integrated battery pack
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BrandTriOS
OriginGermany
ModelNICO plus
Measurement PrincipleUV Absorption Spectrophotometry (254 nm)
Optical Path Length10 mm
Detection MethodDual-wavelength (254 nm + reference)
CalibrationBuilt-in temperature compensation
InterfaceG2 Web-enabled Ethernet interface
ComplianceDIN EN ISO 7027 (turbidity), ASTM D5540 (UVT), USP <643> (TOC estimation), GLP/GMP-ready data logging
Sample HandlingIn-situ, flow-through or immersion mode
Reagent-FreeYes
Optical WindowNano-coated quartz
Data StorageInternal SD card (optional), real-time streaming via Modbus TCP/RTU, HTTP API
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BrandPro-Oceanus
OriginCanada
ModelMini CH4™
Measurement PrincipleMembrane Inlet Non-Dispersive Infrared (NDIR) Spectroscopy
CH₄ Range0–1% v/v, 0–10% v/v, or 0–100% v/v (user-selectable)
TDGP Range0–2 bar
Accuracy±3% FS (CH₄), ±1% FS (TDGP)
Stabilization Time (t₆₃)8 min (with pump head)
Resolution0.1% FS
Depth Rating600 m (acetal housing), 6000 m (titanium housing)
Operating Temperature−2 °C to 35 °C
Power Input7–24 VDC (digital), 12–24 VDC (analog)
Power Consumption0.45 W (digital), 0.6–0.9 W (analog)
Data OutputRS-232 (ASCII CSV), 0–5 V analog, or 4–20 mA
Sampling IntervalConfigurable down to 2 s
Internal Storage2 GB microSD card
Housing MaterialAcetal or Grade 5 Titanium (Ti-6Al-4V)
Weight in Air0.53 kg
Weight in Water0.06 kg
Dimensions28 cm L × 5.3 cm Ø
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BrandTriOS
OriginGermany
ModelOPUS UV
Light SourceXenon lamp
Detector256-channel miniature spectrometer (200–360 nm, 0.8 nm/pixel)
Measurement PrincipleAbsorption spectroscopy (attenuation-based)
Optical Path Lengths0.3 mm, 1 mm, 2 mm, 5 mm, 10 mm, 50 mm
Turbidity CompensationYes
Data Memory2 GB internal
Measurement Interval≥1 minute
Output InterfacesRS232 or RS485
Power Consumption≤8 W
Housing MaterialStainless steel or titanium alloy (seawater-resistant)
DimensionsØ48 × 470 mm
Weight3 kg (stainless steel, 10 mm path)
Pressure Rating30 bar (with SubConn connector), 3 bar (fixed cable), 1 bar (flow cell, 2–4 L/min)
Ingress ProtectionIP68
Sample Temperature Range2–40 °C
Ambient Temperature Range2–40 °C
Storage Temperature Range−20–80 °C
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BrandTriOS
OriginGermany
ModelOPUS HS
TypeOnline Analyzer
Optical PrincipleUV Absorption Spectrophotometry (200–360 nm)
Light SourcePulsed Xenon Lamp
Detector256-channel Miniature Spectrometer
Spectral Resolution0.8 nm/pixel
Optical Path Lengths0.3, 1, 2, 5, 10, 50 mm
Turbidity CompensationYes
Data Storage2 GB internal
Measurement Interval≥1 min
Output InterfacesRS232 / RS485
Power Consumption≤8 W
Housing MaterialStainless Steel or Titanium Alloy
DimensionsØ48 × 470 mm
Weight3 kg (stainless steel, 10 mm path) / 2 kg (titanium, 10 mm path)
Pressure Rating30 bar (SubConn connector), 3 bar (fixed cable), 1 bar (flow cell, 2–4 L/min)
IP RatingIP68
Operating Temperature (Sample)2–40 °C
Ambient Temperature2–40 °C
Storage Temperature−20–80 °C
ComplianceDesigned for continuous operation in wastewater, drinking water, and industrial effluent monitoring per ISO 7027 (turbidity), ASTM D515-18 (sulfide), and GLP/GMP-aligned data integrity practices
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BrandTriOS
OriginGermany
ModelmicroFlu-HC
Measurement PrincipleUV-induced fluorescence (255 nm excitation, 360 nm emission)
Target AnalytesPolycyclic Aromatic Hydrocarbons (PAHs) and total petroleum hydrocarbons (TPH) in water
RangePAHs 0–5000 ppb, TPH 0–150 ppm
LODPAHs 5 ppb, TPH 0.15 ppm
Accuracy±10 % FS
Response Time (T90)6 s
Min. Measurement Interval3 s
Digital InterfaceRS-485 / Modbus RTU
Analog Outputs4–20 mA (default), 0–5 V, 0–10 V
Power Supply12–24 VDC (±10 %)
Housing MaterialStainless Steel 1.4571/1.4404 or Titanium Grade 3.7035
Dimensions162 mm × 48 mm
Weight~650 g (SS), ~510 g (Ti)
Max. Pressure Rating30 bar (SubConn), 3 bar (fixed cable), 1 bar (flow cell)
IP RatingIP68
Operating Temp.+2 to +40 °C (sample & ambient)
Storage Temp.−20 to +80 °C
Flow Rate Compatibility0.1–10 m/s
Optical WindowNano-coated quartz
Turbidity CompensationNone
Data LoggingInternal storage not supported
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BrandChelsea
OriginUK
ModelLabSTAF
Excitation Wavelengths417, 452, 472, 505, 534, 594, 622 nm
Actinic Light Range10–2400 µmol photons·m⁻²·s⁻¹ (12-bit resolution)
Detection Limit0.001 mg/m³ Chl-a
Sample Chamber20 mL quartz vertical cylinder with BK7 base
Power Supply24 VDC, 140–400 mA (3.4–9.7 W)
Dimensions (H×D×W)235 × 320 × 420 mm
IP RatingIP65
Weight8.1 kg
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BrandTriOS
OriginGermany
ModelEnviroFlu-HC
Instrument TypeOnline
Measurement PrincipleUV-Induced Fluorescence
Measurement Range0–5000 ppb (PAH)
Detection Limit0.3 ppb
Accuracy±1% of reading
Resolution0.1 ppb
Measurement Frequency1 Hz
Excitation Wavelength254 nm
Emission Wavelength360 nm
Housing MaterialStainless Steel 1.4571/1.4404 or Titanium Grade 3.7035
Dimensions311 mm × 68 mm
Weight2.7 kg (stainless), 1.9 kg (titanium)
Pressure Rating30 bar (SubConn), 3 bar (fixed cable), 1 bar (flow cell)
Ingress ProtectionIP68
Operating Temperature+2 °C to +40 °C (sample), –5 °C to +55 °C (ambient)
extended accuracy range0–40 °C
Flow Velocity0.1–10 m/s
Power Supply12–24 VDC (±10%)
Power Consumption≤3.5 W
Output InterfacesRS-232 (TriOS protocol), 4–20 mA, 0–5 V
Response Time (T₁₀₀)≤10 s
Calibration Interval24 months
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BrandTriOS
OriginGermany
ModelOPUS aero
Optical Path Lengths0.3 mm, 1 mm, 2 mm
Nitrate-N (NO₃-N) Range2.4–120 mg/L (0.3 mm), 0.7–36 mg/L (1 mm), 0.35–18 mg/L (2 mm)
Nitrite-N (NO₂-N) Range4.4–220 mg/L (0.3 mm), 1.3–67 mg/L (1 mm), 0.65–33.5 mg/L (2 mm)
Wavelength Range200–360 nm
Resolution0.8 nm/pixel
Detector256-channel Miniature Spectrometer
Light SourceXenon Flash Lamp
Turbidity CompensationYes
Accuracy±(5% + 0.1 mg/L)
Response Time2 min
Minimum Measurement Interval1 min
Housing MaterialStainless Steel 1.4571 / 1.4404
Dimensions470 × 48 mm
Weight~3 kg
Digital InterfacesEthernet (TCP/IP), RS-232/RS-485 (Modbus RTU)
Power Supply12–24 VDC (±10%)
Max. Power Consumption≤8 W
Pressure Rating3 bar (fixed cable), 1 bar (flow cell, 2–4 LPM)
IP RatingIP68
Operating Temperature+2 to +40 °C (sample & ambient), -20 to +80 °C (storage)
Flow Velocity0.1–10 m/s
Calibration Interval24 months
Data Storage2 GB internal
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BrandTriOS
OriginGermany
ModelmicroFlu CDOM
Light SourceHigh-efficiency blue LEDs (370 nm) with internal reference photodiode
DetectorPhotodiode (460 nm, 20 nm FWHM)
Measurement Range0–20 μg/L and 0–200 μg/L (dual-range auto-adaptive)
Detection Limit0.02 μg/L
Resolution0.02 μg/L
Accuracy±3% of reading
HousingMarine-grade stainless steel (corrosion-resistant to seawater)
DimensionsØ48 × 200 mm
Weight0.5 kg
Pressure Rating500 m water depth
Electrical InterfaceRS-232 and 0–5 V analog output
ConnectorSUB-CONN Micro 5-pin male
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BrandIn-situ Marine
OriginAustralia
ModelCTD-Optics Series
Measurement PrincipleHigh-stability quartz crystal conductivity cell, PT1000 RTD temperature sensor, piezoresistive pressure transducer
Data Logging16 GB microSD (timestamped binary + ASCII log files)
Power ManagementIntegrated 11.1 V / 7.8 Ah Li-ion battery with programmable sleep mode (65 µA)
CommunicationTriple RS-232 channels (configurable baud rate 9600–115200 bps), optional Wi-Fi download & 4G telemetry via C-TEL interface
ComplianceIP68 rated housing
Environmental RatingLong-term submersible deployment up to 100 m depth
Operating Temperature0–40 °C (ambient)
sensor range−55 to +125 °C (temperature), 0–100 m (depth), 0–100,000 µS/cm (conductivity)
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BrandPro-Oceanus
OriginCanada
ModelSolu-Blu CH4
Measurement PrincipleMembrane Inlet Non-Dispersive Infrared (NDIR)
CH₄ Range0–30 mg/L (switchable to 0–3 mg/L and 0–300 µg/L)
TDGP Range0–2 bar
Accuracy±3% of full scale (pCH₄), ±0.1% FS (TDGP)
Response Time (t₆₃)10 min
Resolution0.1% of full scale
Operating Depth0–50 m
Temperature Range0–35 °C
Power Input7–24 VDC
Power Consumption90 mW (RS-232 + 0–5 V), 300–600 mW (RS-232 + 4–20 mA)
OutputRS-232 (ASCII), 0–5 V analog, or 4–20 mA analog
Sampling IntervalConfigurable down to 2 s
Dimensions19.68 cm (L, sensor only), 25.68 cm (L with connector)
Weight0.47 kg
Housing MaterialAcetal (POM)
Standard Cable3 m integrated
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BrandTriOS
OriginGermany
ModelLISA color
Optical Path Lengths50 mm, 100 mm, 150 mm, 250 mm
Measurement PrinciplesAbsorption-based attenuation at dual-wavelength LED pairs (e.g., 436 nm & 740 nm)
Compliance StandardsDIN EN ISO 7887:2012-04 (Methods B & C), DIN EN ISO 6271-2:2005-03, GOST 3351-74
Measured ParametersSAC (436/525/620 nm), True Color (410 nm), Hazen/APHA (390/455 nm), Cr-Co (380/413 nm)
Turbidity CompensationYes, via 740 nm reference channel
Accuracy±0.5 % of reading
Response Time4 s
Minimum Measurement Interval2 s
Housing MaterialsStainless Steel 1.4571 / 1.4404 or Titanium Grade 2 (3.7035)
Dimensions (L × Ø)340 mm × 48 mm (for 50 mm path)
Weight~2.4 kg (stainless), ~1.3 kg (titanium)
Digital InterfacesEthernet (TCP/IP), RS-232/RS-485 (Modbus RTU)
Analog Output4–20 mA
Power Supply12–24 VDC (±10 %), ≤1 W
Max. Pressure Rating30 bar (SubConn), 3 bar (fixed cable), 1 bar (flow cell)
IP RatingIP68
Operating Temperature+2 °C to +40 °C
Storage Temperature−20 °C to +80 °C
Flow Velocity Range0.1–10 m/s
Data Memory~2 MB
Calibration Interval24 months
Optical WindowNano-coated sapphire
Cleaning OptionOptional pneumatic cleaning system
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BrandmicroLAN
Country of OriginNetherlands
ModelBACTcontrol
Measurement PrincipleEnzymatic Fluorescence Assay
Target Analytesβ-Galactosidase (coliforms), β-Glucuronidase (E. coli), Alkaline Phosphatase (total viable biomass)
Measurement Cycle1–2 h
Detection MethodSubstrate-specific fluorogenic enzymatic reaction
Sample Flow Rate3 L/h
Sample Temperature Range10–35 °C
Ambient Operating Temperature15–30 °C
Power Supply220 V / 50 Hz or 110 V / 60 Hz
Power Consumption<100 W
Enclosure RatingIP54 (optional IP65)
Dimensions (H×W×D)460 × 450 × 321 mm
Weight25 kg
Housing MaterialAluminum
Max. Sample Pressure0.05 bar
Interface2× USB 2.0 (Type A), 2× Gigabit Ethernet (RJ45), Modbus TCP/RTU, 2× digital inputs, 2× relay outputs, 1× 4–20 mA analog output
OptionalUMTS/ISDN modem slot, dual-sample inlet with auxiliary cleaning module, climate control unit (>30 °C ambient), automated NaOCl-based cleaning system (≤0.05% active chlorine)
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BrandmicroLAN
OriginNetherlands
ModeliTOXcontrol
Instrument TypeOnline
Biological Indicator*Aliivibrio fischeri* (formerly *Vibrio fischeri*)
Operating Temperature5–40 °C
Reagent Temperature Range15–30 °C
RepeatabilityRelative Error ≤5%
Sample Throughput10 mL/h (4.5 mL per test, 2 tests/h)
Measurement Duration40 min
Enclosure RatingIP31
Power Supply220 VAC, 50 Hz or 110 VAC, 60 Hz
Dimensions (D×W×H)50×50×110 cm (plus 73 cm with trolley)
Weight90 kg (excl. optional air conditioning unit: +20 kg)
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BrandMicrowise
OriginDenmark
ModelBallastWISE
PortabilityPortable
Biological TargetAlgal and zooplanktonic organisms
Operating Temperature0–40 °C
Reagent Storage Temperature0–40 °C
Repeatability±1%
Sample ThroughputPer batch
Analysis Time5 s
Detection PrincipleDual-mode fluorescence imaging + motility-based viability assessment
Size Classes Quantified10–50 µm and >50 µm
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